2007 VOLUME 7 NUMBER 7

Product Directory

Boron Reagents for Suzuki Coupling

Borylation Reagents

Boronic Acids

Boronate Esters

Trifluoroborate Salts

Potassium cyclopropyltrifluoroborate: a simple reagent for the introduction of a cyclopropyl group via Suzuki cross–coupling.

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Table of Contents

Sigma-Aldrich is committed to providing the most extensive portfolio of high-quality boronic acids, boronate esters, and trifluoroborate salts for use in Suzuki coupling, and we continually expand our product listing. Within each section of this directory, products are listed by increasing molecular formula. If you are unable to find a coupling reagent for your research, “Please Bother Us” [email protected] , or contact your local Sigma-Aldrich office (see back cover). If viewing the electronic version, simply select from the category below to jump to that section or activate your Adobe® Bookmarks. You may also search by name, product number, molecular formula, or CAS registry number by using the “find” feature in Adobe® (Ctrl+F in Windows® or Command+F in a Macintosh® environment).

Borylation Reagents Boronate Esters Trifluoroborate Salts

Introduction Boronic Acids Alkylboronate esters Alkyltrifluoroborates Alkylboronic acids Alkenylboronate esters Alkenyltrifluoroborates Alkenylboronic acids Allenyl- and Alkynylboronate esters Aryltrifluoroborates Arylboronic acids Arylboronate esters S-Heteroaryltrifluoroborates N-Heteroarylboronic acids N-Heteroarylboronate esters O-Heteroarylboronic acids O-Heteroarylboronate esters S-Heteroarylboronic acids S-Heteroarylboronate esters

Foreword Akira Suzuki Professor Emeritus, Hokkaido University Sapporo, Japan Reactions in which new carbon–carbon bonds are formed are key steps in building the complex, bioactive molecules that become developed into drugs and agrochemicals. These reactions are also vital in developing the new generation of ingeniously designed organic materials with novel electronic, optical, or mechanical properties, that are likely to play a significant role in the burgeoning area of nanotechnology.

During the past 40 years, the most important carbon–carbon bond-forming methodologies have involved the use of transition metals to mediate the reactions in a controlled and selective manner. Perhaps the most widely used of these chemistries is the cross-coupling reaction of various organoboron compounds with organic electrophiles catalyzed by a palladium complex. This reaction, Suzuki coupling, is now regarded as an integral part of innumerable synthetic routes used to build complex organic chemicals.

Suzuki coupling has many advantages. The reactants are readily available, nontoxic, and air- and water-stable. They react under mild conditions and are amenable to a variety of reaction conditions, including the use of aqueous solvents and substrate supports. The inorganic boron byproducts can be easily removed after completion of the reaction. Most important of all, the coupling proceeds with high regio- and stereoselectivity, and is little affected by steric hindrance. It does not affect other functional groups in the The Suzuki Coupling Reaction molecule, and can be used in one-pot strategies. R BYn PdLn The reaction has proved to be extremely + R R versatile. It was first carried out between Base alkenyl reactants, but over the years, R X the scope of the reaction has been - extended to couple carbon atoms in Yn = (OH)2, (OR)2, F3 , R2 aryl, alkyl, and alkynyl groups under a X = halide, OTf, N + wide variety of conditions. Thus, the 2 Suzuki coupling reaction is truly “carbon–carbon bond formation made easy.”

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Borylation Reagents

4,4,5,5-Tetramethyl-1,3,2-dioxaborolane, Bis(pinacolato)diboron Bis(diethyl-l-tartrate glycolato)diboron CH O O sold by volume 473294 3 CH3 527165 H C CH H3C O O CH3 3 O O 3 CH B B O O 456462 3 C12H24B2O4 C16H24B2O12 B B H C O H3C O O CH3 3 H C O O O O B H CH3 CH3 3 Pinacolborane MW: 253.94 MW: 429.98 CH3 H3C O O O CH C6H13BO2 3 [73183-34-3] [480438-20-8] MW: 127.98 d [25015-63-8] Bis(hexylene glycolato)diboron Bis(diisopropyl- -tartrate glycolato)- Reagents Borylation

CH3 CH 525685 H C 3 diboron 3 O O BB CH H C 4,4,5,5-Tetramethyl-1,3,2-dioxaborolane, C12H24B2O4 527173 3 O O 3 O O CH3 H C CH H C 3 O O 3 sold by weight MW: 253.94 3 CH3 C20H32B2O12 O O B B 655856 CH3 [230299-21-5] MW: 486.08 H C O O O O 3 CH H3C O 3 B H CH O O Pinacolborane [480438-21-9] 3 H3C H3C O CH Bis(catecholato)diboron C6H13BO2 3 473286 O O Bis(diisopropyl-l-tartrate MW: 127.98 B B O O [25015-63-8] C12H8B2O4 glycolato)diboron MW: 237.81 CH H C 527181 3 O O 3 H3C CH3 4,4,5,5-Tetramethyl-1,3,2-dioxaborolane [13826-27-2] C20H32B2O12 O O O O B B solution, 1.0 M in tetrahydrofuran MW: 486.08 H3C O O O O CH3 CH Bis[(+)-pinanediolato]diboron CH O O 458945 3 [230299-10-2] 3 H3C H C O 3 H CH B H 527130 3 Pinacolborane O O H C O 3 B B CH C20H32B2O4 Bis(N,N,N’,N’-tetramethyl-d-tartaramide C6H13BO2 3 O O MW: 127.98 MW: 358.09 CH3 H glycolato)diboron [230299-17-9] O O [25015-63-8] 527203 H3C CH3 N O O N H C CH C16H28B2N4O8 3 B B 3 H C Catecholborane solution, 1.0 M in Bis[(–)-pinanediolato]diboron 3 N O O N CH3 MW: 426.04 H C CH H 3 O O 3 527149 CH3 tetrahydrofuran O O [230299-42-0] C H B O B B 225762 O 20 32 2 4 O O B H CH3 H O MW: 358.09 Bis(N,N,N’,N’-tetramethyl-l-tartaramide C6H5BO2 MW: 119.91 [230299-05-5] glycolato)diboron O O [274-07-7] 527238 H3C CH3 d N O O N Bis(diethyl- -tartrate glycolato)diboron H C CH C16H28B2N4O8 3 B B 3 H C Bis(neopentyl glycolato)diboron 527157 O O 3 N O O N CH3 H3C CH3 MW: 426.04 H C CH O O O O 3 O O 3 O O C16H24B2O12 B B 518808 H3C CH3 [480438-22-0] BB O O H C CH H3C O O 3 O O 3 MW: 429.98 CH3 C10H20B2O4 O O MW: 225.89 [312693-46-2] [201733-56-4]

Boronic Acids Alkylboronic acids

Methylboronic acid Butylboronic acid 3-Methyl-1-butylboronic acid

OH OH CH3 165336 163244 H3C B 655090 H C B OH 3 OH CH BO OH C H BO C H BO H3C B 5 2 4 11 2 5 13 2 OH MW: 59.86 MW: 101.94 MW: 115.97 [13061-96-6] [4426-47-5] [98139-72-1]

Cyclopropylboronic acid (2-Methylpropyl)boronic acid Cyclohexylboronic acid OH H C OH OH 597988 346225 3 B 556580 B B OH CH3 OH OH C3H7BO2 C4H11BO2 C6H13BO2 MW: 85.90 MW: 101.94 MW: 127.98 [411235-57-9] [84110-40-7] [4441-56-9]

Isopropylboronic acid Cyclopentylboronic acid Phenethylboronic acid 648787 CH3 588415 OH 588423 OH OH B B C H BO H3C B C H BO OH C H BO OH 3 9 2 OH 5 11 2 8 11 2 MW: 87.91 MW: 113.95 MW: 149.98 [80041-89-0] [63076-51-7] [34420-17-2] m o c . h c i r d l a - a m g i s

Cyclobutylboronic acid Neopentylboronic acid 8 646598 OH 683671 OH B B OH OH C4H9BO2 C5H13BO2 MW: 99.92 MW: 115.97 [849052-26-2] [701261-35-0]

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Alkenylboronic acids

trans-2-Chloromethylvinylboronic acid trans-2-(4-Chlorophenyl)vinylboronic acid trans-2-(4-(Trifluoromethyl)phenyl)- 556599 OH 523569 OH vinylboronic acid Cl B B C H BClO OH C H BClO OH 519022 OH 3 6 2 8 8 2 B Cl OH MW: 120.34 MW: 182.41 C9H8BF3O2 [215951-86-3] [154230-29-2] MW: 215.96 F3C [352525-91-8] cis-1-Propene-1-boronic acid trans-2-(3-Fluorophenyl)vinylboronic acid 572179 CH3 OH 637971 OH trans-2-(4-Methylphenyl)vinylboronic B B OH OH C3H7BO2 C8H8BFO2 acid OH MW: 85.90 MW: 165.96 F 568139 B OH [7547-96-8] [849062-22-2] C9H11BO2 MW: 161.99 H3C trans-1-Propen-1-ylboronic acid trans-2-(4-Fluorophenyl)vinylboronic acid [72316-17-7] 576638 OH 518972 OH B B H3C OH OH C3H7BO2 C8H8BFO2 trans-3-Phenyl-1-propen-1-ylboronic acid F MW: 85.90 MW: 165.96 642606 OH B OH [7547-97-9] [214907-24-1] C9H11BO2 MW: 161.99 trans-2-Buten-2-ylboronic acid trans-2-Phenylvinylboronic acid [129423-29-6] Boronic Boronic Acids 638056 CH3 OH 473790 OH B B H OH OH C4H9BO2 C8H9BO2 trans-2-(4-Methoxyphenyl)vinylboronic CH3 MW: 99.92 MW: 147.97 acid [125261-72-5] [6783-05-7] 518980 OH B OH C9H11BO3 3-Methyl-2-buten-2-ylboronic acid 1-Phenylvinylboronic acid MW: 177.99 H3CO 639079 CH3 OH 571350 OH B B [72316-18-8] H3C OH OH C5H11BO2 C8H9BO2 CH3 MW: 113.95 MW: 147.97 trans-1-Nonenylboronic acid [870777-16-5] [14900-39-1] 579394 OH B H3C OH C9H19BO2 trans-1-Penten-1-ylboronic acid trans-2-Cyclohexylvinylboronic acid MW: 170.06 578452 OH 596256 OH B B [57404-77-0] H3C OH OH C5H11BO2 C8H15BO2 MW: 113.95 MW: 154.01 Vinylboronic anhydride pyridine complex [104376-24-1] [37490-33-8] 637998 B C11H14B3NO23 O O • trans-1-Heptenylboronic acid trans-1-Octen-1-ylboronic acid B B N MW: 240.67 O 579386 OH 521027 OH B H3C B [442850-89-7] H3C OH OH C7H15BO2 C8H17BO2 MW: 142.00 MW: 156.03 trans-2-(4-Biphenyl)vinylboronic acid [42599-16-6] 526045 OH B OH C14H13BO2 MW: 224.06 [352530-23-5]

Arylboronic acids

4-Bromo-2,3,5,6-tetrafluorophenylboronic 2,3,4,6-Tetrafluorophenylboronic 8 3-Bromo-2,6-difluorophenylboronic acid acid acid 557242 F OH B F OH F OH OH 593966 680621 C6H4BBrF2O2 F B B OH OH F C6H2BBrF4O2 C6H3BF4O2 MW: 236.81 Br Br F F F MW: 272.79 F MW: 193.89 F [352535-84-3] [511295-00-4] Phenyl-d5-boronic acid 6-Bromo-2,3-difluorophenylboronic acid 517860 D OH 6-Bromo-2-fluoro-3-iodophenyl- 8 635774 Br OH D B B OH OH C6H2BD5O2 boronic acid C6H4BBrF2O2 MW: 126.96 D D 666793 Br OH MW: 236.81 F D B F OH [215527-70-1] C6H4BBrFIO2 [870718-10-8] F MW: 344.71 I Pentafluorophenylboronic acid 2-Bromo-4,5-difluorophenylboronic acid 465097 F OH 4-Bromo-2,6-difluorophenylboronic acid 645281 OH F B F B OH 557218 F OH C H BBrF O OH C6H2BF5O2 B 6 4 2 2 F F OH F Br MW: 211.88 F C6H4BBrF2O2 MW: 236.81 [1582-24-7] MW: 236.81 Br F [849062-34-6]

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3,6-Dibromo-2-fluorophenylboronic acid 3-Bromo-5-fluorophenylboronic acid 2-Fluoro-3-iodophenylboronic acid 651087 Br OH 645346 OH 593524 OH B F B B OH OH OH C6H4BBr2FO2 C6H5BBrFO2 C6H5BFIO2 F F MW: 297.71 Br MW: 218.82 Br MW: 265.82 I [870778-92-0] [849062-37-9] 2-Fluoro-6-iodophenylboronic acid 2,4-Dibromo-6-fluorophenylboronic acid 3,5-Dibromophenylboronic acid 639451 I OH B 651257 F OH 499501 OH C H BFIO OH B Br B 6 5 2 OH OH F C6H4BBr2FO2 C6H5BBr2O2 MW: 265.82 Br Br MW: 297.71 MW: 279.72 Br [870777-22-3] [870778-96-4] [117695-55-3] 2,4-Difluorophenylboronic acid 3,5-Dibromo-2-fluorophenylboronic acid 3-Chloro-4-fluorophenylboronic acid 465070 OH B 661937 OH 512230 OH C H BF O OH Acids Boronic Br B B 6 5 2 2 OH OH F F C6H4BBr2FO2 C6H5BClFO2 MW: 157.91 F F MW: 297.71 Br MW: 174.37 Cl [144025-03-6] [144432-85-9] 2,3,4-Trifluorophenylboronic acid 3,4-Difluorophenylboronic acid 524085 OH 3-Chloro-2-fluorophenylboronic acid 465089 OH B B C H BF O OH 557226 OH C H BF O OH 6 4 3 2 B 6 5 2 2 F F OH F MW: 175.90 F C6H5BClFO2 MW: 157.91 F F [226396-32-3] MW: 174.37 Cl [168267-41-2]

2,3,6-Trifluorophenylboronic acid 5-Chloro-2-fluorophenylboronic acid 2,6-Difluorophenylboronic acid 524093 F OH 557234 OH 470791 F OH B Cl B B OH OH OH C6H4BF3O2 C6H5BClFO2 C6H5BF2O2 F F F MW: 175.90 F MW: 174.37 MW: 157.91 [247564-71-2] [162101-25-9] 2-Chloro-6-fluorophenylboronic acid 2,4,6-Trifluorophenylboronic acid 566071 F OH 3,5-Difluorophenylboronic acid B F OH OH OH 524107 C6H5BClFO2 471925 B F B OH Cl OH C6H4BF3O2 MW: 174.37 C6H5BF2O2 F F MW: 175.90 [313545-32-3] MW: 157.91 F [182482-25-3] [156545-07-2] 3,5-Dichlorophenylboronic acid 2,4,5-Trifluorophenylboronic acid 445207 OH 2,5-Difluorophenylboronic acid Cl B 524689 OH C H BCl O OH 514020 OH F B 6 5 2 2 F B OH OH C6H4BF3O2 MW: 190.82 Cl C6H5BF2O2 MW: 175.90 F F [67492-50-6] MW: 157.91 F [247564-72-3] [193353-34-3] 3,4-Dichlorophenylboronic acid 2,3,5-Trifluorophenylboronic acid 471917 OH 2,3-Difluorophenylboronic acid B OH OH OH 524697 C6H5BCl2O2 514039 F B B OH Cl OH C6H4BF3O2 MW: 190.82 Cl C6H5BF2O2 F F MW: 175.90 F [151169-75-4] MW: 157.91 F [247564-73-4] [121219-16-7] 2,5-Dichlorophenylboronic acid 3,4,5-Trifluorophenylboronic acid 512311 OH 2-Bromophenylboronic acid Cl B 524700 OH C H BCl O OH 473804 OH F B 6 5 2 2 B OH Cl OH C6H4BF3O2 MW: 190.82 C6H6BBrO2 F Br MW: 175.90 F [135145-90-3] MW: 200.83 [143418-49-9] [244205-40-1] 2,3-Dichlorophenylboronic acid 3-Bromo-2-fluorophenylboronic acid 514047 OH 3-Bromophenylboronic acid B 558214 OH C H BCl O OH 441627 OH B 6 5 2 2 B OH Cl OH C6H5BBrFO2 MW: 190.82 Cl C6H6BBrO2 F MW: 218.82 Br [151169-74-3] MW: 200.83 Br [352535-97-8] [89598-96-9] 2,4-Dichlorophenylboronic acid 5-Bromo-2-fluorophenylboronic acid 521388 OH 4-Bromophenylboronic acid B OH OH OH 593621 C6H5BCl2O2 B75956 Br B Cl Cl B OH OH C6H5BBrFO2 MW: 190.82 C6H6BBrO2 F Br

MW: 218.82 [68716-47-2] MW: 200.83 m o c . h c i r d l a - a m g i s [112204-57-6] [5467-74-3] 2-Fluoro-5-iodophenylboronic acid 2-Bromo-6-fluorophenylboronic acid 593419 OH 2-Chlorophenylboronic acid I B 593737 F OH C H BFIO OH 445215 OH B 6 5 2 B OH F OH C6H5BBrFO2 MW: 265.82 C6H6BClO2 MW: 218.82 Br MW: 156.37 Cl [3900-89-8]

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3-Chlorophenylboronic acid Phenylboronic acid 3,5-Difluoro-4-formylphenylboronic acid 417521 OH P20009 OH 635782 OH B B F B OH OH OH C6H6BClO2 C6H7BO2 C7H5BF2O3 H

MW: 156.37 Cl MW: 121.93 MW: 185.92 O F [63503-60-6] [98-80-6] [870718-11-9]

4-Chlorophenylboronic acid 3-Mercaptophenylboronic acid 2,6-Difluoro-3-formylphenylboronic acid 417548 OH 523992 OH 652210 F OH B B B OH OH OH C6H6BClO2 C6H7BO2S C7H5BF2O3 Cl F MW: 156.37 MW: 153.99 SH MW: 185.92 H O [1679-18-1] [352526-01-3] [849062-09-5]

2-Fluorophenylboronic acid 4-Mercaptophenylboronic acid 2-Fluoro-5-(trifluoromethyl)phenyl- 445223 OH 524018 OH boronic acid B B C H BFO OH C H BO S OH 558184 OH 6 6 2 6 7 2 F C B F HS 3 OH MW: 139.92 MW: 153.99 C7H5BF4O2 [1993-03-9] [237429-33-3] MW: 207.92 F [352535-96-7] 3-Fluorophenylboronic acid 3-Hydroxyphenylboronic acid 441643 OH 523968 OH 2-Fluoro-6-(trifluoromethyl)- B B 8 OH OH C6H6BFO2 C6H7BO3 phenylboronic acid

Boronic Boronic Acids MW: 139.92 F MW: 137.93 OH 558192 CF3 OH B OH [768-35-4] [87199-18-6] C7H5BF4O2 MW: 207.92 F 4-Fluorophenylboronic acid 4-Hydroxyphenylboronic acid [313545-34-5] 417556 OH 523976 OH B B OH OH C6H6BFO2 C6H7BO3 2-Fluoro-3-(trifluoromethyl)phenyl- MW: 139.92 F MW: 137.93 HO boronic acid [1765-93-1] [71597-85-8] 558206 OH B OH C7H5BF4O2 3-Iodophenylboronic acid 3-Aminophenylboronic acid hemisulfate F MW: 207.92 CF3 441678 OH A71751 OH B B [157834-21-4] OH OH C6H6BIO2 C6H8BNO2 • 0.5H2SO4 • 0.5H2SO4

MW: 247.83 I MW: 185.98 NH2 4-Methoxy-2,3,5,6-tetrafluorophenyl- [221037-98-5] [66472-86-4] boronic acid 657301 F OH F B 4-Iodophenylboronic acid 3-Aminophenylboronic acid monohydrate OH C7H5BF4O3 OH OH 471933 287512 H3CO F B B MW: 223.92 F OH OH C6H6BIO2 C6H8BNO2 • H2O • H2O I [871126-20-4]

MW: 247.83 MW: 154.96 NH2 [5122-99-6] [206658-89-1] 3-Fluoro-4-formylphenylboronic acid 542296 OH B 2-Nitrophenylboronic acid 8 3-Aminophenylboronic acid OH C7H6BFO3 H 673862 OH hydrochloride B MW: 167.93 O F OH OH C6H6BNO4 410705 B [248270-25-9] NO2 OH MW: 166.93 C6H8BNO2 • HCl • HCl [5570-19-4] MW: 173.41 NH2 2-Fluoro-3-formylphenylboronic acid [85006-23-1] 645788 OH B 3-Nitrophenylboronic acid OH C7H6BFO3 325104 OH Benzene-1,4-diboronic acid F B MW: 167.93 OH O H C6H6BNO4 417130 OH B [849061-98-9] OH MW: 166.93 NO C H B O 2 6 8 2 4 HO [13331-27-6] B MW: 165.75 OH 2-Fluoro-4-formylphenylboronic acid [4612-26-4] 657344 OH B 4-Nitrophenylboronic acid 8 OH C7H6BFO3 H 673854 OH 2,3-Difluoro-4-formylphenylboronic acid F B MW: 167.93 O OH C6H6BNO4 571377 OH B [871126-22-6] MW: 166.93 O2N OH C7H5BF2O3 H [24067-17-2] F MW: 185.92 O F 2-(Trifluoromethyl)phenylboronic acid [480424-84-8] 445193 OH B 4-Amino-3-nitrophenylboronic acid 8 OH C7H6BF3O2 OH 651621 2,4-Difluoro-3-formylphenylboronic acid CF3 B MW: 189.93 OH C6H7BN2O4 597406 OH B [1423-27-4] MW: 181.94 H2N OH NO2 C7H5BF2O3 [89466-07-9] MW: 185.92 F F H O [870718-06-2]

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3-(Trifluoromethyl)phenylboronic acid 2-Chloro-6-fluoro-3-methylphenylboronic 3-Carboxyphenylboronic acid 432032 OH acid 456764 OH B B OH F OH OH C7H6BF3O2 557250 C7H7BO4 B OH MW: 189.93 CF3 C7H7BClFO2 MW: 165.94 HO O [1423-26-3] Cl [25487-66-5] MW: 188.39 CH3 [352535-85-4] 4-(Trifluoromethyl)phenylboronic acid 4-Carboxyphenylboronic acid 439320 OH 2-Chloro-6-fluoro-5-methylphenylboronic 456772 OH B B OH OH C7H6BF3O2 acid C7H7BO4 HO F3C F OH MW: 189.93 557269 MW: 165.94 O H C B 3 OH [128796-39-4] C7H7BClFO2 [14047-29-1] MW: 188.39 Cl 2-(Trifluoromethoxy)phenylboronic 8 [352535-86-5] 3,4-(Methylenedioxy)phenylboronic acid acid 499994 OH Acids Boronic O B OH OH 683787 5-Chloro-2-fluoro-3-methylphenylboronic C7H7BO4 B O OH C7H6BF3O3 acid MW: 165.94 OCF MW: 205.93 3 557277 OH [94839-07-3] Cl B OH [175676-65-0] C7H7BClFO2 F 2-(Bromomethyl)phenylboronic acid 8 MW: 188.39 CH3 3-(Trifluoromethoxy)phenylboronic acid 679453 OH [352535-87-6] B OH OH 510122 C7H8BBrO2 B Br OH C7H6BF3O3 2,6-Difluoro-4-methoxyphenylboronic MW: 214.85 [91983-14-1] MW: 205.93 OCF3 acid [179113-90-7] 593060 F OH B OH 3-(Bromomethyl)phenylboronic acid 8 C7H7BF2O3 OH 4-(Trifluoromethoxy)phenylboronic acid H3CO F 679445 MW: 187.94 B OH OH 510130 C7H8BBrO2 B [406482-20-0] OH C7H6BF3O3 MW: 214.85 F CO Br MW: 205.93 3 4,5-Difluoro-2-methoxyphenylboronic [51323-43-4] [139301-27-2] acid 4-(Bromomethyl)phenylboronic acid 8 645184 OH F B OH 3-Methoxy-2,4,6-trifluorophenylboronic OH 679437 B C7H7BF2O3 OH acid F OCH3 C7H8BBrO2 MW: 187.94 Br 652202 F OH MW: 214.85 B [870777-32-5] OH [68162-47-0] C7H6BF3O3 F F MW: 205.93 OCH3 2,6-Difluoro-3-methoxyphenylboronic 3-Bromo-5-methylphenylboronic acid [849062-08-4] acid 645311 OH F OH H C B 652164 3 OH B 2-Cyanophenylboronic acid OH C7H8BBrO2 C H BF O OH 7 7 2 3 521396 F MW: 214.85 Br B MW: 187.94 OH OCH3 [849062-36-8] C7H6BNO2 [870779-02-5] MW: 146.94 CN 5-Bromo-2-methoxyphenylboronic acid [138642-62-3] 3,5-Diiodo-2-methoxyphenylboronic 8 512702 OH Br B acid OH C7H8BBrO3 3-Cyanophenylboronic acid OH 666165 OCH3 513016 OH I B MW: 230.85 B OH OH C7H7BI2O3 C H BNO OCH [89694-45-1] 7 6 2 MW: 403.75 3 MW: 146.94 I CN 3-Bromo-5-methoxyphenylboronic acid [150255-96-2] 2-Formylphenylboronic acid 652326 OH OH H3CO B 431958 OH 4-Cyanophenylboronic acid B C7H8BBrO3 C H BO OH 7 7 3 H 521418 OH MW: 230.85 Br B MW: 149.94 OH O [849062-12-0] C7H6BNO2 [40138-16-7] MW: 146.94 NC [126747-14-6] 3-Chloro-4-methylphenylboronic 8 3-Formylphenylboronic acid acid 441651 OH B 680559 OH 3-Bromo-5-fluoro-2-methoxyphenyl- OH B C7H7BO3 OH boronic acid C7H8BClO2 MW: 149.94 H3C 645176 OH H O MW: 170.40 Cl F B [87199-16-4] OH [175883-63-3] C7H7BBrFO3 MW: 248.84 OCH3 Br 4-Formylphenylboronic acid 2-Chloro-6-methoxyphenylboronic acid [352525-85-0] 431966 OH B 512753 H3CO OH OH m o c . h c i r d B l a - a m g i s C7H7BO3 OH 2-Bromo-6-fluoro-3-methoxyphenyl- H C7H8BClO3 MW: 149.94 Cl O MW: 180.35 boronic acid [87199-17-5] 662011 F OH [385370-80-9] B OH C7H7BBrFO3 Br

MW: 248.84 OCH3

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5-Chloro-2-methoxyphenylboronic acid 4-Fluoro-2-methoxyphenylboronic acid 2-Methoxyphenylboronic acid 512249 OH 564494 OH 445231 OH Cl B B B OH OH OH C7H8BClO3 C7H8BFO3 C7H9BO3 OCH OCH MW: 186.40 3 MW: 169.95 F OCH3 MW: 151.96 3 [89694-48-4] [179899-07-1] [5720-06-9]

3-Chloro-4-methoxyphenylboronic acid 2-Fluoro-3-methoxyphenylboronic acid 3-Methoxyphenylboronic acid 564486 OH 594253 OH 441686 OH B B B OH OH OH C7H8BClO3 C7H8BFO3 C7H9BO3 H3CO F MW: 186.40 Cl MW: 169.95 MW: 151.96 OCH3 OCH3 [175883-60-0] [352303-67-4] [10365-98-7]

4-Fluoro-3-methylphenylboronic acid 2-Fluoro-5-methoxyphenylboronic acid 4-Methoxyphenylboronic acid 483567 OH 597112 OH 417599 OH B H3CO B B OH OH OH C7H8BFO2 C7H8BFO3 C7H9BO3 F F H3CO MW: 153.95 CH3 MW: 169.95 MW: 151.96 [139911-27-6] [406482-19-7] [5720-07-0]

4-Fluoro-2-methylphenylboronic acid 4-Aminocarbonylphenylboronic acid 8 3-(Hydroxymethyl)phenylboronic acid 565652 OH 683876 OH 512834 OH B B B OH OH OH C7H8BFO2 C7H8BNO3 C7H9BO3 H2N F CH3 Boronic Boronic Acids MW: 153.95 MW: 164.95 O MW: 151.96 HO [139911-29-8] [123088-59-5] [87199-15-3]

2-Fluoro-4-methylphenylboronic acid 4-Methyl-3-nitrophenylboronic acid 4-(Hydroxymethyl)phenylboronic acid 567418 OH 521477 OH 512338 OH B B B OH OH OH C7H8BFO2 C7H8BNO4 C7H9BO3 HO H3C F H3C MW: 153.95 MW: 180.95 NO2 MW: 151.96 [170981-26-7] [80500-27-2] [59016-93-2]

3-Fluoro-4-methylphenylboronic acid o-Tolylboronic acid 3,5-Bis(trifluoromethyl)phenylboronic 567426 OH 393606 OH acid B B OH OH OH C7H8BFO2 C7H9BO2 471070 CH F C B H3C 3 3 OH MW: 153.95 F MW: 135.96 C8H5BF6O2 [168267-99-0] [16419-60-6] MW: 257.93 CF3 [73852-19-4] 2-Fluoro-5-methylphenylboronic acid m-Tolylboronic acid 567434 OH 393614 OH 2-Fluoro-3,5-diformylphenylboronic acid H3C B B OH OH O OH C7H8BFO2 C7H9BO2 645796 B F H OH MW: 153.95 MW: 135.96 CH3 C8H6BFO4 [166328-16-1] [17933-03-8] MW: 195.94 F H O [870778-85-1] 5-Fluoro-2-methylphenylboronic acid p-Tolylboronic acid 567442 OH 393622 OH 4-Ethoxy-2,3,5,6-tetrafluorophenyl- F B B OH OH C7H8BFO2 C7H9BO2 boronic acid CH H C MW: 153.95 3 MW: 135.96 3 657298 F OH F B OH [163517-62-2] [5720-05-8] C8H7BF4O3 H3C O F MW: 237.94 F 5-Fluoro-2-methoxyphenylboronic acid 2-(Methylthio)phenylboronic acid [871125-72-3] 483540 OH 521248 OH F B B OH OH C7H8BFO3 C7H9BO2S 3,5-Diformylphenylboronic acid OCH3 SCH3 MW: 169.95 MW: 168.02 567485 O OH B H OH [179897-94-0] [168618-42-6] C8H7BO4 MW: 177.95 2-Fluoro-6-methoxyphenylboronic acid 3-(Methylthio)phenylboronic acid [480424-62-2] H O OH 512761 H3CO OH 526002 B B OH OH C7H8BFO3 C7H9BO2S 3-Bromo-5-formyl-2- 8 F MW: 169.95 MW: 168.02 SCH3 methoxyphenylboronic acid [78495-63-3] [128312-11-8] 680664 O OH B H OH C8H8BBrO4 3-Fluoro-4-methoxyphenylboronic acid 4-(Methylthio)phenylboronic acid OCH3 MW: 258.86 Br 564036 OH 456802 OH B B OH OH C7H8BFO3 C7H9BO2S 2-Fluoro-5-acetylphenylboronic acid H3CO H3CS O OH MW: 169.95 F MW: 168.02 639583 B H3C OH [149507-26-6] [98546-51-1] C8H8BFO3 MW: 181.96 F [870777-29-0]

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3-Acetyl-2-fluorophenylboronic acid 3-Acetylphenylboronic acid 5-Bromo-3-ethoxyphenylboronic acid 651249 OH 470813 OH 651192 OH B B Br B OH OH OH C8H8BFO3 C8H9BO3 C8H10BBrO3 F MW: 181.96 MW: 163.97 MW: 244.88 O CH H C O 3 [870778-95-3] H3C O [204841-19-0] 3 [849062-02-8]

5-Fluoro-3-formyl-2- 8 4-Acetylphenylboronic acid 5-Chloro-2-ethoxyphenylboronic acid methoxyphenylboronic acid 470821 OH 542547 OH B Cl B OH OH OH 680699 C8H9BO3 C8H10BClO3 F B H3C OH O CH3 C8H8BFO4 MW: 163.97 O MW: 200.43 MW: 197.96 OCH3 [149104-90-5] [352534-86-2] H O 3-Ethoxy-2,4,6-trifluorophenylboronic 3-Formyl-5-methylphenylboronic acid 3-Chloro-4-ethoxyphenylboronic acid acid 645338 OH 564478 OH Acids Boronic H3C B B F OH OH OH 657247 C8H9BO3 C8H10BClO3 B OH H3C O C H BF O MW: 163.97 MW: 200.43 Cl 8 8 3 3 H O F F [870777-33-6] [279261-81-3] MW: 219.95 O CH3 [871125-69-8] 5-Formyl-2-methoxyphenylboronic acid 4-Ethoxy-3-fluorophenylboronic acid 4-Methoxy-2-(trifluoromethyl)- 8 512257 O OH 564044 OH B B H OH OH phenylboronic acid C8H9BO4 C8H10BFO3 H C O OH OCH3 3 666912 MW: 179.97 MW: 183.97 F B OH C8H8BF3O3 [127972-02-5] [279263-10-4] MW: 219.95 H3CO CF3 [313546-16-6] 3-Formyl-2-methoxyphenylboronic 8 2-Ethoxy-4-fluorophenylboronic acid acid 564508 OH B OH OH 3-Bromo-2-ethoxy-5-fluorophenylboronic 666157 C8H10BFO3 B F O CH OH 3 acid C8H9BO4 MW: 183.97 542512 OH MW: 179.97 OCH3 [480438-58-2] F B OH O H C8H9BBrFO3 O CH3 3-Formyl-4-methoxyphenylboronic acid 5-Ethoxy-2-fluorophenylboronic acid MW: 262.87 Br 512869 OH 594393 OH [352534-82-8] B H3C O B OH OH C8H9BO4 C8H10BFO3 F 2-Bromo-3-ethoxy-6-fluorophenylboronic MW: 179.97 H3CO MW: 183.97 H O acid [121124-97-8] 645710 F OH 2-Ethoxy-6-fluorophenylboronic acid B OH 2-Methoxycarbonylphenylboronic 8 594504 F OH C8H9BBrFO3 B Br OH acid C8H10BFO3 MW: 262.87 O CH3 O CH 683809 OH MW: 183.97 3 [849052-19-3] B OH C8H9BO4 OCH3 2-Ethoxy-5-fluorophenylboronic acid 4,5-Difluoro-2-ethoxyphenylboronic acid MW: 179.97 O OH OH 594954 650943 [374538-03-1] F B F B OH C H BF O OH C8H10BFO3 8 9 2 3 O CH3 MW: 201.96 F O CH3 3-Methoxycarbonylphenylboronic acid MW: 183.97 591130 OH [870778-87-3] B OH C8H9BO4 3-Ethoxy-2-fluorophenylboronic acid OH 2,6-Difluoro-3-ethoxyphenylboronic acid MW: 179.97 639389 B H3CO O OH 650951 F OH [99769-19-4] C8H10BFO3 B F OH MW: 183.97 O CH C8H9BF2O3 3 F 4-Methoxycarbonylphenylboronic acid [855230-61-4] MW: 201.96 O CH 3 594539 OH [849062-00-6] B C H BO OH 2-Acetamidophenylboronic acid 8 8 9 4 H3CO MW: 179.97 683906 OH 3-Vinylphenylboronic acid 8 O B OH 680575 OH [99768-12-4] C8H10BNO3 B NH OH MW: 178.98 C8H9BO2 H3C O MW: 147.97 5-Bromo-2-ethoxyphenylboronic acid [169760-16-1] 512826 OH [15016-43-0] Br B OH 3-Acetamidophenylboronic acid C8H10BBrO3 O CH3 566012 OH 4-Vinylphenylboronic acid MW: 244.88 B OH 417580 OH [352525-82-7] C8H10BNO3 B OH MW: 178.98 C8H9BO2 HN CH3 MW: 147.97 3-Bromo-2-methoxy-5-methylphenyl- [78887-39-5] O

[2156-04-9] boronic acid m o c . h c i r d l a - a m g i s 596183 OH 4-Acetamidophenylboronic acid H C B 3 OH 565806 OH 2-Acetylphenylboronic acid C8H10BBrO3 B OCH O OH OH 3 C H BNO 470805 MW: 244.88 Br 8 10 3 B H3C N OH MW: 178.98 H C8H9BO3 [870717-99-0] CH3 [101251-09-6] MW: 163.97 O [308103-40-4]

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2,6-Dimethylphenylboronic acid 4-Methoxy-3-methylphenylboronic acid 3-Isopropoxy-2,4,6-trifluorophenylboronic 480061 CH3 OH 595500 OH acid B B OH OH F OH C8H11BO2 C8H11BO3 657360 B CH3 H3CO OH MW: 149.98 MW: 165.98 CH3 C9H10BF3O3 [100379-00-8] [175883-62-2] F F MW: 233.98 O CH3

[871125-73-4] CH3 3,5-Dimethylphenylboronic acid 4-Methoxy-2-methylphenylboronic acid 480088 OH 639370 OH 3-Propoxy-2,4,6-trifluorophenylboronic H C B B 3 OH OH C8H11BO2 C8H11BO3 acid H3CO CH3 F OH MW: 149.98 CH3 MW: 165.98 657379 B OH [172975-69-8] [208399-66-0] C9H10BF3O3 F F MW: 233.98 O 2,3-Dimethylphenylboronic acid 2,6-Dimethoxyphenylboronic acid [871125-70-1] CH3 OH 483508 480096 H3CO OH B B OH OH C8H11BO2 C8H11BO4 6-Bromo-2-fluoro-3- 8 CH 3 OCH3 MW: 149.98 CH3 MW: 181.98 propoxyphenylboronic acid [183158-34-1] [23112-96-1] 666882 Br OH B OH C9H11BBrFO3 2,5-Dimethylphenylboronic acid 3,4-Dimethoxyphenylboronic acid F MW: 276.90 O 483516 OH 480118 OH CH3 H C B B 3 OH OH C8H11BO2 C8H11BO4 6-Bromo-2-fluoro-3- 8 CH3 H3CO Boronic Boronic Acids MW: 149.98 MW: 181.98 OCH3 isopropoxyphenylboronic acid [85199-06-0] [122775-35-3] 666890 Br OH B OH C9H11BBrFO3 2-Ethylphenylboronic acid 2,4-Dimethoxyphenylboronic acid F MW: 276.90 H3C O 521523 OH 483486 OH B B CH3 C H BO OH C H BO OH 8 11 2 CH3 8 11 4 MW: 149.98 MW: 181.98 H3CO OCH3 3-Bromo-5-fluoro-2-isopropoxyphenyl- [90002-36-1] [133730-34-4] boronic acid 542520 OH F B 4-Ethylphenylboronic acid 2,5-Dimethoxyphenylboronic acid OH C9H11BBrFO3 499536 OH 483494 OH O B H3CO B MW: 276.90 Br OH OH H C CH C8H11BO2 C8H11BO4 3 3 H3C [352534-84-0] MW: 149.98 MW: 181.98 OCH3 [63139-21-9] [107099-99-0] 3-Bromo-5-fluoro-2-propoxyphenyl- boronic acid 3-(Ethylthio)phenylboronic acid 2,3-Dimethoxyphenylboronic acid 565784 OH OH F B 597295 OH 557730 OH B B C H BBrFO OH 9 11 3 CH3 OH O C8H11BO2S C8H11BO4 MW: 276.90 Br MW: 182.05 MW: 181.98 OCH3 S CH3 OCH3 [868272-84-8] [870718-05-1] [40972-86-9] 2-Bromo-6-fluoro-3-propoxyphenyl- 2-Ethoxyphenylboronic acid 3-(Dimethylamino)- 8 boronic acid 455520 OH phenylboronic acid B 645729 F OH OH OH B C H BO 680532 OH 8 11 3 B O CH3 OH C9H11BBrFO3 MW: 165.98 C8H12BNO2 Br MW: 276.90 O H3C [213211-69-9] MW: 165.00 N H C CH [849052-20-6] [178752-79-9] 3 3 3-Ethoxyphenylboronic acid 2-Bromo-6-fluoro-3-isopropoxyphenyl- 441635 OH 4-(Dimethylamino)phenylboronic acid B boronic acid OH OH C8H11BO3 483532 B 661996 F OH OH B MW: 165.98 O CH3 C8H12BNO2 H C OH 3 N C9H11BBrFO3 [90555-66-1] MW: 165.00 Br CH3 MW: 276.90 [28611-39-4] H3C O 4-Ethoxyphenylboronic acid CH3 455539 OH 4-Isopropoxy-2,3,5,6-tetrafluorophenyl- B OH 4,5-Difluoro-2- 8 C8H11BO3 boronic acid H3C O isopropoxyphenylboronic acid F OH MW: 165.98 657263 OH F B 680702 H C OH F B [22237-13-4] C9H9BF4O3 3 OH H C O F C9H11BF2O3 MW: 251.97 3 F O F MW: 215.99 2-Methoxy-5-methylphenylboronic acid [871126-28-2] H3C CH3 567507 OH H3C B 2,6-Difluoro-3-propoxyphenylboronic C H BO OH 4-Propoxy-2,3,5,6-tetrafluorophenyl- 8 11 3 acid MW: 165.98 OCH3 boronic acid 652172 F OH F OH B [127972-00-3] 657271 OH F B OH C9H11BF2O3 F C9H9BF4O3 H C 3 O F MW: 215.99 O MW: 251.97 CH3 F [849062-14-2] [871125-71-2]

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2,6-Difluoro-3-isopropoxyphenylboronic 3-Bromo-5-isopropoxyphenylboronic acid 2-Fluoro-6-propoxyphenylboronic acid OH H C acid 657735 639419 3 O OH H3C O B F OH OH B 652180 C9H12BBrO3 C9H12BFO3 OH B CH3 OH F C9H11BF2O3 MW: 258.90 Br MW: 198.00 F [871125-81-4] [870777-18-7] MW: 215.99 O CH3

[849062-04-0] CH3 5-Chloro-2-isopropoxyphenylboronic acid 2-Fluoro-5-isopropoxyphenylboronic acid 3-Formyl-2-methoxy-5-methylphenyl- 542555 OH 645206 OH Cl B H C O B OH 3 OH boronic acid C9H12BClO3 C9H12BFO3 CH O 3 F 567337 OH MW: 214.45 MW: 198.00 H C B H3C CH3 3 OH C9H11BO4 [352534-87-3] [849062-30-2] MW: 193.99 OCH3 H O [480424-55-3] 3-Chloro-4-isopropoxyphenylboronic acid 4-Borono-l-phenylalanine 564443 OH 17755 OH Acids Boronic B B NH CH3 OH 2 OH 3-Ethoxy-5-formylphenylboronic 8 C9H12BClO3 C9H12BNO4 HO H3C O acid MW: 214.45 Cl MW: 209.01 O 652342 O OH [480438-56-0] [76410-58-7] B H OH C9H11BO4 MW: 193.99 3-Chloro-4-propoxyphenylboronic acid 4-Borono-dl-phenylalanine O CH3 564451 OH 512680 OH B B C H BClO OH C H BNO NH2 OH 4-Ethoxy-3-formylphenylboronic 8 9 12 3 H C 9 12 4 HO 3 O acid MW: 214.45 Cl MW: 209.01 O 677817 OH [480438-57-1] [90580-64-6] B OH C9H11BO4 MW: 193.99 H3C O 5-Chloro-2-propoxyphenylboronic acid 4-Propylphenylboronic acid H O 645192 OH 521507 OH [480424-63-3] Cl B B OH OH C9H12BClO3 CH C9H13BO2 O 3 3-Ethoxycarbonylphenylboronic acid MW: 214.45 MW: 164.01 H3C 574651 OH [849062-29-9] [134150-01-9] B OH C9H11BO4 MW: 193.99 3-Fluoro-4-propoxyphenylboronic acid 2,4,6-Trimethylphenylboronic acid H C O O 3 564052 OH 542318 CH3 OH [4334-87-6] B B C H BFO OH C H BO OH 9 12 3 H3C 9 13 2 O H3C CH3 4-Ethoxycarbonylphenylboronic acid MW: 198.00 F MW: 164.01 574643 OH [192376-68-4] [5980-97-2] B OH C9H11BO4 H3C O 3-Fluoro-4-isopropoxyphenylboronic acid 2,4,5-Trimethylphenylboronic acid MW: 193.99 O 564060 OH 542326 OH [4334-88-7] B H3C B CH3 OH OH C9H12BFO3 C9H13BO2 H3C O H3C CH3 3-Bromo-2,4,6-trimethylphenylboronic MW: 198.00 F MW: 164.01 acid [480438-54-8] [352534-80-6] 593850 CH3 OH B OH 4-Fluoro-2-isopropoxyphenylboronic acid 2-Isopropoxyphenylboronic acid C9H12BBrO2 OH H3C CH3 564516 OH 542466 MW: 242.91 Br B B OH OH C9H12BFO3 C9H13BO3 O 3-Bromo-2-ethoxy-5-methylphenyl- MW: 198.00 F O MW: 180.01 H3C CH3 H3C CH3 boronic acid [480438-59-3] [138008-97-6] 596299 OH H C B 3 OH 4-Fluoro-2-propoxyphenylboronic acid 3-Isopropoxyphenylboronic acid C9H12BBrO3 OH OH O CH3 564524 542458 MW: 258.90 B B Br OH OH C9H12BFO3 CH C9H13BO3 [870718-00-6] F O 3 MW: 198.00 MW: 180.01 O CH3

3-Bromo-2-propoxyphenylboronic acid [480438-60-6] [216485-86-8] CH3 597074 OH B OH 5-Fluoro-2-isopropoxyphenylboronic acid 4-Isopropoxyphenylboronic acid C9H12BBrO3 CH O 3 564559 OH 542474 OH MW: 258.90 Br F B B OH CH3 OH [848779-86-2] C9H12BFO3 C9H13BO3 MW: 198.00 O MW: 180.01 H3C O H3C CH3 3-Bromo-2-isopropoxyphenylboronic acid [480438-63-9] [153624-46-5] 597171 OH B OH 5-Fluoro-2-propoxyphenylboronic acid 2-Propoxyphenylboronic acid C9H12BBrO3 O 565776 OH 557722 OH MW: 258.90 Br F B B OH OH H3C CH3 C9H12BFO3 C9H13BO3 m o c . h c i r d l a - a m g i s [870718-04-0] CH3 CH3 MW: 198.00 O MW: 180.01 O 3-Bromo-5-propoxyphenylboronic acid [480438-73-1] [134896-34-7] 657514 OH O B H3C OH 2-Fluoro-5-propoxyphenylboronic acid C9H12BBrO3 594288 OH MW: 258.90 Br O B H3C OH [871126-27-1] C9H12BFO3 MW: 198.00 F

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3-Propoxyphenylboronic acid 4-Butoxy-2,3,5,6-tetrafluorophenyl- 3-Formyl-5-isopropoxyphenylboronic acid 557714 OH boronic acid 657557 OH B H3C O B OH F OH OH C9H13BO3 657255 C10H13BO4 F B CH3 OH MW: 180.01 O C10H11BF4O3 MW: 208.02 CH H O 3 H3C O F [149557-18-6] MW: 266.00 F [871125-79-0] [871126-19-1] 4-Propoxyphenylboronic acid 3-Formyl-5-propoxyphenylboronic acid 557706 OH Ferroceneboronic acid 657638 OH B O B OH OH H3C OH C9H13BO3 455547 C10H13BO4 H3C B O OH MW: 180.01 C10H11BFeO2 Fe MW: 208.02 H O [186497-67-6] MW: 229.85 [871125-80-3] [12152-94-2] 2-Ethoxy-5-methylphenylboronic acid 3-Bromo-5-butoxyphenylboronic 8 567493 OH 3-Bromo-2-isopropoxy-5- acid H C B 8 3 OH OH C9H13BO3 formylphenylboronic acid 661961 O CH H3C O B MW: 180.01 3 684619 OH C H BBrO OH B 10 14 3 OH [123291-97-4] C10H12BBrO4 H MW: 272.93 Br O MW: 286.91 O Br CH 4-Ethoxy-2-methylphenylboronic acid H3C 3 3-Bromo-2-butoxyphenylboronic acid 594830 OH 3-Butoxy-2,4,6-trifluorophenylboronic 592129 OH B B OH OH C9H13BO3 acid C10H14BBrO3 H3C O CH3 O CH3

Boronic Boronic Acids F OH MW: 180.01 657352 MW: 272.93 Br B OH [313545-31-2] C10H12BF3O3 [480425-34-1] F F

MW: 248.01 O CH3 3,5-Dimethyl-4-methoxyphenylboronic [871126-23-7] 3-Bromo-2-isopropoxy-5-methylphenyl- acid boronic acid 598062 OH N-(4-Phenylboronic)succinamic acid 596620 OH H3C B H3C B OH OH OH C9H13BO3 578754 C10H14BBrO3 B H3CO O OH O MW: 180.01 MW: 272.93 Br CH3 C10H12BNO5 HO N H3C CH3 H [301699-39-8] MW: 237.02 O [870718-01-7] [480424-95-1] 2,3,4-Trimethoxyphenylboronic acid 3-Bromo-5-methyl-2-propoxyphenyl- 512281 OH 3-Bromo-2-butoxy-5-fluorophenylboronic boronic acid B OH OH C9H13BO5 acid 596744 H C B H3CO OCH3 3 OH OH MW: 212.01 OCH3 542539 C10H14BBrO3 F B CH3 OH O [118062-05-8] C10H13BBrFO3 MW: 272.93 Br O CH3 MW: 290.92 Br [870718-02-8] 3,4,5-Trimethoxyphenylboronic acid [352534-85-1] 651648 OH 2-Butoxy-5-chlorophenylboronic acid H3CO B C H BO OH 6-Bromo-3-butoxy-2-fluorophenylboronic 542563 OH 9 13 5 Cl B H3CO OH MW: 212.01 OCH3 acid C10H14BClO3 O CH3 [182163-96-8] 661953 Br OH MW: 228.48 B OH C10H13BBrFO3 [352534-88-4] 3-(Trimethylsilyl)phenylboronic acid F MW: 290.92 H3C O 523666 OH 4-Butoxy-3-chlorophenylboronic acid B OH OH C9H15BO2Si 564435 2-Bromo-3-butoxy-6-fluorophenylboronic B OH MW: 194.11 Si acid C10H14BClO3 H C CH 3 3 H3C O CH3 [177171-16-3] 661945 F OH MW: 228.48 Cl B OH C10H13BBrFO3 [480438-55-9] 4-(Trimethylsilyl)phenylboronic acid Br MW: 290.92 H C O 523674 OH 3 4-Butoxy-3-fluorophenylboronic acid B OH OH C9H15BO2Si 564079 H3C 3-Butoxy-2,6-difluorophenylboronic acid B Si OH MW: 194.11 H3C F OH CH3 652199 C10H14BFO3 B H C O [17865-11-1] OH 3 C10H13BF2O3 MW: 212.03 F F [156487-13-7] MW: 230.02 O CH3 1-Naphthylboronic acid [849062-15-3] HO OH N257 B 2-Butoxy-4-fluorophenylboronic acid C H BO 564532 OH 10 9 2 2-Ethoxy-3-formyl-5-methylphenyl- B OH MW: 171.99 boronic acid C10H14BFO3 F O CH3 [13922-41-3] 567329 OH MW: 212.03 H C B 3 OH [480438-61-7] C10H13BO4 2-Naphthylboronic acid O CH3 MW: 208.02 480134 OH H O 2-Butoxy-5-fluorophenylboronic acid B [480424-54-2] C H BO OH 564540 OH 10 9 2 F B OH MW: 171.99 3-Formyl-4-isopropoxyphenyl- 8 C10H14BFO3 O CH3 [32316-92-0] boronic acid MW: 212.03 666742 OH [480438-62-8] B CH3 OH C10H13BO4 MW: 208.02 H3C O H O

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2-Fluoro-6-isopropoxyphenylboronic acid 2-Isopropoxy-5-methylphenylboronic acid 3,5-Diformyl-2- 8 639397 CH3 565660 OH propoxyphenylboronic acid H3C B C H BFO H3C O OH C H BO OH 684546 O OH 10 14 3 B 10 15 3 B OH O H OH MW: 212.03 MW: 194.04 C11H13BO5 F H3C CH3 O [870777-17-6] [480438-71-9] MW: 236.03 CH H O 3 2-Butoxy-6-fluorophenylboronic acid 4-Propoxy-2-methylphenylboronic acid 3-Formyl-2-isopropoxy-5-methylphenyl- 639427 F OH 594725 OH boronic acid B B OH OH OH C10H14BFO3 C10H15BO3 567302 H3C H C B O CH3 O CH3 3 OH MW: 212.03 MW: 194.04 C11H15BO4 [870777-19-8] MW: 222.05 O CH3 O H CH 3,5-Dimethyl-4-ethoxyphenylboronic acid [480424-52-0] 3 5-Butoxy-2-fluorophenylboronic acid 597945 OH H3C B OH OH Acids Boronic 645230 C10H15BO3 3-Formyl-5-methyl-2-propoxyphenyl- H3C O B OH H3C O C10H14BFO3 MW: 194.04 CH3 boronic acid F MW: 212.03 [850568-59-1] 661988 OH H3C B [849062-31-3] C H BO OH 11 15 4 CH3 3-Isobutoxyphenylboronic acid MW: 222.05 O 4-tert-Butylphenylboronic acid 645737 OH H O B [480424-53-1] OH OH 480053 C10H15BO3 B OH CH3 C10H15BO2 MW: 194.04 O 3-Bromo-2-butoxy-5-methylphenyl- H3C MW: 178.04 [849052-21-7] boronic acid [123324-71-0] 596841 OH H C B 2-Isobutoxyphenylboronic acid 3 OH C11H16BBrO3 OH 4-Butylphenylboronic acid 645745 O CH3 B MW: 286.96 Br 521493 OH C H BO OH B 10 15 3 CH3 [870718-03-9] C H BO OH MW: 194.04 O 10 15 2 H3C CH3 MW: 178.04 [833486-92-3] 3-(N-Boc-amino)phenylboronic acid [145240-28-4] OH 578851 B 4-Isobutoxyphenylboronic acid OH C11H16BNO4 2,3,5,6-Tetramethylphenylboronic acid 639605 OH B MW: 237.06 HN O CH3 OH OH 521515 C10H15BO3 H C B H3C [380430-68-2] O 3 OH O C10H15BO2 MW: 194.04 CH3 CH3 MW: 178.04 CH3 [153624-44-3] 4-(N-Boc-amino)phenylboronic acid [197223-36-2] 565814 OH B 4-Isopropoxy-2-methylphenylboronic acid O OH C11H16BNO4 2-Butoxyphenylboronic acid 657328 OH O N B MW: 237.06 H 542482 OH C H BO CH3 OH B 10 15 3 [380430-49-9] OH H3C O CH3 C10H15BO3 MW: 194.04 O CH MW: 194.04 3 [871126-21-5] 2-Butoxy-5-methylphenylboronic acid [91129-69-0] 565679 OH H C B 2-Isopropoxy-6-methoxyphenylboronic 3 OH C11H17BO3 3-Butoxyphenylboronic acid acid MW: 208.06 O CH3 OH 542490 650978 H3CO OH B B [480438-72-0] OH OH C10H15BO3 C10H15BO4 O MW: 194.04 O CH3 MW: 210.03 4-Butoxy-2-methylphenylboronic acid H3C CH3 [352534-81-7] [870778-88-4] 594628 OH B OH C11H17BO3 4-Butoxyphenylboronic acid 2,4-Diethoxyphenylboronic acid 8 MW: 208.06 H3C O CH3 542504 OH 680680 OH B B OH OH C10H15BO3 C10H15BO4 3,5-Dimethyl-4-isopropoxyphenylboronic H C O MW: 194.04 3 MW: 210.03 H3C O O CH3 acid [105365-51-3] 597732 OH H3C B 4-Methyl-1-naphthaleneboronic acid CH OH C11H17BO3 3 HO OH 5-Methyl-2-propoxyphenylboronic acid 521450 B H3C O MW: 208.06 CH OH 3 565644 C11H11BO2 H3C B [849062-16-4] C H BO OH MW: 186.01 10 15 3 CH3 O CH3 MW: 194.04 [103986-53-4] 3,5-Dimethyl-4-propoxyphenylboronic [480438-70-8] acid 6-Methoxy-2-naphthaleneboronic acid 597848 OH OH H C B 5-Isopropyl-2-methoxyphenyl- 8 521892 3 OH B C11H17BO3 OH H3C boronic acid C11H11BO3 O H3CO MW: 208.06 CH3 CH3 OH

680583 MW: 202.01 m o c . h c i r d l a - a m g i s B [357611-51-9] H3C OH C10H15BO3 [156641-98-4] OCH MW: 194.04 3 2-Isobutoxy-5-methylphenylboronic acid 3,5-Diformyl-2-isopropoxyphenyl- [216393-63-4] 8 651230 OH H C B boronic acid 3 OH C11H17BO3 CH 680648 O OH O 3 B MW: 208.06 H OH CH3 C11H13BO5 [870778-94-2] MW: 236.03 O CH3 H O CH3

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2-Isobutoxy-6- 8 2-Butoxy-3-formyl-5-methylphenyl- 3-Bromo-2-(4’-chlorobenzyloxy)phenyl- methoxyphenylboronic acid boronic acid boronic acid 662003 H3CO OH 567299 OH 645842 OH B H C B B OH 3 OH OH C11H17BO4 C12H17BO4 C13H11BBrClO3 CH3 O O CH3 O MW: 224.06 CH MW: 236.07 MW: 341.39 Br 3 Cl [480424-51-9] H O [849052-23-9] 2-Fluoro-4-biphenylylboronic acid 512109 OH 4-Butoxy-3,5-dimethylphenylboronic acid 3-Bromo-2-(4’-fluorobenzyloxy)phenyl- F B OH OH C12H10BFO2 597511 boronic acid H3C B MW: 216.02 C H BO OH OH 12 19 3 645761 B [178305-99-2] H3C O OH MW: 222.09 CH3 C13H11BBrFO3 O [845551-41-9] MW: 324.94 Br F 2-Biphenylboronic acid [849052-22-8] 542202 OH 2,4-Dipropoxyphenylboronic acid B 8 OH C12H11BO2 680672 OH 3-Bromo-2-(3’-bromobenzyloxy)- B OH MW: 198.03 C12H19BO4 phenylboronic acid H3C CH3 [4688-76-0] MW: 238.09 O O 639567 OH B [150145-25-8] OH C13H11BBr2O3 Br 3-Biphenylboronic acid O MW: 385.84 Br 542199 OH 3-(tert-Butyldimethylsilyoxy)phenyl- B [849062-27-7] OH C12H11BO2 boronic acid

Boronic Boronic Acids MW: 198.03 524034 OH 3-Benzyloxy-2,6-difluorophenylboronic B OH [5122-95-2] C12H21BO3Si acid F OH MW: 252.19 O CH3 635707 Si B 4-Biphenylboronic acid CH3 OH [261621-12-9] C13H11BF2O3 483451 OH F B MW: 264.03 OH O C12H11BO2 4-(tert-Butyldimethylsilyloxy)phenyl- [870718-07-3] MW: 198.03 boronic acid [5122-94-1] 524042 OH 4-Benzoylphenylboronic acid B OH OH C12H21BO3Si 526010 B Acenaphthene-5-boronic acid O OH MW: 252.19 Si C13H11BO3 HO OH CH B 3 567477 CH3 [159191-56-7] MW: 226.04 O C12H11BO2 [268218-94-6] MW: 198.03 2,6-Difluoro-3-(2’-chlorobenzyloxy)- [183158-33-0] phenylboronic acid 4-Benzyloxy-3-chlorophenylboronic acid 651362 F OH 595616 OH B B 2-Phenoxyphenylboronic acid OH OH C13H10BClF2O3 C13H12BClO3 521485 OH F O B MW: 298.48 OH O MW: 262.50 Cl C12H11BO3 [870778-99-7] Cl [845551-44-2] MW: 214.02 O [108238-09-1] 3-(4’-Chlorobenzyloxy)phenylboronic acid 2-(2’-Chlorobenzyloxy)phenylboronic acid 651036 OH 639443 OH B B 4-Phenoxyphenylboronic acid OH OH C13H10BClO3 Cl C13H12BClO3 480142 OH O B MW: 260.48 O MW: 262.50 OH Cl C12H11BO3 [870778-90-8] [870777-21-2] MW: 214.02 O [51067-38-0] 4-(4’-Chlorobenzyloxy)phenylboronic acid 3-(2-Chlorobenzyloxy)phenylboronic acid 651044 OH 635731 OH B B 4,4’-Biphenyldiboronic acid OH OH C13H10BClO3 C13H12BClO3 456799 OH O B MW: 260.48 MW: 262.50 O OH Cl C12H12B2O4 [870778-91-9] [845551-45-3] Cl MW: 241.84 HO B [4151-80-8] OH 2,6-Difluoro-3-(2’-fluorobenzyloxy)- 2-(3’-Chlorobenzyloxy)phenylboronic acid phenylboronicacid 645249 OH B 2-Ethoxy-1-naphthaleneboronic acid F OH OH 651346 C13H12BClO3 Cl HO OH B O 521884 B OH C13H10BF3O3 MW: 262.50 O CH3 C12H13BO3 MW: 282.02 F [849062-32-4] MW: 216.04 O [836615-83-9] F [148345-64-6] 3-(3’-Chlorobenzyloxy)phenylboronic acid 4-(3-Bromobenzyloxy)-3-chlorophenyl- 645265 OH B 6-Ethoxy-2-naphthaleneboronic acid OH boronic acid C13H12BClO3 OH 521906 OH B 639524 MW: 262.50 O OH B Cl C12H13BO3 OH [849062-33-5] H3C O C13H11BBrClO3 Br MW: 216.04 O MW: 341.39 Cl [352525-98-5] [849062-25-5] 2-(3’-Fluorobenzyloxy)phenylboronic acid 657492 OH B OH C13H12BFO3 F MW: 246.04 O [871126-24-8]

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3-(3-Fluorobenzyloxy)phenylboronic acid 2-((2’-Chloro-5’-(trifluoromethyl)- 3-Bromo-2-(4’-chlorobenzyloxy)-5- OH 661872 B phenoxy)methyl)phenylboronic acid methylphenylboronic acid OH OH OH C13H12BFO3 652245 645508 B H C B OH 3 OH MW: 246.04 O C H BClF O C H BBrClO F 14 11 3 3 O CF3 14 13 3 O MW: 330.49 MW: 355.42 Br Cl Cl 3-(4’-Fluorobenzyloxy)phenyl- 8 [849062-11-9] [849052-18-2] boronic acid 666777 OH 3-((2’-Chloro-5’-(trifluoromethyl)- 3-Bromo-2-(2’-fluorobenzyloxy)-5- B OH C13H12BFO3 F phenoxy)methyl)phenylboronic acid methylphenylboronic acid MW: 246.04 OH OH O 657530 645400 H C B B 3 OH CF3 OH C14H11BClF3O3 C14H13BBrFO3 4-(3-Fluorobenzyloxy)phenylboronic acid O MW: 330.49 MW: 338.96 Br 661864 OH O F B [871126-25-9] Cl [849062-18-6]

OH Acids Boronic C13H12BFO3 F O MW: 246.04 2-((3’-(Trifluoromethyl)- 8 3-Bromo-2-(3’-fluorobenzyloxy)-5- phenoxy)methyl)phenylboronic acid methylphenylboronic acid 3-(2’-Fluorobenzyloxy)phenylboronic acid 666866 OH 645419 OH OH B H C B 652113 OH 3 OH B C H BF O C H BBrFO OH 14 12 3 3 O CF3 14 13 3 F O C13H12BFO3 MW: 296.05 MW: 338.96 Br MW: 246.04 O [849062-40-4] [849062-13-1] F 3-(3’-(Trifluoromethyl)phenoxymethyl)- phenylboronic acid 3-Bromo-2-(4’-fluorobenzyloxy)-5- 2-(4’-Fluorobenzyloxy)phenylboronic acid OH 651311 B methylphenylboronic acid OH OH 652105 B OH OH C14H12BF3O3 645427 H3C B C13H12BFO3 MW: 296.05 C H BBrFO OH O F C O 14 13 3 MW: 246.04 3 O F [870778-98-6] MW: 338.96 Br [870779-01-4] [849062-41-5] F 4-(3’-(Trifluoromethyl)phenoxymethyl)- 4-(4’-Fluorobenzyloxy)phenylboronic acid phenylboronic acid 3-Bromo-2-(3’-bromobenzyloxy)-5- OH 658073 OH B 651222 methylphenylboronic acid OH B C13H12BFO3 OH OH C14H12BF3O3 645478 O F3C O H C B MW: 246.04 MW: 296.05 3 OH F C14H13BBr2O3 Br [871125-82-5] O [849062-03-9] MW: 399.87 Br [849052-16-0] 2-Benzyloxyphenylboronic acid 2-((4’-(Trifluoromethoxy)phenoxy)methyl)- 521337 OH B phenylboronic acid 2-Benzyloxy-3-bromo-5-methylphenyl- OH C13H13BO3 652156 OH boronic acid O B MW: 228.05 OH OH C14H12BF3O4 639435 O H C B [190661-29-1] 3 OH MW: 312.05 C14H14BBrO3 OCF [849062-07-3] 3 MW: 320.97 O 3-Benzyloxyphenylboronic acid Br [870777-20-1] 526339 OH B 3-((4’-(Trifluoromethoxy)phenoxy)methyl)- OH C13H13BO3 phenylboronic acid 3-Bromo-2-(3’-methoxybenzyloxy)phenyl- MW: 228.05 O 652075 OH boronic acid B [156682-54-1] OH OH C14H12BF3O4 645850 F3CO B OH MW: 312.05 C14H14BBrO4 4-Benzyloxyphenylboronic acid 8 O OCH3 [849062-06-2] MW: 336.97 O 666920 OH Br B C H BO OH [849052-24-0] 13 13 3 4-[4’-(Trifluoromethoxy)phenoxymethyl]- MW: 228.05 O phenylboronic acid 3-((4-Chloro-3-methylphenoxy)- [146631-00-7] 8 651303 OH methyl)phenylboronic acid B C H BF O OH 680605 OH 10-Bromoanthracene-9-boronic acid 14 12 3 4 O B OH HO OH MW: 312.05 C14H14BClO3 595756 B F CO Cl [870778-97-5] 3 MW: 276.52 C14H10BBrO2 H3C O MW: 300.94 Br 3-Bromo-2-(2’-chlorobenzyloxy)-5- 4-[(4-Chloro-3-methylphenoxy)methyl]- [641144-16-3] methylphenylboronic acid phenylboronic acid 645486 OH 645931 OH 4-[(2’-Chloro-5’-(trifluoromethyl)- H3C B B OH OH C14H13BBrClO3 C14H14BClO3 H C O phenoxy)methyl]phenylboronic acid O 3 OH MW: 355.42 Br MW: 276.52 652237 B Cl Cl OH [849052-17-1] [849052-25-1] C14H11BClF3O3 F3C O

MW: 330.49 m o c . h c i r d l a - a m g i s Cl 3-Bromo-2-(3’-chlorobenzyloxy)-5- 4-Ethoxybiphenyl-4’-boronic acid [849062-05-1] methylphenylboronic acid 567531 OH B OH OH 645494 C14H15BO3 H C B 3 OH MW: 242.08 C14H13BBrClO3 Cl O H3C O MW: 355.42 Br [182344-29-2] [870778-83-9]

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2-(2’-Methoxybenzyloxy)phenylboronic 4-(4’-Chlorobenzyloxy)-3,5-dimethyl- 2-[(4’-(2-Methoxyethyl)phenoxy)methyl]- acid phenylboronic acid phenylboronic acid 657409 OH 645354 OH 658065 OH B H3C B B OH OCH3 OH OH C14H15BO4 C15H16BClO3 C16H19BO4 O O O MW: 258.08 MW: 290.55 CH MW: 286.13 Cl 3 [871125-76-7] [849062-38-0] [871126-29-3] OCH3

3-(2-Methoxybenzyloxy)phenylboronic 4-(2’-Chlorobenzyloxy)-3,5-dimethyl- 3-((4’-(2-Methoxyethyl)phenoxy)methyl)- acid phenylboronic acid phenylboronic acid 662089 OH 645435 OH 657506 OH B H3C B B OH Cl OH OH C14H15BO4 C15H16BClO3 C16H19BO4 H CO O 3

MW: 258.08 O MW: 290.55 CH3 MW: 286.13 O OCH3 [849052-15-9] [871126-26-0]

3-(4’-Methoxybenzyloxy)- 8 4-(3’-Chlorobenzyloxy)-3,5-dimethyl- 4-[(4’-(2-Methoxyethyl)phenoxy)methyl]- phenylboronic acid phenylboronic acid phenylboronic acid 666750 OH 645443 OH 652083 OH B H3C B B C H BO OH OH OH 14 15 4 H CO C15H16BClO3 Cl C16H19BO4 O 3 O

MW: 258.08 O MW: 290.55 CH3 MW: 286.13 H CO [849062-21-1] [870779-00-3] 3 4-(2’-Methoxybenzyloxy)phenylboronic

Boronic Boronic Acids acid 3-Chloro-4-(3’,5’-dimethoxybenzyloxy)- 2-[(1’,2’,3’,4’-Tetrahydro-5-naphthyloxy)- 657387 OH phenylboronic acid methyl]phenylboronic acid B OCH3 OH OH OH C14H15BO4 639516 652229 B B MW: 258.08 O OH OH C15H16BClO5 H3CO C17H19BO3 O O [871125-74-5] MW: 322.55 Cl MW: 282.14

[849062-24-4] OCH3 [849062-10-8] 4-(4’-Methoxybenzyloxy)- 8 phenylboronic acid 4-(4’-Isopropoxyphenyl)phenylboronic 4-(4-Isopentyloxyphenyl)phenylboronic 666769 OH acid acid B OH OH C14H15BO4 595179 662070 OH O B B OH OH MW: 258.08 C15H17BO3 C17H21BO3 H3CO MW: 256.10 CH3 MW: 284.16 CH3 H C O 2-(4’-Methoxybenzyloxy)phenylboronic [870717-98-9] 3 H3C O acid 4-(4’-(2-Pentyloxy)- 8 OH 657417 B 4-(4’-Propoxyphenyl)phenylboronic acid phenyl)phenylboronic acid OH OH OH C14H15BO4 595284 666815 O B B OH OH MW: 258.08 C15H17BO3 C17H21BO3 OCH3 CH3 [871125-77-8] MW: 256.10 H C MW: 284.16 3 O H C O [849062-20-0] 3 3-(3’-Methoxybenzyloxy)phenylboronic 3,5-Dimethyl-4-(3’,5’-dimethoxybenzyl- acid 4-(3,5-Dimethoxybenzyloxy)phenyl- oxy)phenylboronic acid 657395 OH boronic acid 652121 OH B H3C B OH OH OH C14H15BO4 635758 C17H21BO5 B H3CO MW: 258.08 C H BO OH MW: 316.16 O O 15 17 5 H CO CH3 H3CO 3 O [871125-75-6] MW: 288.10 OCH3

[870718-08-4] OCH3 2,4-Dibutoxyphenylboronic acid 4-(Diphenylamino)phenylboronic acid 650994 OH 3-(3,5-Dimethoxybenzyloxy)phenyl- 647292 OH B B OH OH C14H23BO4 boronic acid C18H16BNO2 MW: 266.14 H3C O O CH3 OH MW: 289.14 N 635766 B OCH3 OH [870778-89-5] C15H17BO5 [201802-67-7]

MW: 288.10 O H CO 2,6-Difluoro-3-(3’,5’-dimethoxybenzyl- [870718-09-5] 3 3-(Dansylamino)phenylboronic acid OH oxy)phenylboronic acid D0520 O H O N B 651109 F OH Pyrene-1-boronic acid C H BN O S S OH B 18 19 2 4 H3CO OH C15H15BF2O5 542873 OH MW: 370.23 F B OH MW: 324.08 O C16H11BO2 [75806-94-9] N H CO H3C CH3 [849062-01-7] 3 MW: 246.07 [164461-18-1] 2-((4-tert-Butyl-2-methylphenoxy)methyl)- 3-Bromo-5-methyl-2-(3’-methoxybenzyl- phenylboronic acid oxy)phenylboronic acid 662046 OH B 639478 OH C H BO OH H C B 18 23 3 O 3 OH C15H16BBrO4 MW: 298.18 O H3C MW: 351.00 Br

[849062-23-3] OCH3

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3-((4’-tert-Butyl-2’-methylphenoxy)- 8 4-[(2’,6’-Diisopropylphenoxy)methyl]- methyl)phenylboronic acid phenylboronic acid 666858 OH 662038 OH B H C CH B C H BO OH 3 3 OH 18 23 3 C19H25BO3 O MW: 298.18 MW: 312.21 O CH3 CH 3 CH3

4-((4-tert-Butyl-2-methylphenoxy)- 8 3-(4’-Heptyloxyphenoxymethyl)phenyl- methyl)phenylboronic acid boronic acid 680591 OH 651214 OH B B OH OH C18H23BO3 C H BO O 20 27 4 CH3(CH2)6O

MW: 298.18 MW: 342.24 O CH 3 [870778-93-1] Boronic Acids Boronic

N-Heteroarylboronic acids

2-Bromopyridine-5-boronic acid 8 2-Methoxypyridine-5-boronic acid N-Boc-pyrrole-2-boronic acid OH 666556 OH 637610 15047 OH B B B OH OH N OH C5H5BBrNO2 C6H8BNO3 C9H14BNO4 Boc MW: 201.81 Br N MW: 152.94 H3CO N MW: 211.02 [223463-14-7] [163105-89-3] [135884-31-0]

2-Chloropyridine-5-boronic acid 2-Methoxypyridine-3-boronic acid 8 1-Boc-5-bromoindole-2-boronic acid 637386 OH 684589 OH 637394 Br OH B B OH OH B C5H5BClNO2 C6H8BNO3 C13H15BBrNO4 N OH MW: 157.36 Cl N MW: 152.94 N OCH3 MW: 339.98 Boc [444120-91-6] [163105-90-6] [475102-13-7]

2-Chloropyridine-4-boronic acid 8 2,4-Dimethoxypyrimidine-5-boronic 8 1-(Phenylsulfonyl)indole-2-boronic acid HO OH OH 666513 B acid 563862 B H3CO OH N OH C5H5BClNO2 666491 C H BNO S O B 14 12 4 S N OH O MW: 157.36 N Cl C6H9BN2O4 MW: 301.13 [458532-96-2] MW: 183.96 H3CO N [342404-46-0] [89641-18-9] 2-Fluoropyridine-5-boronic acid 1-(Phenylsulfonyl)indole-3-boronic acid OH HO 639184 5-Indoleboronic acid 8 563870 OH B B OH OH C5H5BFNO2 666467 C14H12BNO4S B F N HO N MW: 140.91 C8H8BNO2 MW: 301.13 O N S [351019-18-6] MW: 160.97 H [129271-98-3] O [144104-59-6] 3-Pyridineboronic acid 1-Boc-5-methoxyindole- 8 512125 OH 6-Indoleboronic acid 8 2-boronic acid B OH H CO C5H6BNO2 666459 680516 3 OH B N HO N B N OH MW: 122.92 C8H8BNO2 H C14H18BNO5 OH Boc [1692-25-7] MW: 160.97 MW: 291.11 [147621-18-9] [290331-71-4] 4-Pyridineboronic acid HO OH 634492 B 8-Quinolineboronic acid

C5H6BNO2 542865 N MW: 122.92 N C9H8BNO2 B [1692-15-5] MW: 172.98 HO OH [86-58-8] m o c . h c i r d l a - a m g i s

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O-Heteroarylboronic acids

2-Furanboronic acid 5-Formylfuran-2-boronic acid 1,4-Benzodioxane-6-boronic acid OH 464910 OH 512346 O OH 635995 B O B O B O OH C4H5BO3 OH C5H5BO4 H OH C8H9BO4 MW: 111.89 MW: 139.90 MW: 179.97 O [13331-23-2] [27329-70-0] [164014-95-3]

3-Furanboronic acid 2-Benzofuranboronic acid 4-Dibenzofuranboronic acid 512168 HO 499943 OH 499951 B OH B O C4H5BO3 C8H7BO3 OH C12H9BO3 O B OH MW: 111.89 O MW: 161.95 MW: 212.01 HO [55552-70-0] [98437-24-2] [100124-06-9]

S-Heteroarylboronic acids

5-Bromothiophene-2-boronic acid 2-Formylthiophene-3-boronic acid 5-Acetylthiophene-2-boronic acid HO 557684 OH 499900 499927 OH B OH H3C B Br S B S C4H4BBrO2S OH C5H5BO3S H C6H7BO3S O OH Boronic Boronic Acids S MW: 206.85 MW: 155.97 O MW: 169.99 [162607-17-2] [4347-31-3] [206551-43-1]

5-Chlorothiophene-2-boronic acid 3-Formylthiophene-2-boronic acid 2-Benzo[b]thiopheneboronic acid O OH OH 499935 499919 499978 B Cl B H S S OH C4H4BClO2S OH C5H5BO3S OH C8H7BO2S S B MW: 162.40 MW: 155.97 OH MW: 178.02 [162607-18-3] [17303-83-2] [98437-23-1]

2-Thiopheneboronic acid 5-Formylthiophene-2-boronic acid 3-Benzo[b]thiopheneboronic acid HO 436836 OH 514055 O OH 512117 B OH S B S B C4H5BO2S OH C5H5BO3S H OH C8H7BO2S MW: 127.96 MW: 155.97 MW: 178.02 S [6165-68-0] [4347-33-5] [113893-08-6]

3-Thiopheneboronic acid 4-Methylthiophene-3-boronic acid 4-Dibenzothiopheneboronic acid 436844 HO 542393 HO 499986 B OH H3C B OH C4H5BO2S C5H7BO2S C12H9BO2S S B OH MW: 127.96 S MW: 141.98 S MW: 228.07 HO [6165-69-1] [177735-11-4] [108847-20-7]

2,5-Thiophenediboronic acid 5-Methylthiophene-2-boronic acid 1-Thianthreneboronic acid HO OH 470317 HO OH 512192 OH 512214 B B B H C B S 3 S S C4H6B2O4S HO OH C5H7BO2S OH C12H9BO2S2 MW: 171.78 MW: 141.98 MW: 260.14 S [26076-46-0] [162607-20-7] [108847-76-3]

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Boronate Esters Alkylboronate esters

Dichloromethyldiisopropoxyborane 4-Bromo-1-butylboronic acid catechol Hexylboronic acid pinacol ester 8 H C 324485 ester 673668 3 CH3 O O CH3 C H BO H C B C7H15BCl2O2 Cl B 513687 12 25 2 3 O O O CH3 B MW: 212.91 Cl C10H12BBrO2 Br O MW: 212.14 [62260-99-5] MW: 254.92 [86308-26-1] [142172-51-8] Diisopropoxymethylborane Benzylboronic acid pinacol ester

O CH3 283681 n-Butylboronic acid pinacol ester 8 659207 B CH O O 3 H C C H BO B 680923 3 CH3 C13H19BO2 7 17 2 H3C CH3 H3C O O CH3 MW: 144.02 C10H21BO2 H3C B MW: 218.10 O CH [86595-27-9] MW: 184.08 3 [87100-28-5] [69190-62-1] (3R)-(+)-Tetrahydrofuranylboronic acid Phenylsulfanylmethylboronic acid pinacol Boronate Esters Boronate diethanolamine ester Butyldiisopropoxyborane ester H C 376574 H 277975 568155 3 CH3 N O O CH3 O B S B C H BNO C10H23BO2 H3C B C13H19BO2S O 8 16 3 O O CH3 MW: 185.03 H MW: 186.10 MW: 250.16 O [100858-40-0] [86595-32-6] [66080-23-7]

1-Propylboronic acid catechol ester Butylboronic acid N,N,N’N’-tetramethyl- 4-(Trifluoromethoxy)benzylboronic acid 464511 l-tartaric acid diamide ester pinacol ester O CH B 3 O CH3 C9H11BO2 H C O 518379 662879 B 3 H C N CH 3 O O 3 MW: 161.99 C12H23BN2O4 C14H18BF3O3 F3CO O O H3C CH3

[40218-49-3] MW: 270.13 H3C B MW: 302.10 O N CH3 [161344-85-0] H3C [475250-46-5] Cyclopropylboronic acid pinacol ester 659851 CH3 Butylboronic acid N,N,N’N’-tetramethyl- 4-Methylbenzylboronic acid pinacol ester O CH3 B d O CH3 C9H17BO2 O CH3 -tartaric acid diamide ester 663298 B CH CH3 3 CH O MW: 168.04 594806 3 C H BO H3C 14 21 2 H C CH3 H C N 3 3 O [126689-01-8] C12H23BN2O4 MW: 232.13 O O MW: 270.13 H C B [356570-52-0] 3 O Allylboronic acid pinacol ester N CH3 [161344-84-9] H3C H C 324647 3 CH3 O CH3 C9H17BO2 B O CH MW: 168.04 3 [72824-04-5]

Alkenylboronate esters

Vinylboronic acid pinacol ester trans-3-Chloro-1-propen-1-ylboronic 8 trans-2-Cyclopropylvinylboronic acid H C 633348 3 CH3 acid pinacol ester pinacol ester O CH3 H3C CH H C C8H15BO2 B 680249 3 653942 3 CH3 O CH3 O O CH3 CH Cl B 3 MW: 154.01 C9H16BClO2 O C11H19BO2 B CH3 O CH3 [75927-49-0] MW: 202.49 MW: 194.08 [849061-99-0] Vinylboronic acid 8 Isopropenylboronic acid pinacol ester H C 2-methyl-2,4-pentanediol ester 663212 3 CH3 trans-5-Chloro-1-penten-1-ylboronic acid O CH3 673641 H3C CH3 C9H17BO2 B pinacol ester O CH3 O H C C H BO MW: 168.04 CH3 3 CH3 8 15 2 B 652067 O CH O 3 CH3 MW: 154.01 [126726-62-3] C11H20BClO2 Cl B O CH3 [4627-10-5] MW: 230.54 trans-3-Methoxy-1-propenylboronic acid [154820-95-8] trans-3-Bromo-1-propen-1-ylboronic acid pinacol ester H C pinacol ester 592935 3 CH3 trans-1-Penten-1-ylboronic acid pinacol O CH H3C CH3 3 643785 C10H19BO3 H3CO B ester O O CH3 CH3 H C Br B 3 CH3 C9H16BBrO2 O MW: 198.07 665169 CH3 O CH3 MW: 246.94 [165059-42-7] C H BO B 11 21 2 m o c . h c i r d l a - a m g i s H3C O CH3 [870777-31-4] MW: 196.09 Vinylboronic acid dibutyl ester [161395-96-6] O CH 568147 B 3

O CH3 C10H21BO2 MW: 184.08 [6336-45-4]

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(Z)-3-Hexenyl-3-boronic acid catechol 1-Phenylvinylboronic acid pinacol ester trans-4-(tert-Butyldimethylsiloxy)-1- H C ester 659193 3 CH3 buten-1-ylboronic acid O CH 3 H C 575526 C14H19BO2 B 588849 3 CH3 O O CH3 H3C CH3 O CH3 C12H15BO2 H3C B MW: 230.11 C16H33BO3Si Si B O O O CH [78782-27-1] 3 MW: 202.06 CH3 MW: 312.33 [37490-28-1] [480425-30-7] trans-2-Phenylvinylboronic acid pinacol trans-2-(Thiophen-3-yl)vinylboronic 8 ester (E)-1-Pentene-1,2-diboronic acid H C acid pinacol ester 570214 3 CH3 bis(pinacol) ester O CH3 H3C H C CH 680257 CH3 C14H19BO2 B 529907 3 3 O CH3 O H3C CH3 CH3 H C CH C12H17BO2S B MW: 230.11 C17H32B2O4 O O 3 3 O CH3 B O CH3 S B MW: 236.14 [83947-56-2] MW: 322.06 O H3C CH3 [307531-75-5] H trans-2-(1-Cyclohexenyl)vinyl- 8 1-Cyclohexen-1-ylboronic acid pinacol boronic acid pinacol ester 2-(4-Butylphenyl)vinylboronic acid H C ester 676373 3 CH3 pinacol ester O CH H3C CH 3 H3C 650277 3 C14H23BO2 B 592870 CH3 O O CH3 O CH3 CH3 B B C12H21BO2 O MW: 234.14 C H BO CH3 18 27 2 O CH3 MW: 208.10 MW: 286.22 H3C [141091-37-4] trans-3-(Cyclopentyl)propenylboronic acid pinacol ester (E)-1-Hexene-1,2-diboronic acid H C trans-6-Chloro-1-hexen-1-ylboronic acid 667013 3 CH3 bis(pinacol) ester O CH3 pinacol ester C14H25BO2 B 527602 H3C CH3 O CH3 H3C CH3 H3C CH H C CH 653950 3 MW: 236.16 C18H34B2O4 O O 3 3 O B O CH3 CH B 3 C12H22BClO2 O MW: 336.08 H3C B Cl CH3 O CH3 MW: 244.57 trans-1-Octen-1-ylboronic acid pinacol [312693-52-0] H

Boronate Boronate Esters [197313-32-9] ester H C 663050 3 CH3 trans-2-(4-Pentylphenyl)vinylboronic acid O CH3 trans-(3,3-Dimethylbuten-1-yl)boronic C14H27BO2 H3C B pinacol ester O CH3 H C acid pinacol ester MW: 238.17 592986 3 CH3 O H3C CH CH3 667277 3 [83947-55-1] C19H29BO2 B O O CH3 CH3 C12H23BO2 B MW: 300.24 O CH H3C MW: 210.12 3 trans-2-(3-(Trifluoromethyl)phenyl)- 8 vinylboronic acid pinacol ester (E)-1-Heptene-1,2-diboronic acid H C trans-1-Hexen-1-ylboronic acid pinacol 677639 3 CH3 O bis(pinacol) ester CH3 ester C H BF O F3C B H3C CH3 15 18 3 2 O CH3 529893 H3C CH3 H3C CH H C CH 663743 3 MW: 298.11 C19H36B2O4 O O 3 3 O B O CH3 CH3 C H BO H3C B B 12 23 2 O CH MW: 350.11 O 3 trans-2-(3-Methoxyphenyl)vinylboronic H3C CH3 MW: 210.12 [307531-74-4] H [126688-97-9] acid pinacol ester H C 656909 3 CH3 (E)-1-Phenyl-1,2-ethylenediboronic acid O CH3 trans-1-Hepten-1-ylboronic acid pinacol C15H21BO3 H3CO B bis(pinacol) ester O CH3 ester MW: 260.14 527572 H3C CH3 H3C CH3 H C 662992 3 CH3 [871125-68-7] C H B O O O H3C CH3 O 20 30 2 4 B O CH3 CH3 C13H25BO2 B MW: 356.07 B H3C O CH3 O CH3 MW: 224.15 Methyl (Z)-oct-2-enoate-3-boronic acid [173603-23-1] [169339-75-7] pinacol ester 540625 H3C CH3 (E)-1-(1-Hydroxycyclohexyl)ethene- H3C CH3 trans-2-(2,4-Difluorophenyl)vinylboronic C15H27BO4 O O 1,2-diboronic acid bis(pinacol) ester B O acid pinacol ester MW: 282.18 H3C CH3 H3C OCH3 527610 H3C CH3 H3C CH 664871 3 [352534-74-8] C20H36B2O5 O O H3C CH3 O B O CH3 HO CH3 C H BF O B B 14 17 2 2 O MW: 378.12 O CH3 trans-2-(4-Ethylphenyl)vinylboronic acid CH3 MW: 266.09 F F [264144-69-6] H [736987-78-3] pinacol ester H C 662798 3 CH3 Methyl (Z)-oct-2-enoate-2,3-diboronic O CH3 trans-2-(3,5-Difluorophenyl)vinyl- 8 C16H23BO2 B acid bis(pinacol) ester O CH3 CH boronic acid pinacol ester MW: 258.16 H3C 527599 H3C 3 H3C CH3 H C H C CH 669199 3 CH3 [870717-91-2] C21H38B2O6 O O 3 3 O B O CH CH3 3 B C14H17BF2O2 F B MW: 408.14 O O CH H3C CH3 MW: 266.09 3 trans-2-(3,5-Dimethoxyphenyl)- 8 [312693-51-9] O OCH3 F vinylboronic acid pinacol ester H C 676160 3 CH3 O (Z)-1,2-Diphenyl-1,2-ethylenediboronic CH3 trans-2-(3-Chlorophenyl)vinylboronic acid C16H23BO4 H3CO B O CH3 acid bis(pinacol) ester pinacol ester MW: 290.16 527580 H3C CH3 H3C CH3 H C OCH3 665533 3 CH3 C H B O O O H3C CH3 O 26 34 2 4 B O CH3 CH3 C14H18BClO2 B MW: 432.17 B O CH3 O CH3 MW: 264.56 [221006-76-4] [871125-84-7] Cl

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Allenyl- and Alkynylboronate esters

Allenylboronic acid pinacol ester 8 (2-tert-Butyl-1-ethynyl)diisopropoxy- 3-(tert-Butyldimethylsilyloxy)- 8

O CH3 678554 C B borane 1-butyn-1-ylboronic acid pinacol ester CH O 3 H C CH C9H15BO2 639192 3 3 674729 H C CH3 CH3 3 H C Si O MW: 166.03 O C H BO Si 3 O CH3 C12H23BO2 B CH3 16 31 3 H3C B O H3C O CH3 MW: 310.31 CH MW: 210.12 CH3 3 3-Methoxy-1-propyn-1-ylboronic 8 [121021-24-7] acid pinacol ester 674710 CH3 2-((tert-Butyldimethylsilanyl)- 8 H3CO O CH3 C H BO B ethynyl)boronic acid pinacol ester 10 17 3 O CH3 CH3 MW: 196.05 CH3 676659 H C CH3 3 O CH3 Si B C14H27BO2Si O CH3 MW: 266.26 CH3

Arylboronate esters Boronate Esters Boronate

Phenylboronic acid 1,3-propanediol ester 4-Nitrophenylboronic acid pinacol ester 4-Aminophenylboronic acid pinacol ester H C H C 341339 O 643890 3 CH3 518751 3 CH3 O O B CH CH O 3 3 C9H11BO2 C12H16BNO4 B C12H18BNO2 B O CH3 O CH3

MW: 161.99 MW: 249.07 O2N MW: 219.09 H2N [4406-77-3] [171364-83-3] [214360-73-3]

2-Cyanophenylboronic acid 1,3- 4-Amino-3-nitrophenylboronic acid 2,6-Difluoro-4-formylphenylboronic acid propanediol ester pinacol ester pinacol ester H C H C 653934 O 651613 3 CH3 663514 3 CH3 O F O B CH3 CH3 C10H10BNO2 O C12H17BN2O4 B C13H15BF2O3 B O CH3 O CH3 MW: 187.00 CN MW: 264.09 MW: 268.06 H H2N F [172732-52-4] [833486-94-5] NO2 [870717-92-3] O

4-Fluorophenylboronic acid neopentyl- Phenylboronic acid pinacol ester 3-Cyanophenylboronic acid pinacol ester

H3C CH H C glycol ester 647098 3 578401 3 CH3 O O CH3 CH CH3 B 3 632686 C12H17BO2 O CH C13H16BNO2 B O CH3 3 O CH3 B C11H14BFO2 O MW: 204.07 MW: 229.08 CN MW: 208.04 F [24388-23-6] [214360-46-0] [225916-39-2] 2-Hydroxyphenylboronic acid pinacol 4-Cyanophenylboronic acid pinacol ester H C Phenylboronic acid neopentylglycol ester ester 527556 3 CH3 O CH CH3 3 H3C CH3 B 632678 522554 C13H16BNO2 O O CH3 O CH3 B CH3 C H BO O C H BO B MW: 229.08 11 15 2 12 17 3 O CH NC 3 [171364-82-2] MW: 190.05 MW: 220.07 OH [5123-13-7] [269409-97-4] 6-Bromo-2-fluoro-3-methoxyphenyl- (3-Cyanophenyl)boronic acid 8 3-Hydroxyphenylboronic acid pinacol boronic acid pinacol ester H C neopentylglycol ester ester 667560 3 CH3 Br O CH CH H C 3 651168 3 3 CH3 C H BBrFO B 522562 13 17 3 O CH O CH3 O 3 CH B 3 C12H14BNO2 O C12H17BO3 B MW: 330.99 F O CH3 MW: 215.06 MW: 220.07 OCH3 [214360-45-9] CN [214360-76-6] OH 2-Formylphenylboronic acid pinacol 8 2,4-Difluorophenylboronic acid pinacol 4-Hydroxyphenylboronic acid pinacol ester H C ester ester 683817 3 CH3 O CH3 H3C H C CH3 3 CH3 C H BO B 632694 522570 13 17 3 O O O CH3 CH3 CH B 3 MW: 232.08 H C12H15BF2O2 O C12H17BO3 B CH3 O CH3 MW: 240.05 [380151-85-9] O F F MW: 220.07 HO [288101-48-4] [269409-70-3] 3-Carboxyphenylboronic acid pinacol 4-Chlorophenylboronic acid pinacol ester 2-Aminophenylboronic acid pinacol ester ester H C H3C CH H C 3 CH3 632724 3 576557 3 CH3 574694 O O O CH CH CH3 3 3 B C12H16BClO2 B C12H18BNO2 B C13H17BO4 O O CH3 O CH CH3 MW: 238.52 MW: 219.09 3 MW: 248.08 Cl NH2 m o c . h c i r d l a - a m g i s [195062-61-4] [191171-55-8] [269409-73-6] HO O

3-Nitrophenylboronic acid pinacol ester 3-Aminophenylboronic acid pinacol ester 4-Carboxyphenylboronic acid pinacol

H3C CH H C 632708 3 574686 3 CH3 ester O O CH3 CH3 H C C H BNO B 3 CH3 12 16 4 O C12H18BNO2 B 513490 CH3 O CH3 O CH3 MW: 249.07 MW: 219.09 C13H17BO4 B O CH3 NO [68716-48-3] 2 [210907-84-9] NH2 MW: 248.08 HO [180516-87-4] O

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2-(Formylamino)phenylboronic acid 3-Methoxycarbonylphenylboronic acid Phenylboronic acid 8 pinacol ester pinacol ester N-butyldiethanolamine ester H C H3C CH 3 CH3 595098 3 594652 680478 O O N CH3 O CH B CH3 3 C H BNO B C H BO B C14H22BNO2 13 18 3 O 14 19 4 O CH O CH3 3 MW: 247.14 MW: 247.10 NH MW: 262.11

[480425-36-3] H O [480425-35-2] H3CO O 2-Ethoxycarbonylphenylboronic acid 3-(Formylamino)phenylboronic acid 4-Methoxycarbonylphenylboronic acid pinacol ester H C pinacol ester pinacol ester 570168 3 CH3 O H3C CH H C CH3 595209 3 594768 3 CH3 C15H21BO4 B O O O CH3 CH3 CH3 B O CH3 C13H18BNO3 O C14H19BO4 B MW: 276.14 CH3 O CH3 O MW: 247.10 MW: 262.11 H3CO [269409-99-6] [480425-37-4] HN O [171364-80-0] O H 3-Ethoxycarbonylphenylboronic acid 4-(Formylamino)phenylboronic acid 2-Acetamidophenylboronic acid pinacol pinacol ester H C pinacol ester ester 527548 3 CH3 O H C H C CH3 578746 3 CH3 594989 3 CH3 C H BO B 15 21 4 O O O CH3 CH3 CH3 C13H18BNO3 B C14H20BNO3 B MW: 276.14 O O CH O CH MW: 247.10 3 MW: 261.12 3 [269410-00-6] H N NH H3C O O H [480424-94-0] [380430-61-5] H C O 3 4-Ethoxycarbonylphenylboronic acid 4-Hydroxy-3-methoxyphenylboronic acid 3-Acetamidophenylboronic acid pinacol pinacol ester H C pinacol ester ester 527564 3 CH3 O CH H C H3C CH 3 3 CH3 3 C H BO B 518786 578088 15 21 4 O O O CH3 CH3 CH3 B H3C O C13H19BO4 B C14H20BNO3 O MW: 276.14 O CH3 CH3 [195062-62-5] O MW: 250.10 HO MW: 261.12

Boronate Boronate Esters HN CH [269410-22-2] OCH3 [480424-93-9] 3 O 4-Acetoxy-3-methoxyphenylboronic acid 2-(Methanesulfonylamino)phenylboronic 4-Acetamidophenylboronic acid pinacol pinacol ester H C acid pinacol ester ester 594474 3 CH3 O H C H C CH3 636045 3 CH3 518778 3 CH3 C15H21BO5 B O O O O CH3 CH3 CH3 C13H20BNO4S B C14H20BNO3 B MW: 292.14 H C O O CH3 O O CH3 3 MW: 297.18 MW: 261.12 OCH3 NH H3C N H O S [380430-60-4] CH3 [214360-60-8] O 4-(Succinylamino)phenylboronic acid 3-(Methanesulfonylamino)phenylboronic 2-Bromophenylboronic acid 8 pinacol ester

acid pinacol ester N-butyldiethanolamine ester 578762 H3C CH3 O H3C CH CH3 3 684570 O C H BNO 636037 N CH3 16 22 5 B O B O O CH3 CH3 C13H20BNO4S B C14H21BBrNO2 O MW: 319.16 HO O CH3 N Br H MW: 297.18 MW: 326.04 [480424-98-4] O HN CH [305448-92-4] S 3 O O 3-Bromophenylboronic acid 8 3-(Pyrrolidine-1-carbonyl)phenyl- 8 4-(Methanesulfonylamino)phenylboronic N-butyldiethanolamine ester boronic acid pinacol ester

H3C CH3 acid pinacol ester 680486 O N CH 680222 B 3 O O H C CH3 3 CH3 C H BBrNO C H BNO B 632716 14 21 2 O 17 24 3 O O N CH3 CH3 C13H20BNO4S B MW: 326.04 MW: 301.19 O O O CH3 Br MW: 297.18 S H3C N [616880-14-9] H 4-Bromophenylboronic acid 8 4-(Morpholine-4-carbonyl)phenyl- 8 N-butyldiethanolamine ester boronic acid pinacol ester

H3C CH 2-Acetoxyphenylboronic acid pinacol 680494 O N CH 677809 3 B 3 O CH3 ester C14H21BBrNO2 O C17H24BNO4 B O O CH3 H C Br 570184 3 CH3 MW: 326.04 MW: 317.19 N O CH3 O B [656239-38-2] C14H19BO4 O CH3 4-Hydroxy-3,5-dimethylphenylboronic MW: 262.11 O acid pinacol ester 2-(tert-Butoxycarbonyloxy)phenylboronic [480424-68-8] H3C O H C 518794 3 CH3 acid pinacol ester O CH3 H3C CH3 3-Acetoxyphenylboronic acid pinacol C14H21BO3 H3C B 570222 O CH3 O CH3 ester MW: 248.13 C17H25BO5 B HO O CH3 H3C CH CH3 570192 3 [269410-25-5] MW: 320.19 O O CH3 C14H19BO4 B [480424-71-3] O O O CH3 MW: 262.11 3,5-Dimethoxyphenylboronic acid pinacol [480424-69-9] H3C O ester H C O 633909 3 CH3 3-(tert-Butoxycarbonyloxy)phenylboronic O CH3 4-Acetoxyphenylboronic acid pinacol C14H21BO4 H3CO B acid pinacol ester O CH3 H C MW: 264.13 565822 3 CH3 ester O CH3 H C OCH3 B 3 CH3 [365564-07-4] C17H25BO5 570206 O CH3 O CH3 C14H19BO4 B MW: 320.19 O O CH MW: 262.11 3 [480438-74-2] O O H3C O [480424-70-2] O

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4-(tert-Butoxycarbonyloxy)phenylboronic 2,4,6-Triisopropylphenylboronic 8 4-(Benzyloxy)phenylboronic acid pinacol acid pinacol ester acid dimethyl ester ester

H C CH H3C CH 565946 3 CH3 682683 H3C 3 594148 3 OCH3 O O CH CH3 B 3 B C H BO B C17H25BO5 17 29 2 OCH3 C19H23BO3 O O O CH3 CH3 MW: 276.22 H3C CH3 MW: 320.19 O O MW: 310.20 O [480438-75-3] [145434-22-6] CH3 CH3

4-(4-Morpholinomethyl)phenyl- 8 4-(Piperidine-1-carbonyl)phenyl- 8 2-(p-Toluenesulfonylamino)phenyl- boronic acid pinacol ester boronic acid pinacol ester boronic acid pinacol ester

H C H3C CH H C 680230 3 CH3 677787 3 636290 3 CH3 O O O CH CH3 CH3 C H BNO 3 C18H26BNO3 B B 17 26 3 B O CH C19H24BNO4S O O O CH3 3 CH3 N MW: 315.21 N MW: 303.20 MW: 373.27 NH [364794-79-6] O [796061-07-9] O S O

CH3 2-(N-Boc-amino)phenylboronic acid 1,4-Benzenediboronic acid bis(pinacol) pinacol ester ester 3-(p-Toluenesulfonylamino)phenyl- H C H C 594865 3 CH3 663816 3 CH3 boronic acid pinacol ester O O Esters Boronate CH3 CH3 H C B B 3 CH3 C17H26BNO4 O C18H28B2O4 O 636312 CH3 CH3 O H C CH3 MW: 330.03 3 O B MW: 319.20 NH B C19H24BNO4S O H C CH3 3 O [159624-15-4] O O [99770-93-1] H3C H C MW: 373.27 3 CH3 NH [796061-08-0] S 2-(Benzyloxy)phenylboronic acid pinacol O O 3-(N-Boc-amino)phenylboronic acid ester 4-(p-Toluenesulfonylamino)phenyl- H C pinacol ester 594245 3 CH3 boronic acid pinacol ester O CH H C 3 3 CH3 C H BO B H3C CH 578843 19 23 3 O CH 636304 3 O 3 O CH3 CH C H BNO B MW: 310.20 3 17 26 4 O O C19H24BNO4S B CH3 O O O CH3 MW: 319.20 S MW: 373.27 N [330793-09-4] HN O H [674776-54-6] H3C O 3-(Benzyloxy)phenylboronic acid pinacol ester 1,1’-Ferrocenediboronic acid bis(pinacol) H C 4-(N-Boc-amino)phenylboronic acid 594369 3 CH3 ester O CH3 pinacol ester C H BO B CH3 19 23 3 O CH 643750 3 O CH3 H C B 562351 3 CH3 MW: 310.20 C H B O Fe 22 32 2 4 O CH3 O CH3 Fe CH3 O H C O CH3 C17H26BNO4 B MW: 437.95 3 O O CH3 B MW: 319.20 H3C O O N [737776-93-1] CH3 [330793-01-6] H

N-Heteroarylboronate esters

3-Pyridineboronic acid 1,3-propanediol 2-Bromopyridine-3-boronic acid pinacol 2-Nitropyridine-5-boronic acid 8 ester ester pinacol ester

H C H3C CH 631566 O 654264 3 CH3 674958 3 B O O CH CH3 O 3 C H BN O B C8H10BNO2 C11H15BBrNO2 B 11 15 2 4 O O CH3 CH3 MW: 162.98 N MW: 283.96 MW: 250.06 N Br O2N N [131534-65-1] [452972-12-2] 3-Pyridineboronic acid pinacol ester H C 4-Pyrazoleboronic acid pinacol ester 5-Bromopyridine-3-boronic acid 8 576565 3 CH3 O CH CH3 H3C 3 pinacol ester C H BNO B 525057 11 16 2 O O CH3 CH3 H C 3 CH3 MW: 205.06 C9H15BN2O2 B O CH3 674567 N O CH3 MW: 194.04 N C11H15BBrNO2 Br B [329214-79-1] N O CH3 H [269410-08-4] MW: 283.96 N [452972-13-3] 4-Pyridineboronic acid pinacol ester 3-Pyridineboronic acid neopentylglycol 578770 H3C CH3 H3C CH3 O O ester 6-Chloropyridine-3-boronic acid pinacol C11H16BNO2 B 642622 CH3 ester MW: 205.06 O CH3 B H3C CH C10H14BNO2 O 659843 3 [181219-01-2] N O CH3 N B MW: 191.03 C11H15BClNO2 O CH3 2-Aminopyridine-5-boronic acid pinacol [845885-86-1] MW: 239.51 Cl N [444120-94-9] ester H C 1-Methylpyrazole-4-boronic acid pinacol 640379 3 CH3 O CH

m o c . h c i r d l a - 3 a m g i s ester 2-Fluoropyridine-5-boronic acid pinacol C11H17BN2O2 B O CH3 CH3 H3C 595314 ester MW: 220.08 H2N N CH3 O H C CH 3 CH3 C10H17BN2O2 B O 3 592544 [827614-64-2] O CH3 MW: 208.07 C H BFNO B N 11 15 2 O CH N 3

[761446-44-0] CH3 MW: 223.05 F N [444120-95-0]

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3,5-Dimethylpyrazole-4-boronic acid 1-Boc-pyrazole-4-boronic acid pinacol 5-Methylpyridine-2-boronic acid pinacol ester ester N-phenyldiethanolamine ester

CH3 H C CH3 H3C 3 636010 H3C 632732 648825 CH3 CH3 O O O CH3 N B C11H19BN2O2 CH3 C14H23BN2O4 B O C16H19BN2O2 H3C B O O N MW: 222.09 MW: 294.15 MW: 282.15 N N N CH3 N [857530-80-4] H [552846-17-0] [872054-54-1] O O 2-Methoxypyridine-5-boronic acid pinacol 7-Chloroquinoline-4-boronic acid pinacol 4-Methylpyridine-2-boronic acid ester ester N-phenyldiethanolamine ester H C 636029 3 CH3 658596 H3C CH3 648841 CH3 O H3C CH3 CH3 B O O O C12H18BNO3 O CH C15H17BClNO2 B C16H19BN2O2 3 N B O N MW: 235.09 H3CO N MW: 289.56 MW: 282.15

[445264-61-9] [871125-83-6] Cl N [849100-03-4]

2,4-Dimethoxypyrimidine-5-boronic 8 2-Pyridineboronic acid N-phenyl- 6-Methoxypyridine-2-boronic acid acid pinacol ester diethanolamine ester N-phenyldiethanolamine ester H C 683841 3 CH3 647284 O 649155 O H3CO O CH3 N B H3CO N B C12H19BN2O4 B C15H17BN2O2 O N C16H19BN2O3 N N O CH3 O MW: 266.10 MW: 268.12 MW: 298.14 H3CO N [662138-96-7] [872054-59-6] 6-(Piperazin-1-yl)pyridine-3-boronic acid pinacol ester 3-Quinolineboronic acid pinacol ester 1-Benzylpyrazole-4-boronic acid pinacol

H3C CH H C 654329 3 647950 3 CH3 ester O O CH3 CH B 3 CH3 C12H21BN2O2 O C15H18BNO2 B 636002 H3C CH3 O CH3 CH3 O MW: 236.12 MW: 255.12 CH N N N C16H21BN2O2 B O 3 [871125-86-9] HN [171364-85-5] MW: 284.16 N Boronate Boronate Esters [761446-45-1] N 1,3,5-Trimethyl-1H-pyrazole-4- 8 6-Quinolineboronic acid pinacol ester CH boronic acid pinacol ester 641618 H3C 3 O CH3 H3C 654396 H3C C15H18BNO2 B 6-(Piperidin-1-yl)pyridine-3-boronic 8 CH3 H C O O 3 CH3 C12H21BN2O2 H3C BO MW: 255.12 N acid pinacol ester

H3C CH3 MW: 236.12 N [406463-06-7] 676519 CH3 O N CH3 B CH3 C16H25BN2O2 O 4-Isoquinolineboronic acid pinacol ester CH3 MW: 288.19 N N 2-Acetamidopyridine-5-boronic acid 8 648795 H3C CH3 [852228-08-1] H3C CH3 pinacol ester C H BNO O O 15 18 2 B H C 683892 3 CH3 MW: 255.12 9H-Carbazole-2-boronic acid pinacol ester O CH3 N C13H19BN2O3 B [685103-98-4] 655724 CH3 O O CH3 O MW: 262.11 B CH3 H3C N N C18H20BNO2 N O H H CH3 [904326-87-0] 1-Methylindole-5-boronic acid pinacol MW: 293.17 H3C ester [871125-67-6] CH 1-(Ethoxycarbonylmethyl)-1H- 8 640395 H3C 3 O H3C pyrazole-4-boronic acid pinacol ester C15H20BNO2 B 1-Boc-indole-5-boronic acid pinacol ester H3C O H C CH3 683566 3 MW: 257.14 N 640387 H C CH3 CH3 3 O CH3 O C H BN O CH [837392-62-8] C H BNO H3C 13 21 2 4 BO 3 19 26 4 B O MW: 280.13 MW: 343.23 H3C N N N [864754-16-5] 6-(Morpholin-4-yl)pyridine-3-boronic acid [777061-36-6] O O CH3 O O pinacol ester H C 654310 3 CH3 1-(Phenylsulfonyl)indole-3-boronic acid O CH3 1-Isobutylpyrazole-4-boronic acid pinacol C15H23BN2O3 B pinacol ester O CH3 CH ester MW: 290.17 654280 3 CH N N H3C 3 CH3 O CH 642614 H3C [485799-04-0] C20H22BNO4S O 3 CH3 B O O CH C13H23BN2O2 B O 3 MW: 383.27 2-(1-Piperazinyl)pyridine-4-boronic acid N MW: 250.14 N [870717-93-4] [827614-66-4] N pinacol ester O S H3C O H3C CH3 CH3 654361 H3C CH3 O O 6-(4-Boc-piperazin-1-yl)pyridine-3-boronic C15H24BN3O2 B 5-Indoleboronic acid pinacol ester MW: 289.18 acid pinacol ester CH H C 578835 H3C 3 [871125-87-0] N N 654337 3 CH3 O O H3C HN CH3 C14H18BNO2 B C H BN O B H C O 20 32 3 4 O CH MW: 243.11 3 3 N MW: 389.30 N N H [269410-24-4] 6-Methylpyridine-2-boronic acid [496786-98-2] O N N-phenyldiethanolamine ester O

648817 O

H3C N B C16H19BN2O2 O N MW: 282.15 [872054-59-6]

TO ORDER: Contact your local Sigma-Aldrich office (see back cover), sigma-aldrich.com or visit sigma-aldrich.com/chemicalsynthesis. 25

O-Heteroarylboronate esters

3,5-Dimethylisoxazole-4-boronic acid 3-Furanboronic acid pinacol ester 5-Methylfuran-2-boronic acid 8 CH pinacol ester 575054 H3C 3 pinacol ester O CH3 CH3 CH3 643882 H3C C10H15BO3 B CH 680109 O CH3 O 3 H C B CH O 3 O 3 O C H BNO CH3 MW: 194.04 C11H17BO3 11 18 3 H3C B O CH3 [248924-59-6] O MW: 208.06 H3C MW: 223.08 N [832114-00-8] O CH3

S-Heteroarylboronate esters

5-Methylthiophene-2-boronic acid 2,2’−Bithiophene-5-boronic acid pinacol 2,2’−Bithiophene-5,5’-diboronic acid pinacol ester ester bis(pinacol) ester CH CH H C CH 655074 O 3 578878 O 3 647020 3 O O 3 H C CH CH H C CH 3 S B 3 S S B 3 3 B S S B 3 C H BO S O C H BO S O C H B O S O O 11 17 2 CH3 14 17 2 2 CH3 20 28 2 4 2 H3C CH3 MW: 224.13 H3C MW: 292.22 H3C MW: 418.19 CH3 H3C [476004-80-5] [479719-88-5] [239075-02-6]

4-Methylthiophene-3-boronic 8 2,2’:5’,2’’-Terthiophene-5-boronic acid 5’-Hexyl-2,2’-bithiophene-5-boronic acid acid pinacol ester pinacol ester pinacol ester TrifluoroborateSalts CH H C 3 CH3 CH3 680001 3 645141 O 632961 H C O CH3 CH 3 CH O S S S B 3 S S B 3 C11H17BO2S CH3 C H BO S O C H BO S O H3C B O 18 19 2 3 CH3 20 29 2 2 CH3 MW: 224.13 MW: 374.35 H3C MW: 376.38 H3C S [849062-17-5] [579503-59-6]

Trifluoroborate Salts Alkyltrifluoroborates

Potassium (bromomethyl)- 8 Potassium isopropyltrifluoroborate Potassium (3,3-dimethylbutyl)- 8 trifluoroborate 667153 trifluoroborate H3C BF3K

681342 C3H7BF3K CH3 667161 BrCH2BF3K H3C BF3K CH BBrF K MW: 149.99 C H BF K H3C 2 3 6 13 3 CH3 MW: 200.84 MW: 192.07 [888711-44-2] Potassium butyltrifluoroborate 660094 Potassium benzyltrifluoroborate H3C BF3K Potassium methyltrifluoroborate C4H9BF3K 563056 BF K 637890 MW: 164.02 C H BF K 3 H3C BF3K 7 7 3 CH3BF3K [444343-55-9] MW: 198.03 MW: 121.94 [329976-73-0] [13862-28-7] Potassium sec-butyltrifluoroborate 667145 Potassium phenethyltrifluoroborate BF3K H3C Potassium cyclopropyl- 8 C4H9BF3K CH3 563099 BF3K trifluoroborate MW: 164.02 C8H9BF3K 662984 MW: 212.06 BF3K C3H5BF3K Potassium cyclopentyltrifluoroborate [329976-74-1] MW: 147.98 666017 BF3K C5H9BF3K Potassium allyltrifluoroborate MW: 176.03 659274 BF3K C3H5BF3K MW: 147.98 m o c . h c i r d l a - a m g i s

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Alkenyltrifluoroborates

Potassium vinyltrifluoroborate Potassium trans-styryltrifluoroborate

655228 BF3K 576158 BF3K

C2H3BF3K C8H7BF3K MW: 133.95 MW: 210.05 [13682-77-4] [201852-49-5]

Potassium trans-3-methoxy-1- 8 Potassium trans-1-decenyltrifluoroborate

propenyltrifluoroborate 637882 H3C BF3K 683590 C H BF K H3CO BF3K 10 19 3 C4H7BF3KO MW: 246.16 MW: 178.00 [479678-72-3]

Aryltrifluoroborates

Potassium 2,6-difluorophenyl- Potassium 4-fluorophenyltrifluoroborate Potassium 4-carboxyphenyltrifluoro- trifluoroborate 592846 BF3K borate

F BF3K 597929 C6H4BF4K F 657069 BF3K HO C6H3BF5K MW: 202.00 C7H5BF3KO2 MW: 219.99 F MW: 228.02 O [267006-25-7] Potassium phenyltrifluoroborate [850623-38-0] 563951 BF3K

Potassium 2,4-difluorophenyl- C6H5BF3K Potassium 3,4-(methylenedioxy)phenyl- trifluoroborate MW: 184.01 trifluoroborate 656992 BF3K [153766-81-5] 659754 O BF3K O C6H3BF5K F F C7H5BF3KO2 MW: 219.99 Potassium 3-hydroxyphenyl- MW: 228.02 [871231-41-3] trifluoroborate [871231-46-8] 659746 BF3K Trifluoroborate Salts Trifluoroborate Potassium 2-bromophenyltrifluoroborate C6H5BF3KO Potassium o-tolyltrifluoroborate OH 576107 BF3K MW: 200.01 576123 BF3K

C6H4BBrF3K Br [871231-45-7] C7H7BF3K CH3 MW: 262.90 MW: 198.03 [480445-38-3] Potassium 4-(trifluoromethyl)phenyl- [274257-34-0] trifluoroborate Potassium 4-bromophenyltrifluoroborate 576131 BF3K Potassium p-tolyltrifluoroborate BF K BF K 571547 3 C7H4BF6K F3C 571555 3

C6H4BBrF3K Br MW: 252.01 C7H7BF3K H3C MW: 262.90 [166328-08-1] MW: 198.03 [374564-35-9] [216434-82-1] Potassium 3-formylphenyltrifluoroborate Potassium 4-chlorophenyltrifluoroborate 657093 BF3K Potassium 2-methoxyphenyltrifluoro- BF K 657077 3 C7H5BF3KO borate H O BF K C6H4BClF3K Cl MW: 212.02 654930 3

MW: 218.45 [871231-44-6] C7H7BF3KO OCH3 [661465-44-7] MW: 214.03 Potassium 4-formylphenyltrifluoroborate [236388-46-8] Potassium 3-nitrophenyltrifluoroborate 576093 BF3K

BF3K H 571598 C7H5BF3KO Potassium 3-methoxyphenyltrifluoro- O C6H4BF3KNO2 MW: 212.02 borate NO2 MW: 229.01 [374564-36-0] 576115 BF3K

[192863-40-4] C7H7BF3KO Potassium 3-carboxyphenyltrifluoro- MW: 214.03 OCH3 Potassium 3-fluorophenyltrifluoroborate borate [438553-44-7] 659770 BF3K 659789 BF3K

C6H4BF4K C7H5BF3KO2 Potassium 4-methoxyphenyltrifluoro- F MW: 202.00 MW: 228.02 HO O borate [267006-24-6] [850313-91-6] 579068 BF3K

C7H7BF3KO H3CO MW: 214.03 [192863-36-8]

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Potassium 4-(hydroxymethyl)phenyl- Potassium 4-acetylphenyltrifluoroborate Potassium 2-naphthalenetrifluoroborate trifluoroborate 657050 BF3K 657018 BF3K

H3C 659762 BF3K C8H7BF3KO C10H7BF3K HO O C7H7BF3KO MW: 226.05 MW: 234.07 MW: 214.03 [252726-24-2] [668984-08-5]

Potassium 4-(methylthio)phenyltri- Potassium 2,6-dimethylphenyltrifluoro- Potassium 4-tert-butylphenyltrifluoro- fluoroborate borate borate 657115 BF3K 592943 CH3 654728 BF3K BF3K C7H7BF3KS H3CS C8H9BF3K C10H13BF3K MW: 230.10 MW: 212.06 CH3 MW: 240.11 [871231-43-5] [423118-47-2] Potassium 2,6-dimethoxyphenyltrifluoro- Potassium 3,5-bis(trifluoromethyl)phenyl- borate trifluoroborate 657085 OCH3 BF3K F C BF K 571563 3 3 C8H9BF3KO2 OCH3 C8H3BF9K MW: 244.06 MW: 320.00 CF3 [871231-42-4] [166328-09-2] TrifluoroborateSalts S-Heteroaryltrifluoroborates

Potassium 3-thiophenetrifluoroborate Potassium 5-methyl-2-thiophene 571571 BF3K trifluoroborate

C4H3BF3KS S 654949 H3C S BF3K MW: 190.04 C5H5BF3KS [192863-37-9] MW: 204.06 [871231-40-2] m o c . h c i r d l a - a m g i s

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