Organic Chemistry Acronyms

Not included: peptide protecting groups, biochemical abbreviations.

Ac Acetyl (CH3C=O) acac Acetylacetonate (ligand) N N AIBN Azobis(isobutyronitrile)--radical initiator NC CN 9-BBN-H 9-Borabicyclo[3.3.1]nonane AIBN H bda Benzylidene Acetone B O O BHT Butylated hydroxy toluene (2,6-di-t-butyl-4-methylphenol) BINALH Lithium 2,2'-dihydroxy-1,1'-binaphthylethoxyaluminum hydride O O BINAP 2,2'-Bis(diphenylphosphino)-1,1'-binaphthyl 9-BBN bipy (bpy) 2,2'-bipyridyl Crown-4

BMS Borane Dimethyl Sulfide O Cl-S-NCO Boc t-Butyloxycarbonyl (COtC4H9) O O BOM Benzyloxymethyl (PhCH OCH -alcohol protection) SO H 2 2 3 CSI CSA Bs Brosylate (p-BrC6H4SO2) BSA O, N-Bistrimethylsilyl Acetamide Bz Benzoyl (caution: sometimes used for benzyl) O N(CH3)2 Bn Benzyl NC Cl BTAF Benzyltrimethylammonium Fluoride CAN Ceric Ammonium Nitrate NC Cl N O Cbz Carbobenzyloxy (BnOC=O) DMAP DDQ cod Cyclooctadiene A OAc cO COT Cyclooctatetraene I Cp Cyclopentadienyl O OAc Cp* Pentamethylcyclopentadienyl O DHP O 12-Crown-4 1,4,7,10-Tetraoxacycododecane DMP CSA Camphorsulfonic Acid CSI Chlorosulfonyl Isocyanate CTAB Cetyltrimethylammonium bromide N DA Diels-Alder Reaction N N=C=N DABCO DABCO 1,4-Diazabicyclo[2.2.2]octane DCC

DAST (Diethylamino)sulfur trifluoride Et2NSF3 dba Dibenzylideneacetone N N

DBN 1,5-Diazabicyclo[4.3.0]non-5-ene N N DBU 1,8-Diazabicyclo[5.4.0]undec-7-ene DBN DBU DCA 1,9-Dicyanoanthracene H O DCC Dicyclohexyl Carbodiimide PPh2 DDQ 2,3-Dichloro-5,6-dicyano-1,4-benzoquinone PPh O 2 O DDT 1,1-Bis(p-chlorophenyl)-2,2,2-trichloroethane H DHP de Diastereomeric excess DIOP OH DEAD(CAT) Diethyl Azodicarboxylate O OiPr O O DET Diethyl Tartrate iPrO DHP Dihydropyran (alcohol protection) OH O DIPT DMDO DIBAL (DIBAH) Diisobutylaluminum Hydride

1 Diglyme Diethylene glycol dimethyl ether - Dimsyl Methylsulfinylmethide (MeS(O)CH2 DIOP DIPT Diisopropyl tartrate diphos (dppe) 1,2-Bis(diphenylphosphino)ethane

DHP Dihydropyran (O-protection) N Me N DMAc N,N-Dimethylacetamide (solvent) N N 2 C DMAD Dimethyl Acetylenedicarboxylate O N DMPU EDCI DMAP 4-Dimethylaminopyridine (base catalyst) CO CO DMDO Dimethyldioxirane Fe DME 1,2-Dimethoxyethane (glyme, solvent) Fp DMF Dimethylformamide (solvent) DMP Dess-Martin Periodinane .O CH O DMPU N,N'-Dimethyl-N,N'-propylene urea DMSO Dimethyl Sulfoxide (solvent) Galvinoxyl N DMSO2 Dimethyl Sulfone NMe2 N O=P + NMe DMTSF Dimethyl(methylthio)sulfonium tetrafluoroborate X N N 2 NMe2 O DNP Dinitrophenylhydrazine HMPA N HATU (X = N) DNPBA 2,4-Dinitroperbenzoic acid HBTU (X = CH) dppb 1,4-Bis(diphenylphosphino)butane dppe (diphos) 1,2-Bis(diphenylphosphino)ethane dppf Bis(diphenylphosphino)ferrocene N OH dppp 1,3-Bis(diphenylphosphino)propane N I E Entgegen (opposite, trans) N O E Methoxycarbonyl CO CH 2 3 HBT OH O EDCI Ethyl Dimethylaminopropyl Carbodiimide O EDTA Ethylenediaminetetraacetic acid IBX ee Enantiomeric Excess EE 1-Ethoxyethoxy (alcohol protection) )2 BH en Ethylene Diamine

FC Friedel-Crafts Reaction Ipc2BH Fmoc 9-Fluorenylmethoxycarbonyl Fp Cyclopentadienyldicarbonylferrate Glyme 1,2-Dimethoxyethane Galvinoxyl Radical trap HATU HBT Hydroxybenzotriazole

HMDS Hexamethyldisilazide (Me3Si)2NH HMPA,HMPT Hexamethylphosphorictriamide (solvent, cosolvent) HOBT Hydroxybenzotriazole HSAB Hard-Acid-Soft-Base IBX o-Iodoxybenzoic acid Im Imidazolyl S Ipc BH Bisisopinocampheylborane S 2 MeO P P OMe KDA Potassium Diisopropylamide S S Lawesson LAH Lithium Aluminum Hydride (LiAlH4) Lawesson

2 LDA Lithium Diisopropylamide LDMAN Lithium N,N-Dimethylaminonaphthalenide LFER Linear Free Energy Relationship

LHMDS Lithium Hexamethyldisilazide (LiN(SiMe3)2) LICA Lithium N-isopropylcyclohexylamide LICKOR Lithium-potassium alkoxide reagents LIDBB Lithium 4,4'-di-t-butylbiphenylide LiTMP Lithium Tetramethylpiperidide LI+ LTA Lead Tetraacetate (Pb(OAc)4) MA Maleic Anhydride Mander Reag LiDBB MCPBA meta-Chloroperoxybenzoic Acid MEM $-Methoxyethoxymethyl (CH OCH CH O-CH -) 3 2 2 2 Li N Mes Mesityl (2,4,6-trimethylphenyl) N Li MOM Methoxymethyl (CH3OCH2-, alcohol protection). LDA LiTMP MoOPH MoO5@Py@HMPA (oxidizing agent) N Li+ O Ms Methanesulfonyl (Mesyl, CH3SO2) MTPA "-Methoxy-"-trifluoromethylphenylacetic acid (Mosher) MeO CN Mander reagent MTM Methylthiomethyl CH3-S-CH2- (alcohol protection) LDMAN MVK Methyl Vinyl Ketone (3-Butene-2-one) NBA N-Bromoacetamide NBS, NCS N-Bromo, N-Chlorosuccinimide Nf Nonaflate (C F SO ) 4 9 2 Cl O O O NIS N-Iodosuccinimide OOH Mo NMO N-Methylmorpholine-N-oxide O O O Py OP(NMe2)3 NMP N-Methylpyrrolidone; solvent MCPBA MoOPH Ns p-Nitrobenzenesulfonyl PBB, PCB Polybrominated, Polychlorinated Biphenyls PCC Pyridinium chlorochromate PDC Pyridinium dichromate O O O PG Prostaglandins N N CH phen 1,10-Phenanthroline Br 3 NMP PhthN Phthalimido NBS PMDTA N,N,N',N'',N''-pentamethyldiethylenetriamine N N N PMB p-Methoxybenzyl N+ - Cl-CrO3 PMDTA H PMP p-Methoxyphenyl PCC PNB para-Nitrobenzoate PPA Polyphosphoric Acid O PPTS Pyridinium p-Toluenesulfonate Ph2P N t PTAD N-Phenyl-1,2,4-triazolinedione PHOX Bu PTC Phase Transfer Catalyst O Cl Me3Si Piv Pivaloyl SEM-Cl Py Pyridine; Solvent, base, catalyst RT Room Temperature SEM 2-Trimethylsilylethoxymethoxy (alcohol protection)

SES Trimethylsilylethylsulfonyl (amine prot. SO2CH2CH2SiMe3)

Sia2BH Disiamylborane (Me2CHMeCH)2BH

3 TASF Tris(dimethylamino)sulfonium difluorotrimethylsilicate TBAF Tetra-n-butylammonium fluoride TBDMS t-Butyldimethylsilyl (alcohol protection) TBDPS t-Butyldiphenylsilyl (alcohol protection) F Me Me2N + NMe2 TBHP t-Butylhydroperoxide Si Me S Me NMe TBS t-Butyldimethylsilyl (also TBDMS) F TASF 2

TCE 2,2,2-Trichloroethyl (alcohol, acid protection) NC CN TCNE Tetracyanoethylene N TCNQ 7,7,8,8-Tetracyanoquinodimethane O TEA Triethylamine TEMPO NC CN Tebbe N N TCNQ

TEMPO Tetramethylpiperidinyloxy TMEDA TES Triethylsilyl CH2 CH3 Al Tf Triflate (CF3SO2) Ti Cl CH TFA Trifluoroacetic(yl) 3 Tebbe Thexyl Me2CHMe2C- THF Tetrahydrofuran; solvent N N

THP Tetrahydropyran (alcohol protecting group) N TIPS Triisopropylsilyl (alcohol protection) TMTAN TMEDA N,N,N',N'-Tetramethylethylenediamine O O C TMTAN 1,4,7-trimethyl-1,4,7-tetraazanonane S N TMS Tetramethylsilane, also Trimethylsilyl TOSMIC TMSI Trimethylsilyl Iodide Tol p-Tolyl TOSMIC p-Toluenesulfonylmethylisocyanide TPAP Tetra-n-propylammonium Perruthenate TPP meso-Tetraphenylporphyrin TRIS Tris(hydroxymethyl)aminomethane (buffer) Trityl Triphenylmethyl

Troc Trichloroethyloxycarbonyl (CCl3CH2OC(O)-)

Ts Tosyl (p-CH3C6H4SO2) TTN Thallium Trinitrate WK Wolff-Kishner Reduction Z Zusammen (together, cis)