DOCSLIB.ORG

Precious Metal Compounds and Catalysts

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Precious Metal Compounds and Catalysts Precious Metal Compounds and Catalysts Ag Pt Silver Platinum Os Ru Osmium Ruthenium Pd Palladium Ir Iridium INCLUDING: • Compounds and Homogeneous Catalysts • Supported & Unsupported Heterogeneous Catalysts • Fuel Cell Grade Products • FibreCat™ Anchored Homogeneous Catalysts • Precious Metal Scavenger Systems www.alfa.com Where Science Meets Service Precious Metal Compounds and Table of Contents Catalysts from Alfa Aesar When you order Johnson Matthey precious metal About Us _____________________________________________________________________________ II chemicals or catalyst products from Alfa Aesar, you Specialty & Bulk Products _____________________________________________________________ III can be assured of Johnson Matthey quality and service How to Order/General Information ____________________________________________________IV through all stages of your project. Alfa Aesar carries a full Abbreviations and Codes _____________________________________________________________ 1 Introduction to Catalysis and Catalysts ________________________________________________ 3 range of Johnson Matthey catalysts in stock in smaller catalog pack sizes and semi-bulk quantities for immediate Precious Metal Compounds and Homogeneous Catalysts ____________________________ 19 shipment. Our worldwide plants have the stock and Asymmetric Hydrogenation Ligand/Catalyst Kit __________________________________________________ 57 Advanced Coupling Kit _________________________________________________________________________ 59 manufacturing capability to meet your needs when it is Mini Advanced Coupling Kit ____________________________________________________________________ 59 time to scale up. All products are lot-traceable to ensure you get the specific material you need. Supported Heterogeneous Catalysts _________________________________________________ 60 As a leading manufacturer and supplier of PGM Unsupported Heterogeneous Catalysts _______________________________________________ 69 homogeneous and heterogeneous catalysts, Johnson Fuel Cell Products ___________________________________________________________________ 71 Matthey offers toll and custom manufacturing, as well HiSPEC™ Fuel Cell Catalysts _______________________________________________________________ 71 HiFUEL™ Catalysts _________________________________________________________________________ 72 as refining and analytical services. Johnson Matthey is Fuel Cell Components_____________________________________________________________________ 73 developing new catalytic materials for applications such as pharmaceuticals, fuel cells, sensors, automobiles, FibreCat™ Anchored Homogeneous Catalysts _______________________________________ 79 batteries, photographic materials, specialized plating, and Scavenger Systems __________________________________________________________________ 82 catalyst manufacture. I Precious Metal Compounds and Table of Contents Catalysts from Alfa Aesar When you order Johnson Matthey precious metal About Us _____________________________________________________________________________ II chemicals or catalyst products from Alfa Aesar, you How to Order/General Information ____________________________________________________III can be assured of Johnson Matthey quality and service Abbreviations and Codes _____________________________________________________________ 1 through all stages of your project. Alfa Aesar carries a full Introduction to Catalysis and Catalysts ________________________________________________ 3 range of Johnson Matthey catalysts in stock in smaller catalog pack sizes and semi-bulk quantities for immediate Precious Metal Compounds and Homogeneous Catalysts ____________________________ 19 Asymmetric Hydrogenation Ligand/Catalyst Kit __________________________________________________ 57 shipment. Our worldwide plants have the stock and Advanced Coupling Kit _________________________________________________________________________ 59 Mini Advanced Coupling Kit _____________________________________________________________________ 59 manufacturing capability to meet your needs when it is time to scale up. All products are lot-traceable to ensure Supported Heterogeneous Catalysts _________________________________________________ 60 you get the specific material you need. Unsupported Heterogeneous Catalysts _______________________________________________ 69 As a leading manufacturer and supplier of PGM Fuel Cell Products ___________________________________________________________________ 71 homogeneous and heterogeneous catalysts, Johnson HiSPEC™ Fuel Cell Catalysts _______________________________________________________________ 71 Matthey offers toll and custom manufacturing, as well HiFUEL™ Catalysts __________________________________________________________________________ 72 Fuel Cell Components___________________________________________________________________________ 73 as refining and analytical services. Johnson Matthey is developing new catalytic materials for applications such FibreCat™ Anchored Homogeneous Catalysts _______________________________________ 79 as pharmaceuticals, fuel cells, sensors, automobiles, batteries, photographic materials, specialized plating, and Scavenger Systems __________________________________________________________________ 82 catalyst manufacture. I About Us Specialty & Bulk Products GLOBAL INVENTORY Our Specialty and Bulk Sales Group Ê Competitive prices on bulk a special orders will gladly handle large and special Ê Many bulk and special orders filled from The majority of our compounds, catalysts and related orders at competitive prices. We can existing stock products are available in research and development often fill your order for custom sizes Ê Custom fabrication to meet your quantities from stock. We also supply most products from directly from stock. Products ship with requirements Custom packaging and labeling available stock in semi-bulk or bulk quantities. Many are in regular Certificates of Analysis and Material Ê production and are available in bulk for next day shipment. Safety Data Sheets. Contact us with your next quote request. Our experience in manufacturing, sourcing and handling a wide range of products enables us to respond quickly and efficiently to your needs. CUSTOM SYNTHESIS We offer flexible custom manufacturing services with the assurance of quality and confidentiality. We can deliver the chemical you need in sizes for research, pilot-scale and full- scale production applications. CUSTOMER SERVICE Our dedicated scientific and commercial teams offer full service from production to delivery. Most products Organics Catalysts are stocked in catalog pack sizes and the majority are The Alfa Aesar facility in Heysham, England, where Many precious metal catalysts are manufactured in available from stock in semi-bulk and bulk quantities as well. many organic products are made. our West Deptford, NJ facility. All specialty and bulk products are shipped with a batch specific certificate of analysis and material safety data sheet. Because we understand that specific packaging is often important, we offer custom packaging and labeling to meet your requirements. QUALITY CONTROL We employ advanced quality control for both in-process and final product testing phases. The high standard of our modern quality control and assurance facilities is matched by the expertise of our experienced staff. Inorganics Pilot Plant/Custom Royston, England, where we make high purity A wide variety of compounds can be synthesized inorganics and catalysts. for you your custom needs at our Alfa Aesar Synmax facility in Yantai, China. II III How to Order/ Also Available from Alfa Aesar General Information ORDERING of your receiving the materials. Restocking 2011-13 RESEARCH Chemicals, Metals AND Materials Catalog There is no minimum order. All orders are fees may be charged on authorized The 2011-13 Research Chemicals, Metals and Materials catalog offers more than 33,000 products. The complete range of organics, inorganics, metals and accepted, regardless of size. returns. materials includes over 4,000 new products. Order it today! Contact your local sales office or send an email to [email protected]. PRICING TERMS OF SALE Most current pricing may be found at our FINE Chemicals FOR RESEARCH AND PRODUCTION BROCHURE The 8-page brochure outlines Alfa Aesar’s key capabilities as a manufacturer Full details of Terms and Conditions are website: www.alfa.com. In cases where the and supplier of fine chemicals, including organics, high purity inorganics and selling price has changed significantly, we will listed on our website (www.alfa.com). For precious metal catalysts. It focuses on manufacturing, custom synthesis, contact you prior to filling your web, email or health and safety reasons, wes hall not inventory, customer service, quality control, and new product development. faxed order. Our payment terms are net 30 days supply chemicals to private individuals or FLUORINATED ORGANICS CATALOG of invoice. deliver to residential addresses. Orders will This 284-page catalog lists over 3,300 fluorinated organic compounds, including bea ccepted from legitimate business new boronic acids manufactured by Alfa Aesar Synmax in Yantai, China. SHIPPING customers only. Alfa Aesar is the exclusive distributor of research quantities of these novel fluoroaromatics from JRD Fluorochemicals. Whenever possible, we will ship products by the method specified on your order. NEW CUSTOMERS HIGH PURITY Metals & Materials CATALOG We welcome
Load more

Recommended publications
  • Aldrich FT-IR Collection Edition I Library
    Aldrich FT-IR Collection Edition I Library Library Listing – 10,505 spectra This library is the original FT-IR spectral collection from Aldrich. It includes a wide variety of pure chemical compounds found in the Aldrich Handbook of Fine Chemicals. The Aldrich Collection of FT-IR Spectra Edition I library contains spectra of 10,505 pure compounds and is a subset of the Aldrich Collection of FT-IR Spectra Edition II library. All spectra were acquired by Sigma-Aldrich Co. and were processed by Thermo Fisher Scientific. Eight smaller Aldrich Material Specific Sub-Libraries are also available. Aldrich FT-IR Collection Edition I Index Compound Name Index Compound Name 3515 ((1R)-(ENDO,ANTI))-(+)-3- 928 (+)-LIMONENE OXIDE, 97%, BROMOCAMPHOR-8- SULFONIC MIXTURE OF CIS AND TRANS ACID, AMMONIUM SALT 209 (+)-LONGIFOLENE, 98+% 1708 ((1R)-ENDO)-(+)-3- 2283 (+)-MURAMIC ACID HYDRATE, BROMOCAMPHOR, 98% 98% 3516 ((1S)-(ENDO,ANTI))-(-)-3- 2966 (+)-N,N'- BROMOCAMPHOR-8- SULFONIC DIALLYLTARTARDIAMIDE, 99+% ACID, AMMONIUM SALT 2976 (+)-N-ACETYLMURAMIC ACID, 644 ((1S)-ENDO)-(-)-BORNEOL, 99% 97% 9587 (+)-11ALPHA-HYDROXY-17ALPHA- 965 (+)-NOE-LACTOL DIMER, 99+% METHYLTESTOSTERONE 5127 (+)-P-BROMOTETRAMISOLE 9590 (+)-11ALPHA- OXALATE, 99% HYDROXYPROGESTERONE, 95% 661 (+)-P-MENTH-1-EN-9-OL, 97%, 9588 (+)-17-METHYLTESTOSTERONE, MIXTURE OF ISOMERS 99% 730 (+)-PERSEITOL 8681 (+)-2'-DEOXYURIDINE, 99+% 7913 (+)-PILOCARPINE 7591 (+)-2,3-O-ISOPROPYLIDENE-2,3- HYDROCHLORIDE, 99% DIHYDROXY- 1,4- 5844 (+)-RUTIN HYDRATE, 95% BIS(DIPHENYLPHOSPHINO)BUT 9571 (+)-STIGMASTANOL
    [Show full text]
  • Palladium-Catalyzed Arene Functionalization Via Single- Electron Reduction of Selectfluor
    Palladium-Catalyzed Arene Functionalization via Single- Electron Reduction of Selectfluor The Harvard community has made this article openly available. Please share how this access benefits you. Your story matters Citation Mazzotti, Anthony Renato. 2016. Palladium-Catalyzed Arene Functionalization via Single-Electron Reduction of Selectfluor. Doctoral dissertation, Harvard University, Graduate School of Arts & Sciences. Citable link http://nrs.harvard.edu/urn-3:HUL.InstRepos:33840680 Terms of Use This article was downloaded from Harvard University’s DASH repository, and is made available under the terms and conditions applicable to Other Posted Material, as set forth at http:// nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of- use#LAA Palladium-Catalyzed Arene Functionalization via Single-Electron Reduction of Selectfluor A dissertation presented by Anthony Renato Mazzotti to The Department of Chemistry and Chemical Biology In partial fulfillment of the requirements for the degree of Doctor of Philosophy in the subject of Chemistry Harvard University Cambridge, Massachusetts July 2016 © Anthony Renato Mazzotti All Rights Reserved. Dissertation Advisor: Professor Tobias Ritter Anthony Renato Mazzotti Palladium-Catalyzed Arene Functionalization via Single-Electron Reduction of Selectfluor Abstract Palladium-catalysis is commonly used in the functionalization of aromatic rings, ranging from prefunctionalized substrates such as aryl metals or aryl (pseudo)halides to the direct functionalization of aromatic C–H bonds. Palladium-catalyzed
    [Show full text]
  • Safety Data Sheet Acc
    Product Distributed by Rio Grande SDS access on web: www.riogrande.com Page 1 of 13 Safety Data Sheet acc. to OSHA HCS (29 CFR 1910.1200) Printing date 03/20/2015 Reviewed on 03/20/2015 1 Identification · Product identifier · Trade name: Midas® 24K Gold Cyanide-Based Concentrate Plating Solution · Article number: 335-082 · Recommended use and restriction on use · Recommended use: Electroplating material · Restrictions on use: No further relevant information available. · Details of the supplier of the Safety Data Sheet · Manufacturer/Supplier: RIO GRANDE 7500 Bluewater Rd. NW Alburquerque NM 87121-1962 1-800-545-6566 [email protected] · Emergency telephone number: ChemTel Inc. (800)255-3924, +1 (813)248-0585 2 Hazard(s) identification · Classification of the substance or mixture GHS06 Skull and crossbones Acute Tox. 2 H300 Fatal if swallowed. Acute Tox. 2 H310 Fatal in contact with skin. Acute Tox. 3 H331 Toxic if inhaled. GHS07 Skin Sens. 1 H317 May cause an allergic skin reaction. · Additional information: There are no other hazards not otherwise classified that have been identified. 0 percent of the mixture consists of ingredient(s) of unknown toxicity. · Label elements · GHS label elements The product is classified and labeled according to the Globally Harmonized System (GHS). · Hazard pictograms GHS06 · Signal word Danger · Hazard-determining components of labeling: potassium cyanide (Contd. on page 2) 40.1.3 Page 2 of 13 Safety Data Sheet acc. to OSHA HCS (29 CFR 1910.1200) Printing date 03/20/2015 Reviewed on 03/20/2015 Trade name: Midas® 24K Gold Cyanide-Based Concentrate Plating Solution (Contd.
    [Show full text]
  • The Reaction of Arenetricarbonylchromium Complexes with Alkyllithium Could Proceed Via a Variety of Pathways to Yield Any of Several Possible Products
    Iowa State University Capstones, Theses and Retrospective Theses and Dissertations Dissertations 1975 The er action of arenetricarbonylchromium complexes with alkyllithium compounds Roger John Card Iowa State University Follow this and additional works at: https://lib.dr.iastate.edu/rtd Part of the Organic Chemistry Commons Recommended Citation Card, Roger John, "The er action of arenetricarbonylchromium complexes with alkyllithium compounds " (1975). Retrospective Theses and Dissertations. 5410. https://lib.dr.iastate.edu/rtd/5410 This Dissertation is brought to you for free and open access by the Iowa State University Capstones, Theses and Dissertations at Iowa State University Digital Repository. It has been accepted for inclusion in Retrospective Theses and Dissertations by an authorized administrator of Iowa State University Digital Repository. For more information, please contact [email protected]. INFORMATION TO USERS This material was produced from a microfilm copy of the original document. While the most advance technological means to photograim and reproduce this document have been used, the quality is heavily dependent upon the quality of the original submitted. The following explanation of techniques is provided to help you understand markings or patterns which may appear on this reproduction. 1. The sign or "target" for pages apparency lacking from the document photographed is "Missing Page(s)". If it was possible to obtain the missing page(s) or section, they are spliced into the film along with adiacent pages. This may have necessitated cutting tiiru an image and duplicating adjscsnt pages to insure you complete continuity. 2. When an image on the film is obliterated with a large round biack mark, it is an indication Aat the photographer suspected that the copy may have moved during exposure and thus cause a blurred image.
    [Show full text]
  • Palladium-Catalyzed Vinylic Substitution of Aryl Halides on Polymeric Nitrogen Supports
    Louisiana State University LSU Digital Commons LSU Historical Dissertations and Theses Graduate School 1986 Palladium-Catalyzed Vinylic Substitution of Aryl Halides on Polymeric Nitrogen Supports. Chia-hsing Sun Louisiana State University and Agricultural & Mechanical College Follow this and additional works at: https://digitalcommons.lsu.edu/gradschool_disstheses Recommended Citation Sun, Chia-hsing, "Palladium-Catalyzed Vinylic Substitution of Aryl Halides on Polymeric Nitrogen Supports." (1986). LSU Historical Dissertations and Theses. 4268. https://digitalcommons.lsu.edu/gradschool_disstheses/4268 This Dissertation is brought to you for free and open access by the Graduate School at LSU Digital Commons. It has been accepted for inclusion in LSU Historical Dissertations and Theses by an authorized administrator of LSU Digital Commons. For more information, please contact [email protected]. INFORMATION TO USERS This reproduction was made from a copy of a manuscript sent to us for publication and microfilming. While the most advanced technology has been used to pho­ tograph and reproduce this manuscript, the quality of the reproduction is heavily dependent upon the quality of the material submitted. Pages in any manuscript may have indistinct print. In all cases the best available copy has been filmed. The following explanation of techniques is provided to help clarify notations which may appear on this reproduction. 1. Manuscripts may not always be complete. When it is not possible to obtain missing pages, a note appears to Indicate this. 2. When copyrighted materials are removed from the manuscript, a note ap­ pears to indicate this. 3. Oversize materials (maps, drawings, and charts) are photographed by sec­ tioning the original, beginning at the upper left hand comer and continu­ ing from left to right in equal sections with small overlaps.
    [Show full text]
  • 540.14Pri.Pdf
    Index Element names, parent hydride names and systematic names derived using any of the nomenclature systems described in this book are, with very few exceptions, not included explicitly in this index. If a name or term is referred to in several places in the book, the most informative references appear in bold type, and some of the less informative places are not cited in the index. Endings and suffixes are represented using a hyphen in the usual fashion, e.g. -01, and are indexed at the place where they would appear ignoring the hyphen. Names of compounds or groups not included in the index may be found in Tables P7 (p. 205), P9 (p. 232) and PIO (p. 234). ~, 3,87 acac, 93 *, 95 -acene, 66 \ +, 7,106 acetals, 160-161 - (minus), 7, 106 acetate, 45 - (en dash), 124-126 acetic acid, 45, 78 - (em dash), 41, 91, 107, 115-116, 188 acetic anhydride, 83 --+, 161,169-170 acetoacetic acid, 73 ct, 139, 159, 162, 164, 167-168 acetone, 78 ~, 159, 164, 167-168 acetonitrile, 79 y, 164 acetyl, III, 160, 163 11, 105, 110, 114-115, 117, 119-128, 185 acetyl chloride, 83, 183 K, 98,104-106,117,120,124-125, 185 acetylene, 78 A, 59, 130 acetylide, 41 11, 89-90,98, 104, 107, 113-116, 125-126, 146-147, acid anhydrides, see anhydrides 154, 185 acid halides, 75,83, 182-183 TC, 119 acid hydrogen, 16 cr, 119 acids ~, 167 amino acids, 25, 162-163 00, 139 carboxylic acids, 19,72-73,75--80, 165 fatty acids, 165 A sulfonic acids, 75 ct, 139,159,162,164,167-168 see also at single compounds A, 33-34 acrylic acid, 73, 78 A Guide to IUPAC Nomenclature of Organic actinide, 231 Compounds, 4, 36, 195 actinoids (vs.
    [Show full text]
  • Aldrich Organometallic, Inorganic, Silanes, Boranes, and Deuterated Compounds
    Aldrich Organometallic, Inorganic, Silanes, Boranes, and Deuterated Compounds Library Listing – 1,523 spectra Subset of Aldrich FT-IR Library related to organometallic, inorganic, boron and deueterium compounds. The Aldrich Material-Specific FT-IR Library collection represents a wide variety of the Aldrich Handbook of Fine Chemicals' most common chemicals divided by similar functional groups. These spectra were assembled from the Aldrich Collections of FT-IR Spectra Editions I or II, and the data has been carefully examined and processed by Thermo Fisher Scientific. Aldrich Organometallic, Inorganic, Silanes, Boranes, and Deuterated Compounds Index Compound Name Index Compound Name 1066 ((R)-(+)-2,2'- 1193 (1,2- BIS(DIPHENYLPHOSPHINO)-1,1'- BIS(DIPHENYLPHOSPHINO)ETHAN BINAPH)(1,5-CYCLOOCTADIENE) E)TUNGSTEN TETRACARBONYL, 1068 ((R)-(+)-2,2'- 97% BIS(DIPHENYLPHOSPHINO)-1,1'- 1062 (1,3- BINAPHTHYL)PALLADIUM(II) CH BIS(DIPHENYLPHOSPHINO)PROPA 1067 ((S)-(-)-2,2'- NE)DICHLORONICKEL(II) BIS(DIPHENYLPHOSPHINO)-1,1'- 598 (1,3-DIOXAN-2- BINAPH)(1,5-CYCLOOCTADIENE) YLETHYNYL)TRIMETHYLSILANE, 1140 (+)-(S)-1-((R)-2- 96% (DIPHENYLPHOSPHINO)FERROCE 1063 (1,4- NYL)ETHYL METHYL ETHER, 98 BIS(DIPHENYLPHOSPHINO)BUTAN 1146 (+)-(S)-N,N-DIMETHYL-1-((R)-1',2- E)(1,5- BIS(DI- CYCLOOCTADIENE)RHODIUM(I) PHENYLPHOSPHINO)FERROCENY TET L)E 951 (1,5-CYCLOOCTADIENE)(2,4- 1142 (+)-(S)-N,N-DIMETHYL-1-((R)-2- PENTANEDIONATO)RHODIUM(I), (DIPHENYLPHOSPHINO)FERROCE 99% NYL)ETHYLAMIN 1033 (1,5- 407 (+)-3',5'-O-(1,1,3,3- CYCLOOCTADIENE)BIS(METHYLD TETRAISOPROPYL-1,3- IPHENYLPHOSPHINE)IRIDIUM(I)
    [Show full text]
  • Palladium-Catalysed Oxidation of Primary and Secondary Alcohols
    Tetrahedron 59 (2003) 5789–5816 Tetrahedron report number 645 Palladium-catalysed oxidation of primary and secondary alcohols Jacques Muzart* Unite´ Mixte de Recherche ‘Re´actions Se´lectives et Applications’, CNRS-Universite´ de Reims Champagne-Ardenne, B.P. 1039, 51687 Reims Cedex 2, France Received 23 May 2003 Contents 1. Introduction 5789 2. Oxygen as a co-oxidant 5790 2.1. Using well-determined PdII-compounds 5790 2.2. Using soluble Pd0 complexes 5795 2.3. Using stabilised palladium particles 5796 2.4. Using supported Pd0 as the starting catalyst 5797 3. Per-compounds as co-oxidants 5798 3.1. tert-Butyl hydroperoxide 5798 3.2. Hydrogen peroxide 5798 3.3. Potassium periodate 5798 4. Halogen-based co-oxidants 5799 4.1. Aromatic halides 5799 4.2. Vinylic bromides 5802 4.3. Carbon tetrachloride 5803 4.4. 1,2-Dichloroethane 5803 4.5. N-Halosuccinimides 5804 5. Metal salts as co-oxidants 5804 6. Allyl-X as hydrogen acceptors 5804 7. Double bonds as hydrogen acceptors 5805 8. Oxidations without co-oxidants or hydrogen acceptors 5808 9. Conclusions 5809 10. Note added in proof 5809 1. Introduction reactions in organic synthesis. Traditionally, stoichiometric and even over-stoichiometric amounts of metal oxides The transformation of the hydroxy group into the corre- (Eq. (1)) or metal salts (Eq. (2)) are used for such oxidations. sponding carbonyl is one of the most frequently used These procedures, which generate copious quantities of heavy metal wastes, are hardly compatible with environ- Keywords: oxidation; dehydrogenation; alcohol; palladium; catalysis. mental regulations. A number of metal-catalysed methods have been described as interesting alternatives; this has Abbreviations: ADP, allyl diethyl phosphate; Adogen, 464w, introduced a third type of reaction (Eq.
    [Show full text]
  • Anomalous Products in the Halogenation Reactions of Vinca Alkaloids 1.949
    Send Orders for Reprints to [email protected] 2639 Current Organic Chemistry, 2016, 20, 2639-2646 RESEARCH ARTICLE ISSN: 1385-2728 eISSN: 1875-5348 Impact Factor: Anomalous Products in the Halogenation Reactions of Vinca Alkaloids 1.949 BENTHAM SCIENCE András Keglevich,1 László Hegeds,2 Lilla Péter,1 Judit Gyenese,1 Csaba Szántay, Jr.,3 Zsófia Dubrovay,3+ Miklós Dékány,3 Áron Szigetvári,3 Ana Martins,4++ József Molnár,4 Attila Hunyadi,5 Péter Keglevich1* and László Hazai1* 1Department of Organic Chemistry and Technology, University of Technology and Economics, Budapest, Hungary, H-1111 Budapest, Gellért tér 4. Hungary; 2MTA–BME Organic Chemical Technology Research Group, Hungarian Academy of Sciences, Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, Budafoki út 8, H-1111 Budapest, Hungary; 3Spectroscopic Research Division, Gedeon Richter Plc., H-1475 Budapest 10, P. O. Box 27, Hungary; 4Department of Medical Microbiology and Immunobiology, University of Szeged, 6720 Szeged, Dóm tér 10., Hungary; 5Institute of Pharmacognosy, University of Szeged, H-6720 Szeged, Eötvös u. 6., Hungary Abstract: Halogenation reactions of vindoline and 14,15-dihydrovindoline and its hydro- chloric salt were investigated and the anomalous reductions were discussed. Performing the hydrogenation in the presence of chlorine-containing solvent, e.g. dichloromethane, hydrogenolysation reaction of chlorine also took place. In this case unexpected chlorin- ated product could be observed. Performing the hydrogenation reaction only in the pres- ence of methanol, the expected reduced derivative was obtained. Upon bromination of vindoline with excess NBS, oxidation products with ring contraction and developing an oxygen bridge were isolated. The fluorination reactions of vinblastine using Selectfluor® and xenon difluoride as the fluorination reagents were unsuccessful because of the de- composition of the starting material.
    [Show full text]
  • Durham E-Theses
    Durham E-Theses Functionalised Pyridyl- and Pyrimidyl- Boronic acids and derived new Biheteroaryls Smith, Amy Elizabeth How to cite: Smith, Amy Elizabeth (2005) Functionalised Pyridyl- and Pyrimidyl- Boronic acids and derived new Biheteroaryls, Durham theses, Durham University. Available at Durham E-Theses Online: http://etheses.dur.ac.uk/2751/ Use policy The full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-prot purposes provided that: • a full bibliographic reference is made to the original source • a link is made to the metadata record in Durham E-Theses • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders. Please consult the full Durham E-Theses policy for further details. Academic Support Oce, Durham University, University Oce, Old Elvet, Durham DH1 3HP e-mail: [email protected] Tel: +44 0191 334 6107 http://etheses.dur.ac.uk 2 University of Durham A Thesis Entitled Functionalised Pyridyl- and Pyrimidyl- Boronic Acids and Derived New Biheteroaryls Submitted by Amy Elizabeth Smith, B.Sc. (Hons) (Ustinov College) Department of Chemistry A Candidate for the Degree of Doctor of Philosophy 2005 The copyright of this thesis rests wnh the author or the university to which к was submitted. No quotation from It, or Information derived from It may be published wHhout the prior written consent of the author or university, and any Information derived from ท should be acknowledged.
    [Show full text]
  • Silver Foam As Long-Term Passive Biocide for Potable Water Systems
    49th International Conference on Environmental Systems ICES-2019-272 7-11 July 2019, Boston, Massachusetts Silver Foam as Long-Term Passive Biocide for Potable Water Systems Tesia D. Irwin1, Wenyan Li2, Jerry Buhrow3, Angie Diaz4, and Luz M. Calle5 NASA, Kennedy Space Center, FL, 32899 and Michael R. Callahan 6 NASA Johnson Space Center, Houston, TX, 77058 A spacecraft water disinfection system, suitable for extended length space exploration missions, should prevent or control the growth of microbes, prevent or limit biofilm formation, and prevent microbiologically-influenced corrosion. In addition, the system should have minimal maintenance requirements, the effluent should be chemically compatible with all materials in contact with the water, be safe for human consumption, and suitable to be shared across international spacecraft platforms and mission architectures. Silver ions are a proven broad spectrum biocide. Silver is also the potable water biocide of choice for future exploration missions. Currently, the proposed method for implementing silver biocide in spacecraft systems relies on silver electrode technology to produce a controlled amount of silver ions. Unfortunately, electrolytic-based silver dosing presents multiple inherent challenges that affect performance and increase maintenance requirements over time. To decrease the risk of failure, an alternative silver biocide delivery method is needed. Control- release technology is an attractive option for developing a passive high-reliability silver dosing device. The concept of a nanoparticle/polyurethane (PU) composite foam for the controlled release of silver was prompted by the controlled release technology developed by NASA for the delivery of corrosion inhibitors and indicators. This paper presents the technical background and results from the synthesis and properties testing of the silver nanoparticles (AgNPs)/PU composite foam that is being developed for use in spacecraft potable water systems.
    [Show full text]
  • Synthesis and Reactivity of Cyclopentadienyl Based Organometallic Compounds and Their Electrochemical and Biological Properties
    Synthesis and reactivity of cyclopentadienyl based organometallic compounds and their electrochemical and biological properties Sasmita Mishra Department of Chemistry National Institute of Technology Rourkela Synthesis and reactivity of cyclopentadienyl based organometallic compounds and their electrochemical and biological properties Dissertation submitted to the National Institute of Technology Rourkela In partial fulfillment of the requirements of the degree of Doctor of Philosophy in Chemistry by Sasmita Mishra (Roll Number: 511CY604) Under the supervision of Prof. Saurav Chatterjee February, 2017 Department of Chemistry National Institute of Technology Rourkela Department of Chemistry National Institute of Technology Rourkela Certificate of Examination Roll Number: 511CY604 Name: Sasmita Mishra Title of Dissertation: ''Synthesis and reactivity of cyclopentadienyl based organometallic compounds and their electrochemical and biological properties We the below signed, after checking the dissertation mentioned above and the official record book(s) of the student, hereby state our approval of the dissertation submitted in partial fulfillment of the requirements of the degree of Doctor of Philosophy in Chemistry at National Institute of Technology Rourkela. We are satisfied with the volume, quality, correctness, and originality of the work. --------------------------- Prof. Saurav Chatterjee Principal Supervisor --------------------------- --------------------------- Prof. A. Sahoo. Prof. G. Hota Member (DSC) Member (DSC) ---------------------------
    [Show full text]