Počet záznamů: 1

Pyrazinium Salts as Efficient Organocatalysts of Mild Oxidations with Hydrogen Peroxide

  1. 1.
    0359406 - UOCHB-X 2012 RIV DE eng J - Článek v odborném periodiku
    Ménová, Petra - Kafka, František - Dvořáková, H. - Gunnoo, S. - Šanda, Miloslav - Cibulka, R.
    Pyrazinium Salts as Efficient Organocatalysts of Mild Oxidations with Hydrogen Peroxide.
    Advanced Synthesis & Catalysis. Roč. 353, č. 6 (2011), s. 865-870 ISSN 1615-4150
    Grant CEP: GA ČR(CZ) GA203/07/1246
    Výzkumný záměr: CEZ:AV0Z40550506
    Klíčová slova: Baeyer-Villiger oxidation * organocatalysis * peroxides * pyrazinium salts * sulfoxidation
    Kód oboru RIV: CC - Organická chemie
    Impakt faktor: 6.048, rok: 2011

    A series of 3-substituted pyrazinium tetrafluoroborates was prepared as simple analogues of flavinium salts which are efficient organocatalysts for oxidations with hydrogen peroxide. It was shown that pyrazinium derivatives with an electronwithdrawing substituent catalyze mild oxidations of sulfides to sulfoxides and Baeyer–Villiger oxidations in a similar way to flavinium catalysts. A proposed mechanism for the catalysis is based on the formation of pyrazine hydroperoxide which is the agent oxidizing the substrate.
    Trvalý link: http://hdl.handle.net/11104/0197203