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Quarternary Ammonium Salts as Reaction Media for Asymmetric Hydrogenation of beta-Ketoesters

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    0313284 - ÚCHP 2009 RIV SK eng C - Conference Paper (international conference)
    Floriš, T. - Klusoň, Petr - Bartek, L. - Storch, Jan
    Quarternary Ammonium Salts as Reaction Media for Asymmetric Hydrogenation of beta-Ketoesters.
    [Asymetrická hydrogenace beta-ketoesteru v iontových kapalinách.]
    Book of Abstracts. Bratislava: Slovak University of Technology, 2008 - (Horváth, B.; Hronec, M.), s. 215-221. ISBN 978-80-227-2923-9.
    [9th Pannonian International Symposium On Catalysis. Štrbské Pleso (SK), 08.09.2008-12.09.2008]
    R&D Projects: GA ČR GD203/08/H032; GA AV ČR KAN400720701
    Institutional research plan: CEZ:AV0Z40720504
    Keywords : hydrogenation reactions * catalysts
    Subject RIV: CF - Physical ; Theoretical Chemistry

    The result in this contribution presented that the use of n-alkyl-triethylammonium bis(trifluoromethane sulfonyl) imides as the immobilization media is promissing, in spite of their negative effect on the kinetic parameters, aspecially turnover rate and enantioselectivity. In this case, asymmetric hydrogenation of methyl acetoacetate can proceed with high selectivity, products can be separated anf the catalyst re-used.

    Asymetrická hydrogenace methyl acetoacetátu v iontových kapalinách, obecného názvu n-alky-triethylammonium bis(trifluormethylsulfonyl)imid, běží s vysokou selektivitou, produkty lze jednoduše oddělit extrakcí do organického rozpouštědla a katalyzátor recyklovat. Použití těchto iontových kapalin k imobilizaci katalyzátoru s sebou nese i určité nevýhody. Ty jsou diskutovány v tomto příspěvku.
    Permanent Link: http://hdl.handle.net/11104/0164152

     
     
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