作者:Peter Kotrusz、Stefan Toma、Hans-Günther Schmalz、Andreas Adler
DOI:10.1002/ejoc.200300648
日期:2004.4
Michael additions of different aldehydes and ketones to β-nitrostyrene and 2-(β-nitrovinyl)thiophene in 1-butyl-3-methylimidazolium hexafluorophosphate ([bmim]PF6) were studied. β-Nitrostyrene was a better acceptor than 2-(β-nitrovinyl)thiophene, in terms of both reactivity and selectivity. Aldehydes proved to be better donors than ketones, which were themselves better than β-diketones. L-proline proved
研究了不同醛和酮与 1-丁基-3-甲基咪唑鎓六氟磷酸盐 ([bmim]PF6) 中的 β-硝基苯乙烯和 2-(β-硝基乙烯基)噻吩的迈克尔加成反应。就反应性和选择性而言,β-硝基苯乙烯是比 2-(β-硝基乙烯基)噻吩更好的受体。醛被证明是比酮更好的供体,酮本身比 β-二酮更好。L-脯氨酸被证明是测试的七种有机催化剂中最好的催化剂。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004)