期刊
ADVANCED SYNTHESIS & CATALYSIS
卷 349, 期 11-12, 页码 2061-2065出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adsc.200700136
关键词
aldol reaction; ionic liquids; organocatalysis; proline-derived catalysis
Two onium ion-tagged prolines, imidazolium bis(trifluoromethylsulfonyl)imide-substituted proline 6 and butyldimethylammonium bis(trifluoromethylsulfonyl)imide-substituted proline 7, were synthesised and their catalytic activity in the direct asymmetric aldol condensation was studied in ionic liquids. For the reaction of acetone with various aldehydes, using 5% of the catalyst, the yields of the aldols varied between 50-85% while the ee values were in the 80-85% range. Other ketones were studied too, the yields obtained in those cases being in the 35-78% range while the enantioselectivities varied between 75-94%.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据