MONTMORILLONITE SUPPORTED (-)-N-DODECYL-N-METHYL-EPHEDRENIUM BOROHYDRIDE - AN EFFICIENT REDUCING AGENT

被引：9
|
作者：
SARKAR, A
RAO, BR
机构：
[1] Deptt. of Appl. Chemistry, Indian School of Mines, Dhanbad
来源：
TETRAHEDRON LETTERS | 1991年 / 32卷 / 09期
关键词：
D O I：
10.1016/S0040-4039(00)92057-4
中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
The clay supported reagent reduces ketones under phase transfer conditions efficiently. A two fold activation of the carbonyl group - one by the Lewis acid sites on clay and the other by the beta-hydroxy group of ephedrenium moiety, ensures facile reductions - maintaining a fair degree of stereoselectivity in reducing some of the cyclic ketones. Asymmetric inductions of 1-9.7% were observed in case of some prochiral ketones.
引用
收藏
页码：1247 / 1250
页数：4
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