A highly enantioselective one-pot sulfur ylide epoxidation reaction

被引:46
|
作者
Winn, CL [1 ]
Bellenie, BR [1 ]
Goodman, JM [1 ]
机构
[1] Univ Cambridge, Dept Chem, Cambridge CB2 1EW, England
基金
英国工程与自然科学研究理事会;
关键词
D O I
10.1016/S0040-4039(02)01072-9
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
Enantiomerically pure tricyclic C-symmetric sulfide I can be prepared in high yield and only three steps from D-mannitol. When used in a one-pot sulfur ylide mediated epoxidation reaction, between 94 and 98% enantiomeric excess was obtained; the highest reported to date for the catalytic process. Molecular modelling studies of the ylide conformation provides a basis for understanding the stereochemical outcome of the reaction. (C) 2002 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:5427 / 5430
页数:4
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