The deoxygenation of sulfoxide mediated by the Ph3P/Lewis acid combination and the application to the kinetic resolution of racemic phosphines using optically active sulfoxide

被引:40
|
作者
Kikuchi, S [1 ]
Konishi, H [1 ]
Hashimoto, Y [1 ]
机构
[1] Univ Tokyo, Sch Engn, Dept Chem & Biotechnol, Bunkyo Ku, Tokyo 1138656, Japan
关键词
phosphine; Lewis acid; deoxygenation; kinetic resolution;
D O I
10.1016/j.tet.2005.01.127
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
It was found that the combination of Ph3P/TiCl4 was an effective promoter for the deoxygenation of sulfoxides and gave the corresponding sulfides in good yield (up to 97%) under mild conditions. This method was applied to the reaction between racemic phosphines and (R)-methyl p-tolyl sulfoxide, and it was found that the kinetic resolution was achieved in moderate selectivities. (c) 2005 Elsevier Ltd. All rights reserved.
引用
收藏
页码:3587 / 3591
页数:5
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