Ruthenium-catalyzed sequential reactions: Deracemization of secondary benzylic alcohols

被引:42
作者
Shimada, Yusuke [1 ]
Miyake, Yoshihiro [1 ]
Matsuzawa, Hiroshi [1 ]
Nishibayashi, Yoshiaki [1 ]
机构
[1] Univ Tokyo, Inst Engn Innovat, Bunkyo Ku, Tokyo 1138656, Japan
关键词
alcohols; homogeneous catalysis; oxidation; reduction; ruthenium;
D O I
10.1002/asia.200600354
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The deracemization of secondary benzylic alcohols proceeds successfully by a two-step process with the appropriate combination of two different ruthenium complexes for catalysis in the first oxidation and second reduction steps. The sequential catalytic system provides a novel approach to obtaining optically active alcohols, including diols, in high yields with excellent enantioselectivity (up to 95% ee), in contrast to the conventional kinetic resolution of racemic alcohols.
引用
收藏
页码:393 / 396
页数:4
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