Conversion dependence of enantioselective hydrogenation of (E)-alpha-phenylcinnamic acid on cinchonidine-modified Pd/TiO2 catalyst

被引:84
作者
Nitta, Y
Kobiro, K
机构
[1] Niihama Natl. College of Technology, Niihama, Ehime 792, Yagumo-cho
关键词
D O I
10.1246/cl.1996.897
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The enantioselectivity of a cinchonidine-modified Pd/TiO2 catalyst varied with the extent of conversion in the hydrogenation of (E)-alpha-phenylcinnamic acid. The incremental enantioselectivity reached a maximum at an early stage of the reaction. Under optimized reaction conditions, optical yields of up to 72%e.e. of (S)-(+)-2,3-diphenylpropionic acid were obtained at 100% conversion.
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页码:897 / 898
页数:2
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