Design of novel polymer-supported chiral catalyst for asymmetric transfer hydrogenation in water

被引：65
|
作者：
Arakawa, Y [1 ]
Haraguchi, N [1 ]
Itsuno, S [1 ]
机构：
[1] Toyohashi Univ Technol, Dept Mat Sci, Toyohashi, Aichi 4418580, Japan
来源：
TETRAHEDRON LETTERS | 2006年 / 47卷 / 19期
关键词：
water; sulfonated polymer; polymer-support; chiral catalyst; asymmetric transfer hydrogenation;
D O I：
10.1016/j.tetlet.2006.03.041
中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
New polymer-supported chiral sulfonamides containing sulfonated pendant group have been synthesized. Chiral catalyst prepared from the new polymer-support is more effective for asymmetric transfer hydrogenation of aromatic ketones in water compared to that prepared from conventional polystyrene-support. Polymer-supported catalysts containing quaternary ammonium salt as a pendant increased not only the reactivity but also the enantioselectivity in asymmetric transfer hydrogenation in water. Moreover, this type of polymer can be reused without loss of the catalytic activity. (c) 2006 Elsevier Ltd. All rights reserved.
引用
收藏
页码：3239 / 3243
页数：5
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