Trimeric Cinchona alkaloid phase-transfer catalyst:: α,α′,α"-tris[O(9)-allylcinchonidinium]mesitylene tribromide

被引:94
作者
Park, HG [1 ]
Jeong, BS [1 ]
Yoo, MS [1 ]
Park, MK [1 ]
Huh, H [1 ]
Jew, SS [1 ]
机构
[1] Seoul Natl Univ, Coll Pharm, Seoul 151742, South Korea
关键词
trimeric Cinchona alkaloid ammonium salt; phase-transfer catalyst;
D O I
10.1016/S0040-4039(01)00809-7
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
A trimeric Cinchona alkaloid ammonium salt, alpha,alpha',alpha" -tris[O(9)-allylcinchonidinium]mesitylene tribromide has been prepared as a novel phase-transfer catalyst. The catalytic enantioselective alkylation of N-(diphenylmethylene)glycine tert-butyl ester using the trimer catalyst showed high enantioselectivity (90-97% ee). (C) 2001 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:4645 / 4648
页数:4
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