SYNTHESIS OF NEW CHIRAL PHASE-TRANSFER CATALYSTS AND THEIR APPLICATION TO MICHAEL ADDITIONS

被引:18
作者
BANFI, S
CINQUINI, M
COLONNA, S
机构
[1] UNIV MILAN, CNR, I-20133 MILAN, ITALY
[2] UNIV MILAN, IST CHIM IND, I-20133 MILAN, ITALY
关键词
D O I
10.1246/bcsj.54.1841
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A series of chiral onium salts derived from (L)-( plus )-methionine have been examined for the catalysis of Michael additions in phase-transfer conditions. The chemical yields are high, but no asymmetric induction was observed. One particular catalyst represents the first example of an onium salt anchored to a polimetric matrix having a higher catalytic efficiency than its soluble counterpart.
引用
收藏
页码:1841 / 1843
页数:3
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