Lewis acid catalysis by lanthanide complexes with tris(perfluorooctanesulfonyl)methide ponytails in fluorous recyclable phase

被引:50
作者
Mikami, K [1 ]
Mikami, Y
Matsumoto, Y
Nishikido, J
Yamamoto, F
Nakajima, H
机构
[1] Tokyo Inst Technol, Dept Appl Chem, Tokyo 1528552, Japan
[2] Noguchi Inst, Tokyo 1730003, Japan
关键词
acylation; environmental benignity; fluorous phase; lanthanide; Lewis acid catalysis;
D O I
10.1016/S0040-4039(00)01925-0
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
Scandium and ytterbium tris(perfluorooctanesulfonyl)methide complexes are shown to be immobilized in fluorous recyclable phase and extremely efficient Lewis acid catalysts for alcohol acylation, Friedel-Crafts acylation, Diels-Alder reaction, and Mukaiyama aldol reaction by virtue of the highly electron-withdrawing effect of trisfperfluorooctanesulfonyl)methide ponytails without any hydrocarbon spacer. (C) 2000 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:289 / 292
页数:4
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