Trimethylsilyl pentafluorophenylbis(trifluoromethanesulfonyl)methide as a super Lewis acid catalyst for the condensation of trimethylhydroquinone with isophytol

被引：76

作者：

Hasegawa, A

Ishihara, K

Yamamoto, H ^{[1
]}

机构：

[1] Nagoya Univ, Grad Sch Engn, Nagoya, Aichi 4648603, Japan

[2] Univ Chicago, Dept Chem, Chicago, IL 60637 USA

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2003年 / 42卷 / 46期

关键词：

green chemistry; Lewis acids; silicon; superacidic systems; vitamins;

D O I：

10.1002/anie.200352382

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Acid and vitamin E: Trimethylsilyl super Lewis acids, such as [C 6F5-C(Tf)2]- Me3Si + and Tf3CSiMe3, are extremely active and highly effective catalysts for the regioselective condensation of trimethylhydroquinone with isophthyol to afford (±)-α-tocopherol (vitamin E; see scheme, Tf = CF3SO2.

引用

页码：5731 / 5733

页数：3

共 31 条

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