Novel bronsted acidic ionic liquids and their use as dual solvent-catalysts

被引：1230

作者：

Cole, AC ^{[1
]}

Jensen, JL ^{[1
]}

Ntai, I ^{[1
]}

Tran, KLT ^{[1
]}

Weaver, KJ ^{[1
]}

Forbes, DC ^{[1
]}

Davis, JH ^{[1
]}

机构：

[1] Univ S Alabama, Dept Chem, Mobile, AL 36688 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2002年 / 124卷 / 21期

关键词：

D O I：

10.1021/ja026290w

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The reaction of triphenylphosphine or N-butylimidazole with cyclic sultones gives zwitterions that are subsequently converted into ionic liquids by reaction with trifluoromethane sulfonic acid or p-toluenesulfonic acid. The resulting ionic liquids have cations to which are tethered alkane sulfonic acid groups. These Brønsted acidic ionic liquids are useful solvent/catalysts for several organic reactions, including Fischer esterification, alcohol dehydrodimerization and the pinacol rearrangement. The new ionic liquids combine the low volatility and ease of separation from product normally associated with solid acid catalysts, with the higher activity and yields normally found using conventional liquid acids. Copyright © 2002 American Chemical Society.

引用

页码：5962 / 5963

页数：2

共 20 条

[1] CO2 capture by a task-specific ionic liquid [J].