Bronsted acidic ionic liquids: the dependence on water of the Fischer esterification of acetic acid and ethanol

被引：141

作者：

Forbes, DC ^{[1
]}

Weaver, KJ ^{[1
]}

机构：

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

来源：

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 2004年 / 214卷 / 01期

关键词：

immobilized technologies; task-specific ionic liquids; esterification; reuse; green chemistry;

D O I：

10.1016/j.molcata.2003.09.035

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Initial studies involving the Fischer esterification of acetic acid utilizing task specific ionic liquid (TSIL) 1 and ethanol revealed an interesting trend when comparing overall conversions with the level of reuse. A rise in product yield was observed up to the third recycling of the ionic liquid (IL) medium. Post-run analyses revealed that the TSIL remained unchanged and the by-products of the reaction, acetic acid and water, were being retained. Use of TSILs in the Fischer esterification reaction was both high yielding and programmable if the proper ratio of both water and reagents to immobilized medium was observed. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：129 / 132

页数：4

共 22 条

[1] Unexpected side reactions of imidazolium-based ionic liquids in the base-catalysed Baylis-Hillman reaction [J].