Dimethyl carbonate synthesis catalyzed by DABCO-derived basic ionic liquids via transesterification of ethylene carbonate with methanol

被引：96

作者：

Yang, Zhen-Zhen

He, Liang-Nian ^{[1
]}

Dou, Xiao-Yong

Chanfreau, Sebastien

机构：

[1] Nankai Univ, State Key Lab, Tianjin 300071, Peoples R China

来源：

TETRAHEDRON LETTERS | 2010年 / 51卷 / 21期

基金：

中国国家自然科学基金;

关键词：

Dimethyl carbonate; Ionic liquid; Transesterification reaction; Ethylene carbonate; QUATERNARY AMMONIUM-SALT; CYCLIC CARBONATES; PROPYLENE CARBONATE; CHEMICAL FIXATION; HIGHLY EFFICIENT; DIOXIDE; EPOXIDES; CO2; SILICA; PERFORMANCE;

D O I：

10.1016/j.tetlet.2010.03.114

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Easily prepared DABCO-derived (1,4-diazobicyclo[2.2.2]octane) basic ionic liquids were developed for an efficient synthesis of dimethyl carbonate (DMC) via the transesterification of ethylene carbonate (EC) with methanol. 1-Butyl-4-azo-1-azoniabicyclo[2.2.2]octane hydroxide ([C(4)DABCO]OH) exhibited high catalytic activity and 81% DMC yield together with 90% EC conversion was obtained under mild reaction conditions. Notably, the catalyst could be recycled for four times without loss of catalytic activity. Moreover, a possible mechanism was also discussed. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：2931 / 2934

页数：4

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