Transesterification of dimethyl carbonate with phenol using Bronsted and Lewis acidic ionic liquids

被引：44
|
作者：
Deshmukh, Krishna M. [1 ]
Qureshi, Ziyauddin S. [1 ]
Dhake, Kishor P. [1 ]
Bhanage, Bhalchandra M. [1 ]
机构：
[1] Inst Chem Technol, Dept Chem, Bombay 400019, Maharashtra, India
来源：
CATALYSIS COMMUNICATIONS | 2010年 / 12卷 / 03期
关键词：
Transesterification; Bronsted acidic ionic liquids; Lewis acidic ionic liquids; Dimethyl carbonate; Diphenyl carbonate; Phenol; DIPHENYL CARBONATE; CATALYSTS; DIALKYL;
D O I：
10.1016/j.catcom.2010.09.017
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：
Transesterification reaction of dimethyl carbonate with phenol to methylphenyl carbonate and diphenyl carbonate using dibutyltin oxide catalyst in conjunction with Bronsted and Lewis acidic ionic liquids was studied It was observed that the use of ionic liquids significantly enhances the yield of diphenyl carbonate The ionic liquid having p-toluenesulfonate as anion and metal halide (e g ZnCl2) as Lewis acid precursor exhibited higher activity and selectivity for diphenyl carbonate formation Furthermore the Bronsted and Lewis acidity of ionic liquids was measured by IR spectroscopy using pyridine as a probe and their Lewis acidity order was also determined (C) 2010 Elsevier B V All rights reserved
引用
收藏
页码：207 / 211
页数：5
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