Transesterification of methyl benzoate and dimethyl terephthalate with ethylene glycol over superbases

被引：29

作者：

Gorzawski, H ^{[1
]}

Hoelderich, WF ^{[1
]}

机构：

[1] Univ Technol RWTH Aachen, Dept Chem Technol & Heterogeneous Catalysis, D-52074 Aachen, Germany

来源：

APPLIED CATALYSIS A-GENERAL | 1999年 / 179卷 / 1-2期

关键词：

solid superbase; transesterification; methyl benzoate; dimethyl terephthalate; ethylene glycol; heterogeneous catalysis;

D O I：

10.1016/S0926-860X(98)00307-X

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：

The catalytic behavior of the superbases Na/NaOH/gamma-Al2O3 and CsxO/gamma-Al2O3 was investigated in the transesterification of methyl benzoate and dimethyl terephthalate with ethylene glycol. The reactions were carried out in liquid phase under atmospheric pressure. The dependencies of conversion, selectivity and product distribution on temperature, reactant/catalyst ratio and the starting material ratio were investigated. In the transesterification of methyl benzoate selectivites to ethylene glycol monobenzoate up to 96% at conversions up to 94% have been observed. In the transesterification of dimethyl terephthalate yield of bis(2-hydroxyethyl) terephthalate of 88% is obtained. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：131 / 137

页数：7

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