Cp2TiCl2 used as a catalyst for the transesterification between dimethyl carbonate and phenol to diphenyl carbonate

被引：38

作者：

Niu, HY

Yao, J

Wang, Y

Wang, GY ^{[1
]}

机构：

[1] Chinese Acad Sci, Chengdu Inst Organ Chem, Chengdu 610041, Peoples R China

[2] Chinese Acad Sci, Grad Sch, Beijing, Peoples R China

来源：

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 2005年 / 235卷 / 1-2期

关键词：

titanocene dichloride; transesterification; diphenyl carbonate; dimethyl carbonate; titanium ester;

D O I：

10.1016/j.molcata.2005.03.023

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：

Titanocene dichloride (Cp2TiCl2) was found to be a novel and efficient catalyst for the transesterification between dimethyl carbonate (DMC) and phenol to diphenyl carbonate (DPC). Compared with other titanium esters, Cp2TiCl2 is more stable in air and can reach maximum catalytic activity at low catalyst amount. When the reaction was carried out between 150 and 180 degrees C, with a molar ratio of phenol to DMC of 1:1, a reaction time 10 h, a catalyst amount 0.5% (molar ratio to phenol), the conversion of phenol was 46.8%, and the selectivity of DPC and MPC was 54.9 and 43.4%, respectively. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：240 / 243

页数：4

共 16 条

[1] Determination of Mg, Ti and Cl in Ziegler-Natta catalysts by WDXRF [J].