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Citation: YAO Jie, GAO Jun-Jie, ZENG Yi, WANG Yue, WANG Gong-Ying. Influences of Catalysts on the Transesterification of Dimethyl Carbonate and Phenol[J]. Chinese Journal of Applied Chemistry, ;2003, 20(9): 898-902. shu

Influences of Catalysts on the Transesterification of Dimethyl Carbonate and Phenol

1.
Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041

Corresponding author: WANG Gong-Ying,
Received Date: 16 December 2002
Available Online: 13 May 2003
Fund Project: 国家高技术研究发展计划(八六三)资助课题(2003AA321010) (八六三)资助课题(2003AA321010)

The catalytcal behavior of a series catalysts, including Lewis acid and base, titanates and tin compounds in transesterification of phenol(PhOH) and dimethylcarbonate(DMC) have been investigated. It is found that Pb(Ac0)₂·3H₂O and Ti(OBu)₄ exihibites higher activities, and the highest catalytic activity among above mentioned catalysts is Bu₂SnO. The effects of the ratio of reactants, amount of catalyst, reaction temperature and reaction time on the reaction were examined. It is found that at molar ratio of DMC:PhOH:Bu₂SnO=2.0:1.0:0.03, 175℃ and 14 h the conversion of phenol was 43.0%, with selectivity for methylphenyl carbonate, and diphenyl carbonate being 96.8% and 3.2%, respectively.
- dimethyl carbonate,
- phenol,
- transesterification,
- diphenyl carbonate,
- methyl phenyl carbonate
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