| 钛酸酯催化碳酸二甲酯与苯酚酯交换反应 |
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| 引用本文： | 高俊杰,姚洁,梅花,王公应. 钛酸酯催化碳酸二甲酯与苯酚酯交换反应[J]. 催化学报, 2001, 22(4): 405-407 |
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| 作者姓名： | 高俊杰 姚洁 梅花 王公应 |
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| 作者单位： | 中国科学院成都有机化学研究所, |
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| 基金项目： | 沙隆达集团资助项目，， |
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| 摘 要： | The transesterification of phenol and dimethyl carbonate (DMC) to diphenyl carbonate (DPC) was studied using tetrabutyl titanate and tetraphenyl titanate as catalysts. The main product was found to be methyl phenyl carbonate (MPC) which is an intermediate of the reaction. The selectivity for DPC was improved when increasing the phenol/DMC molar ratio or prolonging the reaction time. The phenol conversion, selectivity for MPC and DPC were 47 4%, 90 9% and 9 14%, respectively, when the transesterification reaction approached equilibrium under the conditions of 175 ℃, 25 h and DMC∶phenol∶ Ti(OBu) 4 molar ratio of 1 5∶1∶0 05. The selectivity for DPC could reach 12.2% when the reaction time was 30 h. The tetrabutyl titanate catalyst showed a higher catalytic activity than tetraphenyl titanate.
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| 关 键 词： | 碳酸二甲酯 苯酚 酯交换反应 碳酸二苯酯 钛酸四丁酯 钛酸四苯 |
| 文章编号： | 0253-9837(2001)04-0405-03 |
| 收稿时间： | 2001-08-25 |
Transesterification of Dimethyl Carbonate and Phenol with Titanate Catalysts |
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| GAO Junjie,YAO Jie,MEI Hua,WANG Gongying. Transesterification of Dimethyl Carbonate and Phenol with Titanate Catalysts[J]. Chinese Journal of Catalysis, 2001, 22(4): 405-407 |
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| Authors: | GAO Junjie YAO Jie MEI Hua WANG Gongying |
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| Affiliation: | GAO Junjie,YAO Jie,MEI Hua,WANG Gongying * |
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| Abstract: | |
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| Keywords: | dimethyl carbonate phenol transesterification diphenyl carbonate tetrabutyl titanate tetraphenyl titanate |
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