| Lewis酸催化酯交换合成碳酸二苯酯研究 |
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| 引用本文： | 李光兴,梅付名,莫婉玲,浦永佳. Lewis酸催化酯交换合成碳酸二苯酯研究[J]. 精细化工, 2000, 17(3): 170-172 |
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| 作者姓名： | 李光兴 梅付名 莫婉玲 浦永佳 |
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| 作者单位： | 华中理工大学,化学系,湖北,武汉,430074 |
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| 摘 要： | 研究了几种Lewis酸催化酯交换合成碳酸二苯酯 (DPC) ,其中AlCl3 具有最高的催化活性。在常压下 ,1 6 0～ 1 90℃时 ,当n (苯酚 )∶n (碳酸二甲酯 )∶n (AlCl3 ) =4∶1∶0 0 6 ,反应时间 1 4h ,碳酸二甲酯 (DMC)转化率为 2 5 5 % ,DPC产率 2 2 3% ,碳酸甲苯酯 (MPC)产率 2 2 % ,苯甲醚1 0 % ,DPC的选择性 87 5 %。
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| 关 键 词： | 碳酸二苯酯 酯交换 Lewis酸 |
Synthesis of Diphenyl Carbonate by Transesterification of DMC and PhOH over Lewis Acid Catalysts |
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| LI Guang-xing,MEI Fu-ming,MO Wan-ling,PU Yong-jia. Synthesis of Diphenyl Carbonate by Transesterification of DMC and PhOH over Lewis Acid Catalysts[J]. Fine Chemicals, 2000, 17(3): 170-172 |
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| Authors: | LI Guang-xing MEI Fu-ming MO Wan-ling PU Yong-jia |
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| Affiliation: | LI Guang-xing,MEI Fu-ming,MOWan-ling,PU Yong-jia;(Department of Chemistry,Huazhong University of Science & Technology,Wuhan430074,China) |
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| Abstract: | Diphenyl carbonate(DPC) was synthesized by transesterification of dimethyl carbonate(DMC) with phenol(PhOH) in the presence of Lewis acid catalysts.Of the several catalysts tested,AlCl-3 has highest activity for the reaction.When the reaction was carried out for 14h at n(PhOH)∶n(DMC)∶n(AlCl-3)=4∶1∶0 06 and temperature 160-190 ℃,the total conversion of DMC was 25 5%,the selectivity for DPC was 87 5% and the yields of DPC,methylphenyl carbonate and anisole were 22 3%,2 2% and 1 0% respectively. |
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| Keywords: | diphenyl carbonate transesterification Lewis acid |
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