| 固体酸催化光异构化合成富马酸二甲酯 |
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| 引用本文： | 方正法,俞善信,文瑞明.固体酸催化光异构化合成富马酸二甲酯[J].工业催化,2005,13(7):45-47. |
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| 作者姓名： | 方正法 俞善信 文瑞明 |
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| 作者单位： | 1.湖南师范大学化学化工学院，湖南 长沙 410081； 2.湖南城市学院化学与环境工程系，湖南 益阳 413049 |
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| 基金项目： | 湖南省教育厅科研基金资助项目(01C022) |
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| 摘 要： | 马来酸酐与甲醇在五水四氯化锡催化下发生酯化反应，所得产物马来酸二甲酯在光和溴存在下异构化成富马酸二甲酯。n(马来酸酐)∶n(甲醇)∶n(四氯化锡)为1.0∶5.0∶0.114时，回流反应3 h，该富马酸二甲酯收率达90.3%。比较了几种不同固体酸催化合成富马酸二甲酯的催化活性，结果表明该法操作方便，反应条件温和，产物收率高。
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| 关 键 词： | 富马酸二甲酯 四氯化锡催化剂 马来酸酐 甲醇 酯化 异构化 |
| 文章编号： | 1008-1143(2005)07-0045-03 |
| 修稿时间： | 2004年12月5日 |
Synthesis of dimethyl fumarate via light-assisted isomerization catalyzed by solid acid |
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| FANG zheng-fa,YU Shan-xin,WEN Rui-ming.Synthesis of dimethyl fumarate via light-assisted isomerization catalyzed by solid acid[J].Industrial Catalysis,2005,13(7):45-47. |
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| Authors: | FANG zheng-fa YU Shan-xin WEN Rui-ming |
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| Affiliation: | 1. College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China; 2.Department of Chemistry and Environmental Engineering, Hunan City University, Yiyang 413049, China |
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| Abstract: | Synthesis of dimethyl fumarate via esterification of maleic anhydride and methanol, catalyzed by stannic chloride pentahydrate,followed by isomerization of dimethyl maleate under light in the presence of bromine, was studied. Dimethyl fumarate yield of 90.3% was obtained under the following condition: n(maleic anhydride)n(methanol)n(stannic chloride)= 1.05.00.114, reflux reaction for 3 h. Catalytic activity of different solid acids were compared for synthesis of dimethyl fumarate. This route features simple operation, mild reaction condition and higher product yield. |
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| Keywords: | dimethyl fumarate stannic chloride catalyst maleic anhydride methanol esterification isomerization |
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