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对甲苯磺酸催化合成戊二酸二甲酯的研究
Study on the catalytic synthesis of dimethyl glutarate with p-toluene sulphonic acid
【摘要】 本文研究了对甲苯磺酸催化戊二酸和甲醇合成戊二酸二甲酯的反应,探讨并找到了最佳的反应条件,收率达到94.5%。最佳条件为:以环己烷为带水剂,醇酸摩尔比为10∶1,催化剂用量戊二酸的质量百分比为20%,在回流状态下反应3h。
【Abstract】 The esterification reaction between glutaric acid and methanol with ptoluene sulphonic acid as catalyst was studied.The optimum reaction conditions in 94.5% yield were as following:the molar ratio of alcohol to acid is 10:1,amount of catalyst used 20% by weight of the glutaric acid,the reaction time is 3h under refluxing using cyclohexane as azeotropic solvent.
【关键词】 戊二酸二甲酯;
对甲苯磺酸;
催化;
合成;
【Key words】 dimethyl glutarate; p-toluene sulphonic acid; catalysis; synthesis;
【Key words】 dimethyl glutarate; p-toluene sulphonic acid; catalysis; synthesis;
- 【文献出处】 化学工程师 ,Chemical Engineer , 编辑部邮箱 ,2006年01期
- 【分类号】O623.624
- 【被引频次】5
- 【下载频次】313