溴化钠和过硫酸钾催化下马来酸单甲酯的构型转化反应  

Isomerization of Monomethyl Maleate Catalyzed by the Combination of Sodium Bromide and Potassium Persulfate

作　　者：李贵华[1] 屈永年[1] 龚坚[1] 

机构地区：[1]郧阳医学院化学教研室

出　　处：《郧阳医学院学报》1997年第3期139-141,共3页Journal of Yunyang Medical College

基　　金：十堰市科委资金资助

摘　　要：目的：探讨溴化钠和过硫酸钾催化下马来酸单甲酯的构型转化反应。方法：选择不同的反应条件，观察对马来酸单甲酯构型转化反应的影响。结果：当马来酸单甲酯的浓度约为５０％，溴化钠和过硫酸钾的用量分别为０．５％和１．５％（依据马来酸单甲酯计算），反应时间为６０ｍｉｎ时，马来酸单甲酯构型转化反应的产率最高。结论：溴化钠和过硫酸钾催化下的马来酸单甲酯构型转化反应具催化剂用量少，反应时间短，产率高等优点。Objective:To investigate the isomerization of monomethyl maleate catalyzed by the combination of NaBr and K2S2O8.Methods:Effects on the isomerization were determined in different reaction conditions.Results:The greatest yield of isomerization was obtained when monomethyl maleate at a concentration of 50% reacted for 60 minutes with NaBr and K2S2O8 weighing 0.5% and 1.5% of the monomethyl maleate respectively.Conclusion:The isomerization of monomethyl maleate catalyzed by the combination NaBr and K2S2O8 has the advantages of small consumption,short reaction time and high yield.

关 键 词：溴化钠 过硫酸钾 催化 马来酸单甲酯 构型转化 

分 类 号：O623.624.1[理学—有机化学]