反式蒈醛酸酯经差向异构化制取半缩醛内酯的研究  

Study on the Epimerization of Trans-Caronic Acid Ester to Produce Hemiacetal Lactone

作　　者：陈良[1] 吴蕙君[1] 

机构地区：[1]华东师范大学化学系

出　　处：《华东师范大学学报（自然科学版）》1990年第3期61-65,共5页Journal of East China Normal University(Natural Science)

基　　金：中科院科学基金

摘　　要：反式菊酸酯经臭氧化得蒈醛酸酯,然后在甲酸钠的甲醇溶液中发生差向异构,获得顺式蒈醛酸及它的半缩醛内酯的混合物,收率从原来文献报导的27％提高到60％。Trans-caronic acid ester (methyl 2, 2-dimethyl-3-formyl-cyclo-propanecarboxylate), which is obtained by ozonolysis of methyl chrysanthemate, undergoesepimerization in sodium methoxide-methanol to give a equilibrium products ofcis-2, 2-dimethyl-3-formyl-cyclopropanecarboxylic acid and hemiacetal lactonewith a good yield.

关 键 词：半缩醛内酯 蒈醛酸 菊酸 差向异构 

分 类 号：TQ225.241[化学工程—有机化工]