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.
出处
《华东师范大学学报（自然科学版）》
CAS
CSCD
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
关键词
半缩醛内酯
蒈醛酸
菊酸
差向异构
epimerization
chrysanthemic acid
hemiacetal lactone ozonation
caronic acid
