2-(2-methoxyethoxy)ethyl 4-hydroxy-4-[3,4(methylenedioxy)phenyl]-2-butynoate 在
manganese dioxide
magnesium sulfate 、 silica gel 、 methylene chloride diethyl ether 作用下,
以
二氯甲烷 为溶剂,
反应 2.0h,
以There was obtained 2-(2-methoxyethoxy)ethyl 3-[3,4-(methylenedioxy)-benzoyl]propiolate as a yellow oil的产率得到2-(2-methoxyethoxy)ethyl 3-[3,4-(methylenedioxy)-benzoyl]propiolate