2,2-dimethyl-5-(4-(methylsulfonyl)benzoyl)-1,3-dioxane-4,6-dione 在
silica gel 、 ethyl acetate petroleum ether 作用下,
以
乙醇 为溶剂,
反应 16.0h,
以afforded 1.2 g (80%) of ethyl 3-(4-(methylsulfonyl)phenyl)-3-oxopropanoate as a yellow solid的产率得到3-(4-methanesulfonyl-phenyl)-3-oxo-propionic acid ethyl ester