著者所属:Faculty of Pharmaceutical Sciences, Hokkaido University Faculty of Pharmaceutical Sciences, Hokkaido University Faculty of Pharmaceutical Sciences, Hokkaido University
Thermal elimination of β-ketosulfoxides prepared from esters of m-methoxyphenyl-butyric acid and sulfoxides in the presence of methylcyclopentanedione gave easily a trione and a dione, key intermediates in the Smith's synthesis of estrone.