S-Isopetasin 在
间氯过氧苯甲酸 作用下,
以
二氯甲烷 为溶剂,
反应 0.67h,
生成 (Z)-3-Methanesulfinyl-acrylic acid (1R,2R,8aR)-7-isopropylidene-1,8a-dimethyl-6-oxo-1,2,3,4,6,7,8,8a-octahydro-naphthalen-2-yl ester 、 (Z)-3-Methanesulfonyl-acrylic acid (1R,2R,8aR)-7-isopropylidene-1,8a-dimethyl-6-oxo-1,2,3,4,6,7,8,8a-octahydro-naphthalen-2-yl ester 、 (E)-3-Methanesulfonyl-acrylic acid (1R,2R,8aR)-7-isopropylidene-1,8a-dimethyl-6-oxo-1,2,3,4,6,7,8,8a-octahydro-naphthalen-2-yl ester