磷酰基乙酸三乙酯 、
3,4-epoxy-2,6,6-trimethylcycloheptanone 在
sodium hydroxide 、
甲基三辛基氯化铵 作用下,
反应 2.0h,
生成
Z-2,6,6-trimethyl-3,4-epoxycycloheptaneylidene-2-hydroxy-4,7,7-trimethyl-6-oxocycloheptaneacetic acid ethyl ester 、 E-2,6,6-trimethyl-3,4-epoxycycloheptaneylidene-2-hydroxy-4,7,7-trimethyl-6-oxocycloheptaneacetic acid ethyl ester