Unsaturated epsilon-lactones bearing an alpha-arylsulfonyl or alpha-arylsulfoximinyl substituent undergo stereoselective transannular, decarboxylative Claisen rearrangement to give substituted vinylcyclopropanes.
带有α-芳基磺酰基或α-芳基磺
酰亚胺基的取代基的不饱和ε-内酯进行立体选择性的跨环,脱羧的克莱森重排,得到取代的
乙烯基环丙烷。