(Ethoxycarbonylcyclopropyl)carbinyl anions stabilized by phenylsulfonyl or phenylthio groups undergo one-pot nucleophilic ring fission, alkylation and elimination of the sulfur function to give substituted dienoates or dienedioates.
                                    通过苯磺酰基或苯
硫基基团稳定的(乙氧羰基环丙基)羰基阴离子经历一锅亲核裂变,烷基化和消除
硫的作用,得到取代的二烯酸酯或二烯二酸酯。