Phenylselenating agents, in which the counter ion is non-nucleophilic, react with certain alkenyl-substituted β-ketoesters to afford cyclized products, some of which can be further rearranged using SnCl4.
抗衡离子为非亲核性的苯
硒化剂与某些烯基取代的β-
酮酸酯反应,生成环化产物,其中一些可以使用SnCl 4进行进一步重排。