A perbenzylated 3,3-difluorinated hexono-1,5-lactone was prepared in several steps. Reaction of this lactone with MeOH/p-TsOH followed by a treatment with ion-exchange resin led to the formation of an exocyclic oxetane derived vinylether. Similar reaction with ammonia gave the corresponding carboxamido substituted oxetane in good yields.
在几个步骤中,制备了苄基化的3,3-二
氟己基-1,
5-内酯。该内酯与MeOH / p- TsOH反应,然后用离子交换
树脂处理导致形成环外环氧杂
环丁烷衍生的
乙烯基醚。与
氨类似的反应以良好的产率得到相应的羧酰胺基取代的氧杂
环丁烷。