a formal [3 + 2]-annulation reaction of spiro-epoxyoxindoles have been developed and can be accessed simply by changing the reaction conditions. This method has been successfully employed for the synthesis of spiro(pyrrolidinyloxindole), 3a-allylhexahydropyrrolo[2,3-b]indole, and furanoindoline.
已经开发出有效的
路易斯酸催化的区域选择性C 3-烯丙基化和螺-环氧氧
吲哚的正式[3 + 2]-环化反应,并且可以通过改变反应条件来简单地获得。该方法已成功地用于合成螺(
吡咯烷基二氧杂
吲哚),3a-烯丙基六氢
吡咯并[2,3- b ]
吲哚和
呋喃二氢
吲哚。