A facile construction of a heteropolycyclic framework is developed by exploiting the dual functionalization of allene. On treatment of phenethyl alcohol or amine bearing a terminal allene with the Brønsted acid, two consecutive reactions to allene, nucleophilic addition of heteroatom and the Friedel–Crafts reaction, occurred to give 2-oxa- or azabicyclo[2.2.2]octane skeleton.
通过利用烯的双重官能化,开发出了一种简便的杂多环框架结构。用布氏酸处理带有末端烯的
苯乙醇或胺时,烯会发生两个连续的反应,即杂原子的亲核加成反应和弗里德尔-卡夫斯反应,从而得到 2-氧杂或氮杂
双环[2.2.2]辛烷骨架。