A versatile method for the reaction of N-alkyl-2-vinylazetidines with heterocumulenes has been established using a Pd(OAc)2/PPh3 catalyst system at room temperature. Minor modifications in the design of either substrate allowed for the optimization of product yield. Evidence for Ï-allylpalladium formation was obtained from the reaction of trans-1-butyl-4-methyl-2-vinylazetidine, which afforded a cis/trans mixture of products arising from stereochemical inversion through η 3-η 1-η 3 isomerization.
一种多功能的方法已被建立,用于在室温下使用Pd(OAc)2/PPh3催化剂体系,使N-烷基-2-
乙烯基氮杂
环丁烷与异构烯烃反应。对底物设计进行小幅修改可以优化产物的产率。通过反应反式-1-丁基-4-甲基-2-
乙烯基氮杂
环丁烷,获得了π-烯丙基
钯的形成证据,该反应产生了由于η³-η¹-η³异构化而导致的顺/反产物混合物。