Catalyst-free tandem halogenation/semipinacol rearrangement of allyl alcohols with sodium halide in water
作者:Zhixuan Zeng、Xudong Xun、Liwu Huang、Jiecheng Xu、Gongming Zhu、Guofeng Li、Wangsheng Sun、Liang Hong、Rui Wang
DOI:10.1039/c8gc00478a
日期:——
tandem halogenation/semipinacol rearrangement of allyl alcohols with NaX (X = Cl, Br, I) in H2O under open-air conditions has been demonstrated. The catalyst-free process affords various halogenated products in moderate to excellent yields (up to 98%). The features of this procedure include catalyst-free process, aqueous medium, low-cost sodium halide, open-air conditions, excellent yield and gram scalable
通过在H 2中与NaX(X = Cl,Br,I)的烯丙醇串联卤代/ semipinacol重排,一锅合成具有α-季碳中心的β-卤代酮的经济,便捷,环境友好的方法露天条件下的O已被证明。无催化剂工艺可提供中等至极好的收率(高达98%)的各种卤化产物。该程序的特点包括无催化剂工艺,水性介质,低成本卤化钠,露天条件,优异的收率和克级可扩展制备。