New Application of <i>N</i>-Halosuccinimide/PPh<sub>3</sub> for the Halogenation of Propargyl Alcohols to Haloallenes
作者:Xin Du、Yao Dai、Ren He、Shirong Lu、Ming Bao
DOI:10.1080/00397910902883587
日期:2009.10.12
Abstract An efficient and convenient new method has been developed for the preparation of haloallenes from propargyl alcohols by a reagent combination of N-halosuccinimide and triphenylphosphine. Chloroallenes 2 and bromoallenes 3 were obtained exclusively in moderate to good yields with regioselectivity.