Indium(III) Bromide Catalyzed Rapid Propargylation of Heteroaromatic Systems by α-Aryl-Substituted Propargyl Alcohols
作者:J. Yadav、B. Reddy、K. Rao、G. Kumar
DOI:10.1055/s-2007-990797
日期:2007.10
pyrrole, and furan underwent smooth coupling with propargylic alcohols in the presence of 10 mol% of indium(III) bromide under mild conditions to furnish exclusively propargylated heterocycles in excellent yields and high regioselectivity. The use of indium(III) bromide makes this procedure simple, convenient, and practical. The hydroxy groups of the propargylic alcohols were simply replaced by the nucleophiles
在温和条件下,在 10 mol% 溴化铟 (III) 存在下,多种杂芳族化合物(如吲哚、咔唑、吡咯和呋喃)与炔丙基醇平滑偶联,以优异的收率和高区域选择性提供完全炔丙基化的杂环。溴化铟 (III) 的使用使该过程简单、方便且实用。炔丙醇的羟基以 SN 2' 方式简单地被亲核试剂取代。