Bismuth(III) Chloride Catalyzed Cycloisomerization of Enynes
作者:Zezhou Wang、Shiyue Fang
DOI:10.1002/ejoc.200900819
日期:2009.11
Several simple bismuth(III) salts were screened for the suitability to catalyze the cycloisomerization of enynes. Among them, BiCl3 gave the best results. Under the optimized reaction conditions, eight substrates were studied, and acceptable to excellent isolated yields were obtained. Consistent with data in the literature, electron-deficient alkynes were found to be better substrates for the reaction