作者:Yoshihiro Matano、Masamichi Kinoshita、Hitomi Suzuki
DOI:10.1246/bcsj.65.3504
日期:1992.12
Bismuth trichloride reacts smoothly with mesityl- and 2,4,6-triisopropylphenylmagnesium bromides in boiling tetrahydrofuran to form the corresponding triarylbismuthines in good yields, while a similar reaction with 2,4,6-triisopropylphenylmagnesium bromide halts at diarylation stage, giving chlorobis(2,4,6-triisopropylphenyl)bismuthine as the sole product. Several crowded alkyl-, alkenyl-, and alkyn-yldiarylbismuthines have been prepared from the above diarychlorobismuthine through the reaction with an appropriate organolithium reagent.
三氯化铋与美克基和2,4,6-三异丙基苯基溴化镁在沸腾的四氢呋喃中顺利反应,生成相应的三芳基铋化合物,产率良好;而与2,4,6-三异丙基苯基溴化镁的类似反应在二芳基化阶段止步,仅生成氯代双(2,4,6-三异丙基苯基)铋化合物作为唯一产物。从上述二氯化铋通过与适当的有机锂试剂反应,可以合成几种拥挤的烷基、烯基和炔基二芳基铋化合物。