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。