Synthesis and Reactions of Some Crowded Triorganylbismuthines

Article abstract of DOI:10.1246/bcsj.65.3504

Bismuth trichloride reacts smoothly with mesityl- and 2,4,6-triisopropylphenylmagnesium bromides in boiling tetrahydrofuran to form the corresponding trialkylbismuthines in good yields, white a similar reaction with 2,4,6-triisopropylphenylmagnesium bromide halts a diarylation stage, giving chlorobis(2,4,6-triisopropylphenyl)bismuthine as the sole product.Several crowded alkyl-, alkenyl-, and alkynyldiarylbismuthines have been prepared from the above diarylchlorobismuthine through the reaction with an appropriate organolithium reagent.