Antimony: Annual survey covering the year 1992

One-pot palladium-catalyzed cross-coupling reaction of aryl iodides with stannylarsanes and stannylstibanes

[reaction: see text] The reaction of Ph(3)As and Ph(3)Sb with Na metal in liquid ammonia gives Ph(2)M(-) ions (M = As, Sb) that react with n-Bu(3)SnCl to afford n-Bu(3)Sn-MPh(2) (1). The ammonia was allowed to evaporate, and toluene was added. The Pd-catalyzed cross-coupling reactions of these stannanes with aryl iodides afford functionalized triaryl-arsanes and triaryl-stibanes in high yields in a one-pot procedure (80-99%). The use of the commercially available, air-stable, and inexpensive Ph(3)M as the initial reagent and the one-pot process make this method a useful approach. This is the first report on the synthesis of 1 and the exploration of its chemistry.