Pentaarylantimony and pentaphenylbismuth arylate oranotin halides R3SnX and
R2SnX2 (R = Alk, Ar; X = Cl, Br) in toluene at room temperature to aryltin
derivatives R3SnAr and R2SnArX (initial reagent molar ratio 1:1) or R2SnAr
2 (2:1) in 78-95% yield.