Convenient one-step syntheses of tri-n-butyltin bromide or iodide and di-n-butyltin dibromide or diiodide from the corresponding organotin chlorides

Abstract Tri-n-butyltin bromide or iodide and di-n-butyltin dibromide or diiodide may be conveniently prepared from the corresponding organotin chlorides by tetra-n-butylammonium halide-catalyzed halogen redistribution reactions with suitable alkyl bromides or iodides. However, similar transformations are not feasible for trimethylhalosilanes.