Reactions of metal–nitrogen compounds with unsaturated substrates. Part I. Reactions of aminostannanes, stannazanes, and stannylamines with carbon dioxide, carbon disulphide, and carbonyl sulphide

Abstract

Aminostannanes, stannazanes, and stannylamines react with carbon dioxide to give organotin carbamate addition products, but with carbon disulphide, organotin dithiocarbamate adducts are not always isolated and may give rise to organotin sulphide, isothiocyanates, and thiourea as alternative products. For the aminostannylation of carbonyl sulphide, evidence is presented to show that addition takes place across the CS bond rather than the CO bond. It is suggested that the preferred formation of tin–sulphur bonds is consistent with the relative strengths of tin–oxygen and tin–sulphur bonds.