Organometallic reactions. Part XVII. Some exchange and addition reactions of aminodimethyltin compounds

Abstract

Dimethyltin bis(diethylamide) reacts with dimethyltin dihalides to produce the dimethyltin halide diethylamides; these are unstable, but can be characterised as their adducts with carbon disulphide.

NN′N″-Triethylhexamethylcyclotristannazane, (Me₂Sn·NEt)₃, disproportionates when treated with organotin chorides, R_nSnCl_4–n, to give distannazanes of general formula R_nSnCl_3–n·NEt·SnMe₂Cl. Treatment of 1,1,3-trichloro-2-ethyl-1,3,3-trimethyldistannazane with 2,2′-bipyridyl gives Me₂SnCl₂, bipy and sym-trichloro-NN′N″-triethyltrimethylcyclotristannazane. A mixture of dimethyltin sulphide and the triethylhexamethylcyclotristannazane exists in equilibrium with the cyclotristannazadithiane and the cyclotristannadiazathiane.