Stepwise Carbon Disulfide Insertion into the Sn−C Bonds of a Diarylstannylene1

Bis(2,4,6-tri- tert -butylphenyl)stannylene reacted with carbon disulfide by stepwise insertion of CS 2 into the Sn−C bonds to furnish the aryltin(II) arenedithiocarboxylate ( 6 ) and tin(II) bis(arenedithiocarboxylate) ( 7 ). The structures of the three- and four-coordinated stannylenes 6 and 7 were determined by X-ray crystallography.