Published online by Cambridge University Press: 01 February 2011
Functional trialkynylorganotins were obtained by alkynylation of the corresponding organotin trichlorides. When functional organotin trichlorides were not stable, a selective monoalkynylation of tetraalkynyltins by Grignard reagents was used. It was the first example of selective monoalkylation reactions of symmetrically tetrasubstituted tin compounds. Then, reactions of the functional trialkynylorganotins with alcohols, water and carboxylic acids afforded respectively the corresponding functional monoorganotin alkoxides and oxides, and monoorgano-oxotins carboxylates.