Iodomethylation of S-Silylorganyl Mercaptoazole Derivatives with α-Iodoketones

The iodomethylation of 2/3-[dimethyl(phenyl)silylmethylthio]-1,3-benzoimidazoles or -1,2,4-triazole with α-iodoketones of the aliphatic and aromatic series in the absence of basic media and solvents leads to formation of unknown salts based on 2/3-mercaptoazolium cations. Reaction of 2-[dimethyl(phenyl)silylmethylthio]-1,3-benzoxazole with α-iodoketones afforded bis(benzoxazol-2-yl)disulfonium derivatives.