Alkoxysilane formation from the interactions of perhalogeno-ketones with alkylthiosilanes and disilthianes
Abstract
The perhalogeno-ketones perfluoroacetone, chloropentafluoroacetone, 1,1,3-trichlorotrifluoroacetone, and 1,3-dichlorotetrafluoroacetone cause fission of the silicon–sulphur bonds in alkylthiosilanes and disilthianes to form alkoxysilanes. These are of the general types MenSi[O·C(RF,Cl)2·SR]4–n and [Me3Si·O·C(RF,Cl)2]2S; in addition to characterisation, points of interest in the n.m.r. spectra of these compounds are reported. The formation of the polyfluoroalkoxygermane Me3Ge·O·C(CF3)2·SEt from the insertion of hexafluoroacetone into a germanium–sulphur bond is reported.