Cleavage of α,Β- and Β,υ-mono- and diunsaturated organyl alkenyl sulfides by trialkyl- and trialkoxysilanes

Research paper by M. G. Voronkov, N. N. Vlasova, S. A. Bol'shakova

Indexed on: 01 Jan '81Published on: 01 Jan '81Published in: Russian Chemical Bulletin


Organyl alkenyl sulfides of general formula RS(CH2)nCH=CH2 react with triethyl- and triethoxysilane in the presence of PdCl2(C6H5CN)2 and P(C6H5)3, with cleavage of the S-C bond and the formation of the corresponding Si-substituted organylthiosilanes RSSiR3' and disilthianes R3'SiSSiR3'. The reaction is accompanied by the disproportionation of the starting silanes R3'SiH with the formation of R4'Si. Hydrosilylation products were not detected.