The electrochemical reduction of some fluorohalocarbons in the presence of trimethylchlorosilane is followed by formation of the corresponding fluoroalkyltrimethylsilanes. CF3SiM3, CFCl2SiMe3, CF3CCl2SiMe3 and (EtO)(2)P(O)CF2SiMe3 were obtained with current efficiency 20-50%. Voltammetric data are presented. (C) 1997 Elsevier Science S.A.