The interaction of butadiene with trimethylvinylsilane over a nickel chloride catalytic system in the presence of an organoaluminum Lewis acid and triphenylphosphine proceeds by telomerization and results in the formation of telomer homologs of general formula (CH3CHCHCH2)nCSi(CH3)3CH2, n = 1–5. The reaction is accompanied by the formation of a dimer of trimethylvinylsilane 2,4-bis(trimethylsilyl)-1-butene