catalyst: azobisisobutyronitrile in neat (no solvent) Irradiation (UV/VIS); equimolar amts. of alkene and Me3SnH was irradiated with UV light (Hg high pressure lamp) under Ar in the presence of a catalytic amt. of AIBN, reaction was monitored by IR and (1)H NMR spectroscopy; distilled under reduced pressure; elem. anal.;