Electrochemical studies of Group 3 alkyl derivatives. Part 1. Synthesis of trimethylgallium adducts

Electrolysis of dimethylmagnesium in tetrahydrofuran (thf) with a gallium anode yields the adduct GaMe3·thf directly; the trialkylamine and trialkylphosphine adducts GaMe3·L (L = NEt3, PMe3, or PEt3) are obtained by direct addition of an excess of L to GaMe3·thf. Free GaMe3 is obtained by reaction of Mel with a Mg–Ga alloy in an ether solvent.