magnesium in diethyl ether (N2); a mixture of (CH3)3SnCH2I and Mg in ether refluxed for 1 h; a soln. of (CH3)3GeBr added dropwise over a period of 45 min; refluxed for 1 h and stirred overnight; treated with saturated NH4Cl; distd.;

magnesium in not given

dibenzoyl peroxide in hexane Irradiation (UV/VIS); a soln. in hexane was UV-irradiated for 15 h with stirring at -50 to -70°C (inert atm.); filtered, evapd. at reduced pressure and room temp., distilled in vac., not sepd., detected by NMR spectra;

in diethyl ether; pentane addn. of soln. of Me3SnCl to soln. of Li-compound (prepd. in situ) at -120°C, warming to room temp.; shaking with water, drying and concn. of org. phase; anal. and GC;

in neat (no solvent) byproducts: ethylenebis(diphenylphosphine); under protective gas mixt. of (CH3)3SnCHCH2 and (C6H5)2PH in presence of AIBN without solvent, heated at 80-90°C during 10 h;

in neat (no solvent) byproducts: trimethyltin bromide; under Ar, molar ratio stannylalkane : Me2SnBr2 = 1:2, heated at 80-90°C for 8 h; Me3SnBr removed in vac., fractional crystn., elem. anal.;