azobis(isobutyronitrile) in neat (no solvent) High Pressure; (Ar); addn. of AIBN to stannane, addn. of GeCl4, heating to 150°Cfor 33 h in a sealed tube, cooling to room temp.; dissolving in CH2Cl2, vac. distn.;

in dichloromethane under nitrogen, 41°C; 48 h,; TLC monitoring, solvent removed (vac.); residue washed (warm petroleum ether; chromy. (silica, CH2Cl2/petroleum ether 2/1, v/v), crystn. from eluant solvent, elem. anal.;

in dichloromethane under nitrogen, 41°C, 24 h, decompn. >2 h;

in neat (no solvent) byproducts: n-Bu3SnCl3; Schlenk technique; Sn compd. was placed in ampule; evacuated; sealed; cooled at -10°c for 30 min; BCl3 was condensed; soln. was stirred at -10°C for 1 h and at room temp. overnight; cooled to -10°C; opened to vac. for 30 min; distd. at 40°C/0.05 mbar;