aluminium trichloride in benzene N2 atm.; heating (50°C); evapn. (vac.), recrystn. (pentane, -80°C);

in further solvent(s) byproducts: C6H6; liq. HCl, 10 time excess; 16 h, 0°C; evapn., recrystn. (pentane, -80°C);

HCl/ AlCl3 sublimation in vac. under highly pure N2;

in pentane byproducts: SnCl2, HCl, H2; (N2); std. Schlenk technique; soln. of SnCl4 (5 equiv.) in pentane was added to soln. of Si compd. (1 equiv.) in pentane at -30°C; stirred at room temp. for 160 h; filtered; concd. (vac.); not septd.;