in cyclohexane Kinetics; equimolar amts. at 80°C;;

aluminium trichloride in dichloromethane T=20°C; 20 h;

sodium hydroxide; sodium in octane

NaCl in dichloromethane byproducts: AlCl3*NaCl, (C4H9)4Sn, (C6H5CH2)(C4H9)3Sn; further byproducts: (C6H5CH2)3(C4H9)Sn, (C6H5CH2)4Sn; react. under N2, heating NaCl and Bu3Al (120°C, 30 min) with stirring, cooling, successive addn. of (C6H5CH2)2SnCl2, stirring at a temp. not higher than 30°C or at 130°C for 1 h; hydrolysis of the liq. with Ca(OH)2, filtration on a glass frit, yield at 20°C: 80 percent, yield at 130°C: >99 percent;

in dichloromethane Kinetics; byproducts: AlCl3; react. under N2, cooling a soln. of (C6H5CH2)2SnCl2 in CH2Cl2, addn. of (C4H9)3Al via syringe (molar ratio = 3:2); hydrolysis with CH2Cl2 satd. with water and then with 1 N HCl, decanting the org. layer, drying, evapn. under vac., incomplete react.;

diethyl ether; phosphorus trichoride

byproducts: C4H8;