in diethyl ether; toluene 1.44M Et2O soln. of NeophMgCl (1.7-2.05 equiv.) dropwise with stirring added to toluene soln. of SnCl4 (1 equiv.) under N2 at room temp., heatedat reflux for 3 h, left at room temp. for 12 h; aq. satd. soln. NH4Cl added, organic layer separated, aq. layer extracted with Et2O, combined organic extracts dried over MgSO4, solvent removedunder vac., recrystd. from n-heptane; ratio of Nph3SnCl/Nph2SnCl2 was 6 0/40-24.5/75.5, NMR;

hydrogenchloride in ethanol aq. HCl was added to a satd. soln. of distannoxane in EtOH, mixt. was stirred overnight followed by heating at 56-60°C for a few hours; suction filtration;

in diethyl ether; benzene final reflux in benzene;

in diethyl ether; water Sonication; complex in diethyl ether mixed with aq.HCl, sonicated for 5 min; evapd., crystd.(diethyl ether);

in tetrachloromethane byproducts: CHCl3; decompn. of NPh3SnH in CCl4 at 25 °C, 2h; monitoring by IR;

sodium hydroxide in isopropyl alcohol

in diethyl ether; benzene at 60°C, 4 h;;

in not given