in benzene GaMes3 and GaCl3 in 1:2 molar ratio in benzene were stirred at room temp. for 18 h under inert atmosphere; benzene was removed by vac. distn., residue was washed with pentane, dried under high vac. for several hours; product can be further purifued by vac. sublimation at 140°C; elem. anal.;

water in toluene Hydrolysis;

KOH in tetrahydrofuran byproducts: KCl; Ga-compds. in THF stirred for 30 h at room temp., addn. of KOH, stirred for 5 days at room temp. under inert atmosphere; filtered, filtrate evapd., washed with hexane, crystn. (THF);

H2O in toluene soln. of Ga-compd. in toluene at -78°C splashed with water, slowly warmed to room temp. under stirring, stirred for 3 d; evapn. of volatile components in vac., washed with hexane, dried (15 h, vac.);

in diethyl ether inert atmosphere; addn. of MesMgBr (prepared from Mg and MesBr) to GaCl3 soln., refluxing (16 h); solvent removal (vac.), repeated extn. (pentane), recrystn. (pentane), sublimation (160-170°C, vac.); elem. anal.;

in toluene under N2 atm. soln. Ti and Ga complexes in toluene was heated at 100°C for 14 h; soln. was filtered hot, volatiles were removed in vacuo, residue was dissolved in hexane, concd., and left at +2°C for 5 days;