in diethyl ether byproducts: bineophyl; under Ar, Grignard reagent (prepared from Mg and neophylchloride), stirred under reflux (18 h), add. to GaCl3 soln. (30 min), stirred under reflux (18 h); vac. dest. at room temp., extraction from MgCl2, washed (pentane), vac. dest. at 120-210°C (160-210°C pure product), recrystn. (pentane, -20°C); elem. anal.;

in tetrahydrofuran byproducts: NaCl; absence of air and moisture; slow addn. of 1 equiv. Ga-compd. to naphthalenide soln. (prepd. by stirring equimolar amts. of Na and naphthalenefor 18 h), stirring (-78°C, 18 h), slow warming to room temp., stirring for 14-19 h; solvent removal (vac.), extn. into C6H6, chromy. (Bio-Beads), recrystn.(pentane/C6H6=5:1 v/v); elem. anal.;

in tetrahydrofuran; THF-d8 (tetrahydrofuran-d8) absence of air and moisture; slow addn. of Ga-compd. (in THF-d8) to naphthalenide soln. (prepd. by stirring Li and naphthalene in THF), stirring (-78°C, 30 min), then standing for 25 d at room temp.; not isolated, reaction followed by (1)H-NMR spectroscopy;