in diethyl ether react. under dry Ar, stirring at room temp. (0.5 h); distilling, elem. anal.;

lithium aluminium tetrahydride in diethyl ether byproducts: H2; in abscence of light, warming, hydrolyzing with cooling, separating of ether layer, drying with Na2SO4, standing for 14 d; filtering, evapn.,;

in hexane evaccuated ampouls, exclusion of oxygen and moisture; addn. of Sb-compd. to soln. of V-compd. in hexane, heating (1 h, 40°C); cooling (20°C, sepn. of crystals of V-compd., distn. of Sb-compd.;

lithium in tetrahydrofuran; diethyl ether byproducts: LiBr, Et2Te2; inert atmosphere; treatment of EtI with Li (in ether), addn. to frozen suspn. of Te in THF, stirring at room temp., dropwise addn. of 1 equiv. Et2SbBr, stirring at room temp. for 2 h; solvent removal (vac.), extn. into pentane, decantation from LiBr, solvent removal (vac.); product mixt. not sepd., detd. by NMR spectroscopy;