phenyl-magnesium bromide in diethyl ether; benzene addn. of the germane in benzene to the freshly prepd. Grignard compoundin ether; refluxing for 3.5 h;; hydrolized with ice and dilute hydrochloric acid; chromy. (silica gel, hexane); fractional distn.;;

magnesium in tetrahydrofuran byproducts: MgBr2; Sonication; the mixt. of magnesium, germane and halogen-compound in THF was sonicated for 2 h (inert atm.); the mixt. was washed with satd. soln. of NaCl, extd. with diethyl ether,the organic layer was dried over MgSO4, the solvent was removed under r educed pressure, column chromy. (petroleum ether-diethyl ether 95/5);

in methanol at room temp. 4 days; hydrolysis of reaction mixture; detected by GC-MS and NMR;

in methanol at room temp. 4 days; hydrolysis of reaction mixture; detected by GC-MS and NMR;

in pentane byproducts: N2; 1 equiv of diazoester adding to a soln. of equimolar mixt. of Ge derivs., allowing to stand for 48 h at 20°C, orange-red oil decanting, PhMgBr adding to a supernatant; identified as adduct with ClCH2OMe;

in methanol at room temp. 4 days; hydrolysis of reaction mixture; detected by GC-MS and NMR;

diethyl ether; benzene

in hexane byproducts: C12H26, C6H6; Irradiation (UV/VIS); irradiation (450 W medium-pressure Hg lamp, Vycor filter) under argon atmosphere for 20 min; distn.; detected by GC-MS;