Et3N in ethanol; hexane; toluene (N2); standard Schlenk technique; HSiCl3 was added via syringe to soln. of GeCl4 in hexane at 0°C; mixt. stirred for 30 min; Et3N was added dropwise; cold bath was removed; mixt. was stirred for 1 h; lower phase septd.; washed (hexane); toluene; added under N2; EtOH and Et3N added; mixt. stirred for 1 h; filtered; residue washed (toluene); filtrate and washings added to (EtO)3N in toluene; soln. stirred at room temp. for 16 h; filtered; residue washed (toluene; CH2Cl2); filtrate evapd. (vac);

triethylamine in isopropyl alcohol; benzene byproducts: Et3NHCl; addn. of Et3N to Ge-complex soln. (-5 to -10°C, stirring), warming to 20°C, triethanolamine addn., stirring (room temp., 16 h); filtration of ppt. and evapn. of filtrate (vac.); elem. anal.;

in neat (no solvent) byproducts: Bu3SnCl; reactants mixed at -40°C;

in benzene under dry N2; mixt. boiled for 35 min; cooled; triethanolamine hydriodide isolated; a mixt. pptd. by evapn. of filtrat;e; recrystd. from hexane and allylgermatrane isolated;

in diethyl ether reacted (20°C, 4 d); elem. anal.;

in acetonitrile byproducts: triethanolamine hydrobromide; under dry N2; mixt. boiled (81°C, 3 h); hot soln. decanted vac.-evapd. (20-100 mm, 30-35°C) until crystn. set in; ether added; solid 1-(triphenylmethyl)germatrane isolated; ppt. of chlorogermatrane obtained by evapn. of filtrate (40-50°C, 40mm); Ph3CH isolated from soln.; PMR;