in diethyl ether T=20°C; 3 h;

in tetrahydrofuran mixing of solns. (20°C); removal of THF (vavc.), addn. of hexane, pptn. and sepn. of NaBr (filtration off), crystn. of quinone (low temp.); (t-Bu)2C6H2(OGeEt3)2 in mother liquor not isolated; GLC;

in diethyl ether addn. of hemiquinolate in ether to soln. of (i-Pr)3GeCl in Et2O; removal of ether, addn. of hexane, sepn. of NaCl (filtration off), evapn., crystn. (low temp.);

in diethyl ether 3 h at 20°C; ether replaced with hexane; NaBr washed out (water); recrystd. (hexane);

in diethyl ether T=25°C; 10 h; Product distributionMechanism;

in tetrahydrofuran byproducts: H2; N2, blue soln. of semiquinone sodium salt added dropwise over 1 h to a soln. of In-salt, stirred for 2 h at room temp., NaCl removed from intermediate products by filtrn., excess 4-picoline added to the filtrate; collected, dried, recrystd. (toluene/THF); elem. anal.; formn. of In(I)and other species also discussed;

in diethyl ether addn. of hemiquinolate in ether to soln. of (i-Pr)3GeCl in Et2O; removal of ether, addn. of hexane, sepn. of NaCl (filtration off), evapn., crystn. (low temp.);

(i) (diazotization), (ii) /BRN= 5193052/, THF; Multistep reaction;