1: With n-butyllithium in diethyl ether; hexane T=-50 - -10°C; Inert atmosphere; 2: With tetrachlorosilane in diethyl ether; hexane T=-10 - 25°C; Inert atmosphere;

1: p-bromophenyl bromide With n-butyllithium in diethyl ether T=-78°C; 1 h; Inert atmosphere; 2: tetrachlorosilane in diethyl ether T=-78 - 20°C; Inert atmosphere;