1: With n-butyllithium in tetrahydrofuran; hexane T=-80°C; 1 h; Inert atmosphere; 2: With boric acid trimethyl ester in tetrahydrofuran; hexane T=-80 - 20°C; 15 h; 3: With hydrogenchloride; water in tetrahydrofuran; hexane 1 h;
1: 3-bromo-9-phenylcarbazole With n-butyllithium in tetrahydrofuran T=-78°C; 2 h; Inert atmosphere; 2: tri-isopropoxy-borane in tetrahydrofuran T=-78 - 20°C; Inert atmosphere; 3: With hydrogenchloride; water in tetrahydrofuran T=-10°C; Inert atmosphere;
