1: 1-bromo-3-(propan-2-yl)benzene With n-butyllithium in tetrahydrofuran T=-70°C; 0.75 h; Inert atmosphere; 2: tri-isopropoxy-borane in tetrahydrofuran T=-70 - 0°C; 2 h; Inert atmosphere; 3: With hydrogenchloride in tetrahydrofuran; water T=-20°C;

1: With n-butyllithium in tetrahydrofuran; hexane T=-78°C; 2 h; 2: With tri-isopropoxy-borane in tetrahydrofuran; hexane T=-78 - 20°C; 2 h; 3: With hydrogenchloride