1: With n-butyllithium in tetrahydrofuran; hexanes T=-78°C; 0.5 h; 2: With tri-isopropoxy-borane in tetrahydrofuran; hexanes T=-78 - 20°C; 1.5 h; 3: With hydrogenchloride in tetrahydrofuran; hexanes; water; ethyl acetate

1: 1-bromo-4-[(2-methoxyethoxy)methyl]benzene With n-butyllithium in tetrahydrofuran; hexanes T=-78°C; 0.5 h; 2: tri-isopropoxy-borane in tetrahydrofuran; hexanes T=-78 - 23°C; 1.5 h;