1: 1-bromo-4-chloro-2-fluoro-benzene With lithium diisopropyl amide in tetrahydrofuran T=-78°C; 0.166667 h; 2: N,N-dimethyl-formamide in tetrahydrofuran T=-78 - 20°C;

1: 1-bromo-4-chloro-2-fluoro-benzene With lithium diisopropyl amide in tetrahydrofuran T=-50 - -20°C; 2: N,N-dimethyl-formamide in tetrahydrofuran T=-50°C;

1: With lithium aluminium tetrahydride in tetrahydrofuran T=-78 - 20°C; 2: With hydrogenchloride; water in tetrahydrofuran