diethylamino-sulfur trifluoride in dichloromethane T=0 - 20°C;

1: 1-bromo-2-(difluoromethyl)benzene With n-butyllithium in tetrahydrofuran T=-78°C; 2: N,N-dimethyl-formamide in tetrahydrofuran T=-40°C; 1 h;

1: 1-bromo-2-(difluoromethyl)benzene With n-butyllithium in tetrahydrofuran; hexane T=-78°C; 1 h; 2: 2-isopropoxy-4,4,5,5-tetramethyl-1,3,2-dioxaborolane in tetrahydrofuran; hexane T=-78 - 20°C;

potassium acetate; (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride in dimethyl sulfoxide T=80°C; 10 h;