hydrogen bromide; copper(I) bromide; sodium nitrite in water T=20°C; 0.5 h;

in benzene T=25°C; Yield given;

1: With potassium carbonate in water; N,N-dimethyl-formamide Suzuki-Miyaura Coupling; 1 h; Inert atmosphere; 2: With dichloro(1,1'-bis(diphenylphosphanyl)ferrocene)palladium(II) dichloromethane adduct in water; N,N-dimethyl-formamide T=80°C; Suzuki-Miyaura Coupling; 1 h; Inert atmosphere;