1,1,1,2,2,2-hexabutyl-distannane; (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride in N,N-dimethyl-formamide T=120°C; 0.5 h;

pyridine; tetrabutyl ammonium fluoride; cobalt(II) dibromide T=50°C; Electrolysis;