tetra-n-butylammonium tetrafluoroborate; NiBr2bipy in N,N-dimethyl-formamide electrochemical coupling;

1: 6-bromo-2-methoxypyridine With n-butyllithium; isopropylmagnesium chloride in tetrahydrofuran; hexane T=-2 - 0°C; 0.75 h; Inert atmosphere; 2: chloro-diphenylphosphine in tetrahydrofuran; hexane T=0 - 20°C; Inert atmosphere;