1: 3-bromo-pyridine With isopropylmagnesium chloride in tetrahydrofuran T=20°C; 1 h; 2: 2,6-Dibromopyridine With 1,2-bis-(diphenylphosphino)ethane; bis(acetylacetonate)nickel(II) in tetrahydrofuran T=20°C; 18 h;
1: With magnesium; lithium chloride in tetrahydrofuran T=20°C; Inert atmosphere; 2: With N-fluoro-2,4,6-trimethylpyridinium tetrafluoroborate in tetrahydrofuran; n-heptane T=0°C; Inert atmosphere;
