Ligand‐Accelerated Iron‐ and Cobalt‐Catalyzed Cross‐Coupling Reactions between N‐Heteroaryl Halides and Aryl Magnesium Reagents

Quinoline and isoquinoline dramatically increase the rate and yield of Fe- and Co-catalyzed cross-coupling reactions. This new catalytic process extends the scope of such cross-coupling reactions to include complex functional groups and allows heteroaryl–heteroaryl bond formation to occur.