Syntheses of 6, 6′-bis (1-H-benzimidazol-2-yl)-4, 4′-bis (methoxycarbonyl)-2, 2′- bipyridine and a series of new quaterpyridines as functionalized tetradentate ligands is described. A molecular engineering was developed allowing different solubilities, π-systems or grafting modes.
[Ahmed, S. Kaleem; Etoga, Jean-Louis G.; Patel, Sarjubhai A.; Bridges, Richard J.; Thompson, Charles M. Bioorganic and Medicinal Chemistry Letters, 2011 , vol. 21, # 14 p. 4358 - 4362]
