Synthesis of multitopic bidentate ligands based on alternating pyridine and pyridazine rings

Article abstract of DOI:10.1016/S0040-4039(98)02540-4

A synthetic route based on Stille coupling between tributyltinpyridyl derivatives and chloropyridazines is used for the synthesis of ditopic bidentate ligands 8, 9 and 10. This methodology can be extended for the synthesis of a linear tetradentate ligand 11 with four pyridine and two pyridazine rings.