Synthesis, physico-chemical and iron(III)-chelating properties of novel hexadentate 3-hydroxy-2(1H)pyridinone ligands

Article abstract of DOI:10.1016/S0040-4020(98)01091-6

Synthesis of hexadentate ligands via the in situ formation of 1-hydroxy benzotriazolyl active ester in the presence of 2-(1H-benzotriazol-1-yl)- 1,1,3,3-tetramethyluronium tetrafluoroborate, TBTU as a coupling agent is described. The pKa values and distri