Tetrahedron Letters

An efficient route to pyridine and 2, 2′-bipyridine macrocycles incorporating a triethylenetetraminetetraacetic acid core as ligand for lanthanide ions

G Bechara, N Leygue, C Galaup, B Mestre, C Picard

Index: Bechara, Ghassan; Leygue, Nadine; Galaup, Chantal; Mestre, Beatrice; Picard, Claude Tetrahedron Letters, 2009 , vol. 50, # 47 p. 6522 - 6525

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Citation Number: 7

Abstract

Two novel macrocyclic chelators L1 and L2 incorporating an intracyclic pyridine or 2, 2′- bipyridine unit and a triethylenetetraminetetraacetic acid core (TTTA) were synthesized with the aim of forming lanthanide complexes suitable as efficient long-lived luminophores. For this goal, an efficient methodology for the preparation of TTTA derivatives using prealkylated precursors is described. Starting from commercially available compounds, the target ...