Tetrahedron Letters

Preparation of phosphorylated bis-pyrazolyl–pyridine nonadendate ligands and their terbium complexes. Part 2

R Ziessel, A Sutter, M Starck

Index: Ziessel, Raymond; Sutter, Alexandra; Starck, Matthieu Tetrahedron Letters, 2012 , vol. 53, # 29 p. 3717 - 3721

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Citation Number: 2

Abstract

A series of ligands has been constructed from a central bis-pyrazolyl–pyridine core and various deprotonable chelating pockets based on mixed carboxylate/phosphate or phosphate anionic functions and a central flexible pendent arm for subsequent grafting to biomaterials. For some of these ligands, the sequence of reactions incorporates an additional step introducing a substituted diethynylphenyl residue to increase significantly ...