Multidentate ligands involving tethered pyridyl groups coordinated to transition metal ions have been frequently used mimic the 3-histidine (3H), 2-histidine-1-carboxylate (2H1C) brace motifs or other combinations of histidine and carboxylate endogenous ligating residues found in bioinorganic metalloenzymes. It is interest immobilize these ligand chelates onto heterogeneous supports. This, howe...

In the search for new ligands for the Ullmann diaryl ether synthesis, permitting the coupling of electron-rich aryl bromides at relatively low temperatures, 56 structurally diverse multidentate ligands were screened in a model system that uses copper iodide in acetonitrile with potassium phosphate as the base. The ligands differed largely in their performance, but no privileged structural class...

Aspartes and α-glutamates of the alkali (Li, Na, K) and alkaline earth metals (Mg, Ca) are important components for many preparations in the pharmaceutical industry [1]. L-aspartic and L-α-glutamic acid in particular, which are ubiquitous in nature, have been shown to form a large variety of salts and complexes with these metals both in aqueous solution and in the solid state depending on the p...