696587-23-2

Upstream product

• 696587-22-1 2-[3.25-dioxa-11.14.17.31-tetraazatetracyclo[25.3.1.O(4.9).O(19.24)]hentriaconta-1⁽³¹⁾.4⁽⁹⁾.5.7.10.17.19⁽²⁴⁾.20.22.27.29-nonaen-14-yl]-1-athanamine 
• 89-95-2 2-methyl-benzyl alcohol 
• 66433-95-2 2,6-Bis(2-formylphenoxymethyl)pyridine 
• 4097-89-6 2,2',2''-triaminotriethylamine 

Relevant academic research and scientific papers

A new family of NxOx pyridine-containing macrocycles: Synthesis and characterization of their Y(III), Ln(III), Zn(II), and Cd(II) coordination compounds

Reaction between 2,6-bis(2-formylphenoxymethyl)pyridine and N,N-bis(3-aminopropyl)methylamine or tris(2-aminoethyl)amine has been used as the starting point for the synthesis of seven oxa-aza macrocyclic ligands, five of them never reported previously. They all feature different pendant arms, which provide a wide range of coordination possibilities. The Schiff base macrocycles L1 and L4 and their reduced ligands L 2 and L5 are derived from 2,6-bis(2-formylphenoxymethyl) pyridine and tris(2-aminoethyl)amine or N,N-bis(3-aminopropyl)methylamine, respectively. The reaction of L1 with salicylaldehyde forms L 3, which features an imine bond in the pendant arm. The ligand L 5 has been the precursor for the pendant-armed L6 and L7, by alkylation of the free NH groups with methyl-imidazole or methyl-indole. By a template or a nontemplate approach, we have synthesized different mono- and dinuclear complexes with Y(III), Ln(III), Zn(II), and Cd(II) cations. Both the free macrocyclic ligands and their corresponding metal complexes have been characterized by microanalysis, IR, UV-vis, 1H and 13C NMR spectroscopy, FAB mass spectrometry, MS electrospray, and conductivity measurements.