Synthesis, characterization, and comparison of two new copper(II) complexes containing Schiff-base and diazo ligands as new catalysts in CuAAC reaction

© 2019 Elsevier B.V. Two copper(II)complexes were synthesized through the reaction of Cu(OAc) 2 ·H 2 O with a Schiff-base ligand (1-(((3,4-dichlorophenyl)imino)methyl)naphthalen-2-ol)and a diazo ligand (1-((3,4-dichlorophenyl)diazenyl)naphthalen-2-ol)in methanol. The complexes and ligands were characterized employing elemental analysis and electronic spectra. In addition, the ligands were fully characterized by using several 1D and 2D NMR techniques. Single crystal X-ray crystallography was also used for the characterization of some of these materials. Due to finding out the effect of Schiff-base and diazo ligands nature on the catalytic activity, the complexes were catalytically compared in one-pot azide-alkyne cycloaddition reaction in water. Furthermore, computational studies were performed on ligands and complexes for further understanding of the relationship between structure, bonding, and reactivity of these new materials.

Jaar van publicatie:2019