Abstract

Introduction: A binuclear azomethine quinoxaline Schiff base copper (II) complex, [Cu₂LCl₂], having square-planar environment around each copper (II), has been synthesized.

Method: The coordination of the azomethine quinoxaline Schiff base with copper (II) and its structure was studied by various physicochemical and spectroscopic measurements.

Results: Catalytic activity of this complex in phenol hydroxylation reaction has been examined using H₂O₂ as a green oxidant.

Conclusion: Catalytic reaction conditions were optimized and under these conditions, 18.32 % conversion of phenol has been obtained for this catalyst.

Keywords: Hydroxylation, quinoxaline, diaminomaleonitrile, phenol, schiff base, copper (II) complex.

Graphical Abstract