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The catalytic oxidation of phenol in aqueous media using cobalt(II) complexes derived from N-(aryl) salicylaldimines |
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| Authors: | Juanita L. van Wyk, Selwyn F. Mapolie, Anders Lennartson, Mikael H kansson,Susan Jagner |
| Affiliation: | aChemistry Department, University of the Western Cape, Private Bag X17, Bellville 7535, South Africa bDepartment of Chemistry, Göteborg University, SE-412 96 Göteborg, Sweden cDepartment of Chemical and Biological Engineering, Chalmers University of Technology, SE-412 96 Göteborg, Sweden |
| Abstract: | The synthesis of tetradentate cobalt(II) salicylaldiminato complexes and their catalytic evaluation in the oxidation of phenol is reported. Tetradentate cobalt complexes [Co(Ln)2] were obtained by reacting the N-(aryl)salicylaldimine ligands (HL1–HL6) with cobalt acetate in a 2:1 mole ratio. All complexes were characterized using FT-IR and elemental analysis. X-ray crystal structures of complexes 1, 2 and 5 have also been obtained. All complexes were found to be active for the oxidation process. |
| Keywords: | N-(Aryl) salicylaldimines Tetradentate cobalt complexes Phenol oxidation Phenol hydroxylation |
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