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The Synthesis of Copper(II) Salicylaldiminato Complexes and their Catalytic Activity in the Hydroxylation of Phenol
| Content Provider | Semantic Scholar |
|---|---|
| Author | Wyk, Juanita L. Van Mapolie, Selwyn Lennartson, Anders Håkansson, Mikael Jagner, Susan |
| Copyright Year | 2007 |
| Abstract | The synthesis of copper(II) salicylaldiminato complexes and their application in the catalytic hydroxylation of phenol is reported. Tetracoordinated copper complexes (Cu(Ln)2) were obtained by reacting the N-phenylsalicylaldimine ligands (HL1 -HL7) with copper acetate in a 2 : 1 mole ratio. The reaction of N-(2,6-diisopropyl)phenyl-3,5-di-tert-butylsalicylaldimine (HL7) with copper acetate in a 1 : 1 mole ratio afforded a dinuclear complex, which was not obtained with the other ligand systems. All complexes were characterized using FT-IR and elemental analysis. X-Ray crystal structures of complexes 2, 5 and 8 have also been obtained. The catalytic activity of these complexes was evaluated in the hydroxylation of phenol using oxygen and hydrogen peroxide as co-oxidants in aqueous media in the pH range 3 - 6. All complexes studied were found to be active for the hydroxylation process over the pH range studied with higher selectivity for catechol formation. |
| Starting Page | 331 |
| Ending Page | 338 |
| Page Count | 8 |
| File Format | PDF HTM / HTML |
| DOI | 10.1515/znb-2007-0305 |
| Alternate Webpage(s) | http://www.znaturforsch.com/ab/v62b/62b0331.pdf |
| Alternate Webpage(s) | http://www.znaturforsch.com/ab/v62b/s62b0331.pdf |
| Alternate Webpage(s) | https://doi.org/10.1515/znb-2007-0305 |
| Volume Number | 62 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
