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Oxidation of cyclohexane catalyzed by bis-(2-pyridylmethyl)amine Cu(II) complexes

Paper ID Volume ID Publish Year Pages File Format Full-Text
44118 46004 2007 7 PDF Available
Title
Oxidation of cyclohexane catalyzed by bis-(2-pyridylmethyl)amine Cu(II) complexes
Abstract

In this work, it is showed the cyclohexane oxidation catalyzed by the copper(II) complexes, [Cu(BMPA)Cl2] (1) and {[Cu(BMPA)Cl2][Cu(BMPA)(H2O)Cl] [Cu(BMPA)Cl][CuCl4]} (2), using hydrogen peroxide or tert-butyl hydroperoxide as terminal oxidants and acetonitrile as solvent. Although the complexes were previously reported, in the present paper it is disclosed an alternative method for the synthesis of the complex 2, as well as additional characterization data on these complexes including EPR and cyclic voltammetry. The complexes were able to oxidize cyclohexane into cyclohexanol, cyclohexanone, cyclohexyl hydroperoxide and adipic acid, in mild conditions. Complex 2 exhibited the best results, reaching as high as 68.9% of total yield in 24 h with H2O2. In general, H2O2 showed better results than tert-butyl hydroperoxide as terminal oxidant.

Graphical abstractIn this work, it is showed the cyclohexane oxidation catalyzed by the copper(II) complexes, [Cu(BMPA)Cl2] and {[Cu(BMPA)Cl2][Cu(BMPA)(H2O)Cl] [Cu(BMPA)Cl][CuCl4]} (2), using hydrogen peroxide or tert-butyl hydroperoxide as terminal oxidants and acetonitrile as solvent. Figure optionsDownload full-size imageDownload as PowerPoint slide

Keywords
Cu(II) enzymes; pMMO; Oxidation; Cu(II) complexes; Cyclohexanol; Cyclohexanone; Cyclohexyl hydroperoxide; Adipic acid; Hydrogen peroxide; tert-Butyl hydroperoxide; EPR; Cyclic voltammetry
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 317, Issue 2, 7 February 2007, Pages 154–160
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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Price was $35.95
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