Iron(III) and copper(II) catalysed cyclohexane oxidation by molecular oxygen in the presence of tert-butyl hydroperoxide

dc.creatorSchuchardt, U
dc.creatorPereira, R
dc.creatorRufo, M
dc.date1998
dc.dateOCT 28
dc.date2014-12-02T16:29:43Z
dc.date2015-11-26T16:41:16Z
dc.date2014-12-02T16:29:43Z
dc.date2015-11-26T16:41:16Z
dc.date.accessioned2018-03-28T23:25:27Z
dc.date.available2018-03-28T23:25:27Z
dc.identifierJournal Of Molecular Catalysis A-chemical. Elsevier Science Bv, v. 135, n. 3, n. 257, n. 262, 1998.
dc.identifier1381-1169
dc.identifierWOS:000076709900005
dc.identifier10.1016/S1381-1169(97)00314-2
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/60729
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/60729
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/60729
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1272880
dc.descriptionIn the presence of cyclohexane soluble iron and copper catalysts, tert-butyl hydroperoxide selectively oxidises cyclohexane to cyclohexanol and cyclohexanone (with cyclohexene for the copper catalysts). Under reflux for 24 h, the conversions are 4 to 5% (turnover numbers of 70 to 90) and the selectivities above 90%. Under 25 bar of oxygen at 70 degrees C for 24 h, conversions with the iron catalysts are 9% (turnover numbers of up to 166) but the selectivities are below 80%, as large amounts of adipic acid are also formed. The copper catalysts are more selective under these conditions. Using Cu(tma)(2) the conversion is 11% (turnover number of 192) and the selectivity is 91%. Reactions in the presence of cyclohexanone show that the iron catalysts deactivate by complexation with the adipic acid formed by its over-oxidation. The copper catalysts rapidly produce cyclohexene at the beginning of the reactions; this is further oxidised to cyclohexen-3-one and cyclohexen-3-ol, thus reducing the catalyst activity for cyclohexane oxidation. (C) 1998 Elsevier Science B.V. All rights reserved.
dc.description135
dc.description3
dc.description257
dc.description262
dc.languageen
dc.publisherElsevier Science Bv
dc.publisherAmsterdam
dc.publisherHolanda
dc.relationJournal Of Molecular Catalysis A-chemical
dc.relationJ. Mol. Catal. A-Chem.
dc.rightsfechado
dc.rightshttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dc.sourceWeb of Science
dc.subjectcyclohexane oxidation
dc.subjectcyclohexanol
dc.subjectcyclohexanone
dc.subjectcopper(II) catalysts
dc.subjectiron(III) catalysts
dc.subjectmolecular oxygen
dc.subjecttert-butyl
dc.subjecthydroperoxide
dc.subjectSaturated-hydrocarbons
dc.subjectAlkanes
dc.subjectFunctionalization
dc.titleIron(III) and copper(II) catalysed cyclohexane oxidation by molecular oxygen in the presence of tert-butyl hydroperoxide
dc.typeArtículos de revistas


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