Epoxidation of Cyclohexene on Heterogenized Molybdenum Compounds

dc.creatorBarradas, E.F.M.
dc.creatorCestari, A.R.
dc.creatorAiroldi, C.
dc.creatorBuffon, R.
dc.date1998-06-01
dc.date2014-07-17T17:37:42Z
dc.date2015-11-26T13:20:40Z
dc.date2014-07-17T17:37:42Z
dc.date2015-11-26T13:20:40Z
dc.date.accessioned2018-03-28T21:04:01Z
dc.date.available2018-03-28T21:04:01Z
dc.identifierBrazilian Journal of Chemical Engineering. Brazilian Society of Chemical Engineering, v. 15, n. 2, p. -, 1998.
dc.identifier0104-6632
dc.identifierS0104-66321998000200008
dc.identifier10.1590/S0104-66321998000200008
dc.identifierhttp://dx.doi.org/10.1590/S0104-66321998000200008
dc.identifierhttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66321998000200008
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/26057
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/26057
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1239706
dc.descriptionHeterogenization of molybdenum species, starting either with Mo(CO)6 or MoO2(acac)2, on the surface of functionalized silicas bearing one (Si-Et1) or two (Si-Et2) ethylenediamine ligands was studied. The resulting systems are active in the catalytic epoxidation of cyclohexene by tert-butyl hydroperoxide. Using fresh catalysts, Si-Et2 results in higher selectivity, regardless of the Mo precursor. However, MoO2(acac)2-based systems are far more active. Formation of diols was never detected. Although XPS analyses point mainly to Mo(VI) species on the surface of all systems, UV-vis spectra suggest different ligands in their coordination sphere
dc.languageen
dc.publisherBrazilian Society of Chemical Engineering
dc.relationBrazilian Journal of Chemical Engineering
dc.rightsaberto
dc.sourceSciELO
dc.subjectEpoxidation
dc.subjectmolybdenum
dc.subjectfunctionalized silica
dc.titleEpoxidation of Cyclohexene on Heterogenized Molybdenum Compounds
dc.typeArtículos de revistas


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