dc.contributor.author | Türk, Hayrettin | |
dc.contributor.author | Çimen, Yasemin | |
dc.date.accessioned | 2019-10-20T09:30:37Z | |
dc.date.available | 2019-10-20T09:30:37Z | |
dc.date.issued | 2005 | |
dc.identifier.issn | 1381-1169 | |
dc.identifier.uri | https://dx.doi.org/10.1016/j.molcata.2005.02.022 | |
dc.identifier.uri | https://hdl.handle.net/11421/17369 | |
dc.description | WOS: 000229488700003 | en_US |
dc.description.abstract | The oxidation of 2,6-di-tert-butylphenol (DTBP) with tert-butylhydroperoxide (Bu'OOH) catalyzed by cobalt(II) phthalocyanine tetrasulfonate ([CoPcTS](4-)) in a 4:1 methanol-water mixture gave predominantly the coupled products 3,3',5,5'-tetra-tert-butyl-4,4'-diphenoquinone (DPQ) and 4,4'-dihydroxy-3,3',5,5'-tetra-tert-butylbiphenyl (H(2)DPQ) when the oxidant/substrate ratio was less than 10. The conversion of DTBP was 70 % in 3 h and 86 % in 8 h when the amounts of DTBP, Bu'OOH, and [CoPcTS](4-) in millimoles were 0.300, 1.52, and 3.0 x 10(-3), respectively. The yield of DPQ was 56 % in 3 h and 73 % in 8 h whereas that of H(2)DPQ was about 14 % in 3 and 8 h. H(2)DPQ is not commonly encountered the oxidation product of DTBP and is considered unstable. When the oxidant/substrate ratio was over 10, 2,6-di-tert-butylbenzoquinone was also formed. The degradation of [CoPcTS](4-) by Bu'OOH also occurred during the oxidation of DTBP. About three-fourths of the catalyst was degraded in the first hour and about 2 % of the catalyst remained after 8 h | en_US |
dc.language.iso | eng | en_US |
dc.publisher | Elsevier Science BV | en_US |
dc.relation.isversionof | 10.1016/j.molcata.2005.02.022 | en_US |
dc.rights | info:eu-repo/semantics/closedAccess | en_US |
dc.subject | 2,6-Di-Tert-Butylphenol | en_US |
dc.subject | 3,3 ',5,5 '-Tetra-Tert-Butyl-4,4 '-Diphenoquinone | en_US |
dc.subject | 4,4 '-Dihydroxy-3,3 ',5,5 '-Tetra-Tert-Butylbiphenyl | en_US |
dc.subject | Cobalt(Ii) Phthalocyanine Tetrasulfonate | en_US |
dc.subject | Tert-Butylhydroperoxide | en_US |
dc.subject | Oxidation | en_US |
dc.title | Oxidation of 2,6-di-tert-butylphenol with tert-butylhydroperoxide catalyzed by cobalt(II) phthalocyanine tetrasulfonate in a methanol-water mixture and formation of an unusual product 4,4 '-dihydroxy-3,3 ',5,5 '-tetra-tert-butylbiphenyl | en_US |
dc.type | article | en_US |
dc.relation.journal | Journal of Molecular Catalysis A-Chemical | en_US |
dc.contributor.department | Anadolu Üniversitesi, Fen Fakültesi, Fizik Bölümü | en_US |
dc.identifier.volume | 234 | en_US |
dc.identifier.issue | 1.Şub | en_US |
dc.identifier.startpage | 19 | en_US |
dc.identifier.endpage | 24 | en_US |
dc.relation.publicationcategory | Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı | en_US |
dc.contributor.institutionauthor | Türk, Hayrettin | |