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Solvent-free microwave-assisted peroxidative oxidation of alcohols catalyzed by Iron(III)-TEMPO catalytic systems

2015-12Journal article Restricted access
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dc.contributor.authorKarmakar, Anirban
dc.contributor.authorMartins, Luisa
dc.contributor.authorGuedes Da Silva, M. Fátima C.
dc.contributor.authorHAZRA, SUSANTA
dc.contributor.authorPombeiro, Armando
dc.date.accessioned2016-03-14T14:11:57Z
dc.date.available2016-03-14T14:11:57Z
dc.date.issued2015-12
dc.description.abstractThe iron(III) complexes [H(EtOH)][FeCl2(L)(2)] (1), [H(2)bipy](1/2)[FeCl2(L)(2)].DMF (2) and [FeCl2(L)(2,2'-bipy)] (3) (L = 3-amino-2-pyrazinecarboxylate; H(2)bipy = doubly protonated 4,4'-bipyridine; 2,2'-bipy = 2,2'-bipyridine, DMF = dimethylformamide) have been synthesized and fully characterized by IR, elemental and single-crystal X-ray diffraction analyses, as well as by electrochemical methods. Complexes 1 and 2 have similar mononuclear structures containing different guest molecules (protonated ethanol for 1 and doubly protonated 4,4'-bipyridine for 2) in their lattices, whereas the complex 3 has one 3-amino-2-pyrazinecarboxylate and a 2,2'-bipyridine ligand. They show a high catalytic activity for the low power (10 W) solvent-free microwave assisted peroxidative oxidation of 1-phenylethanol, leading, in the presence of TEMPO, to quantitative yields of acetophenone [TOFs up to 8.1 x 10(3) h(-1), (3)] after 1 h. Moreover, the catalysts are of easy recovery and reused, at least for four consecutive cycles, maintaining 83 % of the initial activity and concomitant rather high selectivity. 3-Amino-2-pyrazinecarboxylic acid is used to synthesize three new iron(III) complexes which act as heterogeneous catalysts for the solvent-free microwave-assisted peroxidative oxidation of 1-phenylethanol.pt_PT
dc.identifier.citationKARMAKAR, Anirban; [et al.] - Solvent-free microwave-assisted peroxidative oxidation of alcohols catalyzed by Iron(III)-TEMPO catalytic systems.Catalysis Letters. ISSN. 1011-372X Vol. 145, N.º 12 (2015), pp. 2066-2076pt_PT
dc.identifier.doi10.1007/s10562-015-1616-2pt_PT
dc.identifier.issn1011-372X
dc.identifier.issn1572-879X
dc.identifier.urihttp://hdl.handle.net/10400.21/5850
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherSPRINGERpt_PT
dc.relation.publisherversionhttp://link.springer.com/article/10.1007/s10562-015-1616-2pt_PT
dc.subjectAlcohol oxidationpt_PT
dc.subjectMononuclear iron(III)pt_PT
dc.subjectcomplexespt_PT
dc.subjectTEMPOpt_PT
dc.subjectMicrowave-assisted catalysispt_PT
dc.titleSolvent-free microwave-assisted peroxidative oxidation of alcohols catalyzed by Iron(III)-TEMPO catalytic systemspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage2076pt_PT
oaire.citation.issue12pt_PT
oaire.citation.startPage2066pt_PT
oaire.citation.volume145pt_PT
person.familyNameMartins
person.familyNameGuedes da Silva
person.familyNameHAZRA
person.familyNamePombeiro
person.givenNameLuisa
person.givenNameM. Fátima C.
person.givenNameSUSANTA
person.givenNameArmando
person.identifier637885
person.identifier789079
person.identifier-5yoR4sAAAAJ&hl=en
person.identifier.ciencia-idE218-E297-A4EA
person.identifier.ciencia-id7619-8E8E-979A
person.identifier.ciencia-id731B-4D79-E1FE
person.identifier.ciencia-id8311-38FA-CEFB
person.identifier.orcid0000-0002-5403-9352
person.identifier.orcid0000-0003-4836-2409
person.identifier.orcid0000-0002-8101-2016
person.identifier.orcid0000-0001-8323-888X
person.identifier.ridG-6210-2011
person.identifier.ridH-8274-2012
person.identifier.ridI-5945-2012
person.identifier.scopus-author-id8650947800
person.identifier.scopus-author-id6701761571
person.identifier.scopus-author-id23481611800
person.identifier.scopus-author-id7006067269
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication8ed70b09-b4d3-4a5d-9f75-12b13a332204
relation.isAuthorOfPublication18e14ad3-9937-46d0-83b2-36fab224c1c0
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relation.isAuthorOfPublication.latestForDiscovery8ed70b09-b4d3-4a5d-9f75-12b13a332204

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