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Iron(III) and cobalt(III) complexes with both tautomeric (keto and enol) forms of aroylhydrazone ligands: catalysts for the microwave assisted oxidation of alcohols

2016Journal article Restricted access
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dc.contributor.authorSutradhar, Manas
dc.contributor.authorAlegria, Elisabete
dc.contributor.authorMahmudov, Kamran
dc.contributor.authorGuedes Da Silva, M. Fátima C.
dc.contributor.authorPombeiro, Armando
dc.date.accessioned2019-03-14T10:41:13Z
dc.date.available2019-03-14T10:41:13Z
dc.date.issued2016
dc.description.abstractTwo Schiff bases derived from the condensation of 2-hydroxybenzohydrazide with 3,5-di-tert-butyl-2-hydroxybenzaldehyde (H2L1) or with 2,3-dihydroxy benzaldehyde (H2L2) were used to synthesize the Fe(III) and Co(III) complexes [Fe(L-1)(HL1)] (1) and [Co(L-2)(HL2)] (2), respectively. The compounds were characterized by elemental analysis, IR, ESI-MS and single crystal X-ray analysis. Structural studies indicated the presence of both keto and enol tautomeric forms of the ligand in 1 and 2. The complexes (mainly 1) act as catalysts in the microwave-assisted solvent-free peroxidative oxidation (by tert-butylhydroperoxide, TBHP) of primary and secondary alcohols. A facile, efficient and selective synthesis of ketones was achieved with a yield up to 96% and a TON up to 500, after 30 min under low power (15 W) microwave irradiation (complex 1 as catalyst). 2-Pyrazinecarboxylic acid (Hpca) shows a promoting effect.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationSUTRADHAR, Manas; [et al] – Iron(III) and cobalt(III) complexes with both tautomeric (keto and enol) forms of aroylhydrazone ligands: catalysts for the microwave assisted oxidation of alcohols. RSC Advances. ISSN 2046-2069. Vol. 6, N.º 10 (2016), pp. 8079-8088pt_PT
dc.identifier.doi10.1039/c5ra25774cpt_PT
dc.identifier.issn2046-2069
dc.identifier.urihttp://hdl.handle.net/10400.21/9718
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherRoyal Society of Chemistrypt_PT
dc.relationMETAL CLUSTERS: STRUCTURAL ANALYSIS, APPLICATIONS IN CATALYSIS AND MOLECULAR MAGNETISM
dc.subjectTautomeric formspt_PT
dc.subjectMicrowavept_PT
dc.subjectOxidationpt_PT
dc.subjectAlcoholspt_PT
dc.titleIron(III) and cobalt(III) complexes with both tautomeric (keto and enol) forms of aroylhydrazone ligands: catalysts for the microwave assisted oxidation of alcoholspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleMETAL CLUSTERS: STRUCTURAL ANALYSIS, APPLICATIONS IN CATALYSIS AND MOLECULAR MAGNETISM
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FQUI%2F00100%2F2013/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBPD%2F86067%2F2012/PT
oaire.citation.endPage8088pt_PT
oaire.citation.issue10pt_PT
oaire.citation.startPage8079pt_PT
oaire.citation.titleRSC Advancespt_PT
oaire.citation.volume6pt_PT
oaire.fundingStream5876
person.familyNameSutradhar
person.familyNameAlegria
person.familyNameMahmudov
person.familyNameGuedes da Silva
person.familyNamePombeiro
person.givenNameManas
person.givenNameElisabete
person.givenNameKamran
person.givenNameM. Fátima C.
person.givenNameArmando
person.identifier863180
person.identifier863202
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person.identifier.ciencia-id7619-8E8E-979A
person.identifier.ciencia-id8311-38FA-CEFB
person.identifier.orcid0000-0003-3349-9154
person.identifier.orcid0000-0003-4060-1057
person.identifier.orcid0000-0003-0743-6520
person.identifier.orcid0000-0003-4836-2409
person.identifier.orcid0000-0001-8323-888X
person.identifier.ridM-4089-2013
person.identifier.ridE-9945-2012
person.identifier.ridI-1409-2013
person.identifier.ridH-8274-2012
person.identifier.ridI-5945-2012
person.identifier.scopus-author-id14053084900
person.identifier.scopus-author-id8315848300
person.identifier.scopus-author-id24468352000
person.identifier.scopus-author-id6701761571
person.identifier.scopus-author-id7006067269
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
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