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Supported C-Scorpionate Vanadium(IV) Complexes as Reusable Catalysts for Xylene Oxidation

2017-10Journal article Restricted access
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dc.contributor.authorWang, Jiawei
dc.contributor.authorMartins, Luisa
dc.contributor.authorDa Costa Ribeiro, Ana Paula
dc.contributor.authorCarabineiro, Sonia Alexandra Correia
dc.contributor.authorFigueiredo, José L.
dc.contributor.authorPombeiro, Armando
dc.date.accessioned2017-11-20T11:42:04Z
dc.date.available2017-11-20T11:42:04Z
dc.date.issued2017-10
dc.description.abstractC-Scorpionate vanadium(IV) [VOxCl3-x{k(3)-RC(pz)(3)}] [pz = pyrazol-1-yl; x=0, R = SO3 (1); x = 1, R= CH2OH (2) or CH2OSO2Me (3)] complexes supported on functionalized carbon nanotubes (CNTs) are the first V-scorpionate catalysts used so far for the neat oxidation of o-, m- or p-xylene, with TBHP (70% aqueous solution), to the corresponding toluic acids (main products), tolualdehydes and methylbenzyl alcohols. Remarkably, a p-toluic acid yield of 43% (73% selectivity, TON = 1.34 V 10(3)) was obtained with 2@CNT in a simple microwave-assisted mild oxidation procedure, using a very low catalyst charge (3.2 x 10(-2) mol% vs. substrate). Further, this occurred in the absence of any bromine source, what is significant towards the development of a greener and more sustainable process for oxidation of xylenes. Moreover, reuse of catalysts with preservation of their activity was found for up to six consecutive cycles. The effects of reaction parameters, such as reaction time, temperature, amount of catalyst or type of heating source, on the performance of the above catalytic systems are reported and discussed.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationWANG, Jiawei; [et al] - Supported C-Scorpionate Vanadium(IV) Complexes as Reusable Catalysts for Xylene Oxidation. Chemistry-an Asian Journal. ISSN 1861-4728. Vol. 12, N.º 15 (2017), pp. 1915-1919pt_PT
dc.identifier.doi10.1002/asia.201700499pt_PT
dc.identifier.issn1861-4728
dc.identifier.issn1861-471X
dc.identifier.urihttp://hdl.handle.net/10400.21/7559
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherWiley-V C H Verlag Gmbhpt_PT
dc.relationPTDC/QEQ-QIN/3967/201pt_PT
dc.relationPOCI-01-0145-FEDER-006984pt_PT
dc.relation.publisherversionfile:///C:/Users/utilizador2/Downloads/115.%20Chem.%20Asian%20J.%202017%2012%201915-1919.pdfpt_PT
dc.subjectCarbon nanotubespt_PT
dc.subjectC-scorpionatept_PT
dc.subjectOxidationpt_PT
dc.subjectVanadiumpt_PT
dc.subjectXylenespt_PT
dc.titleSupported C-Scorpionate Vanadium(IV) Complexes as Reusable Catalysts for Xylene Oxidationpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FQUI%2F00100%2F2013/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/PTDC%2FQEQ-ERQ%2F1648%2F2014/PT
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oaire.awardURIinfo:eu-repo/grantAgreement/FCT/Investigador FCT/IF%2F01381%2F2013%2FCP1160%2FCT0007/PT
oaire.citation.endPage1919pt_PT
oaire.citation.issue15pt_PT
oaire.citation.startPage1915pt_PT
oaire.citation.titleChemistry - An Asian Journalpt_PT
oaire.citation.volume12pt_PT
oaire.fundingStream5876
oaire.fundingStream3599-PPCDT
oaire.fundingStreamSFRH
oaire.fundingStreamInvestigador FCT
person.familyNameMartins
person.familyNameda Costa Ribeiro
person.familyNamePombeiro
person.givenNameLuisa
person.givenNameAna Paula
person.givenNameArmando
person.identifier637885
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person.identifier.orcid0000-0001-8323-888X
person.identifier.ridG-6210-2011
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person.identifier.scopus-author-id8650947800
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person.identifier.scopus-author-id6602118574
person.identifier.scopus-author-id7006067269
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
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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
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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