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Catalytic epoxidation and sulfoxidation activity of a dioxomolybdenum(VI) complex bearing a chiral tetradentate oxazoline ligand

2009-09Journal article Restricted access
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dc.contributor.authorNeves, Patrícia
dc.contributor.authorGago, Sandra
dc.contributor.authorPereira, Cláudia C. L.
dc.contributor.authorFigueiredo, Sónia
dc.contributor.authorLemos, Americo
dc.contributor.authorLopes, Andre D.
dc.contributor.authorGonçalves, Isabel S.
dc.contributor.authorPillinger, Martyn
dc.contributor.authorSilva, Carlos M.
dc.contributor.authorValente, Anabela A.
dc.date.accessioned2014-12-15T16:59:13Z
dc.date.available2014-12-15T16:59:13Z
dc.date.issued2009-09
dc.date.updated2014-12-11T11:19:15Z
dc.description.abstractA dioxomolybdenum(VI) complex bearing a tetradentate anionic N,O oxazoline ligand with four stereocenters has been studied as a catalyst in the liquid-phase epoxidation of 17 different aliphatic and aromatic olefins(including prochiral, racemate or pure enantiomers) using tert-butyl hydroperoxide as the oxidant. Epoxide selectivities of up to 100% and variable epoxide yields (3–100% within 24 h) were obtained. Although the complex generally exhibited low or no chiral induction ability, diastereoselectivity was significant in some cases (in the reaction of limonene, for example). Kinetic studies and recycling tests with the substrates cis-cyclooctene and trans-b-methylstyrene showed that the catalyst is stable and reusable, and recycling is facilitated by immobilization of the complex in a room temperature ionic liquid. Preliminary results show that the complex may have a broad substrate scope, not only for olefin epoxidation, but also for the dehydrogenation of alcohols to carbonyl compounds and the sulfoxidation of sulfides to sulfoxides.por
dc.identifier.citationAnabela A Valente. Catalytic Epoxidation and Sulfoxidation Activity of a Dioxomolybdenum(VI) Complex Bearing a Chiral Tetradentate Oxazoline Ligand , Catalysis Letters, 132, 1-2, 94-103, 2009.por
dc.identifier.doihttp://dx.doi.org/10.1007/s10562-009-0065-1
dc.identifier.issn1011-372X
dc.identifier.otherAUT: ALE01411; ADL01681
dc.identifier.urihttp://hdl.handle.net/10400.1/5686
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherSpringerpor
dc.relation.publisherversionhttp://download.springer.com/static/pdf/108/art%253A10.1007%252Fs10562-009-0065-1.pdf?auth66=1418662383_5070ec285ba768fa2b4bcfa17106560d&ext=.pdfpor
dc.subjectIonic liquidspor
dc.subjectCatalysispor
dc.subjectOlefinspor
dc.subjectMolybdenumpor
dc.subjectChiral oxazolinepor
dc.subjectOxidationpor
dc.subjectSulfoxidationpor
dc.subjectPeroxidespor
dc.titleCatalytic epoxidation and sulfoxidation activity of a dioxomolybdenum(VI) complex bearing a chiral tetradentate oxazoline ligandpor
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage103por
oaire.citation.issue14-2por
oaire.citation.startPage94por
oaire.citation.titleCatalysis Letterspor
oaire.citation.volume132por
person.familyNameLemos
person.familyNameD. Lopes
person.givenNameAmerico
person.givenNameAndré
person.identifier2824636
person.identifier.ciencia-idA81D-6DC7-31E4
person.identifier.ciencia-id351E-856A-0300
person.identifier.orcid0000-0001-9588-4555
person.identifier.orcid0000-0002-9702-1216
person.identifier.ridB-4892-2008
person.identifier.ridE-2136-2012
person.identifier.scopus-author-id11139694000
person.identifier.scopus-author-id7201958625
rcaap.rightsrestrictedAccesspor
rcaap.typearticlepor
relation.isAuthorOfPublication70dfe028-027a-4dec-b6e3-1a49c9be9e60
relation.isAuthorOfPublicationf2f0fe56-e04d-4229-b37b-2b9f1789fe2d
relation.isAuthorOfPublication.latestForDiscoveryf2f0fe56-e04d-4229-b37b-2b9f1789fe2d

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