Synthesis and reactivity of alpha-sulfenyl-beta-chloroenones, including oxidation and Stille cross-coupling to form chalcone derivatives

dc.contributor.authorKearney, Aoife M.
dc.contributor.authorMurphy, Linda
dc.contributor.authorMurphy, Chloe
dc.contributor.authorEccles, Kevin S.
dc.contributor.authorLawrence, Simon E.
dc.contributor.authorCollins, Stuart G.
dc.contributor.authorMaguire, Anita R.
dc.contributor.funderIrish Research Councilen
dc.contributor.funderDepartment of Education, Irelanden
dc.date.accessioned2022-01-19T12:55:10Z
dc.date.available2022-01-19T12:55:10Z
dc.date.issued2021-03-26
dc.date.updated2022-01-19T11:59:32Z
dc.description.abstractThe synthesis of a range of novel α-sulfenyl-β-chloroenones from the corresponding α-sulfenylketones, via a NCS mediated chlorination cascade, is described. The scope of the reaction has been investigated and compounds bearing alkyl- and arylthio substituents have been synthesised. In most instances, the Z α-sulfenyl-β-chloroenones were formed as the major products, while variation of the substituent at the β-carbon position led to an alteration in stereoselectivity. Stille cross-coupling with the Z α-sulfenyl-β-chloroenones led to selective formation of Z sulfenyl chalcones, while the E α-sulfenyl-β-chloroenones did not react under the same conditions. Oxidation of the Z α-sulfenyl-β-chloroenones was followed by isomerisation, leading to the E α-sulfinyl-β-chloroenones. Stille cross-coupling with the E α-sulfinyl-β-chloroenones produced the E sulfinyl chalcones. Either the E or Z sulfinyl chalcones can be obtained by altering the sequence of oxidation and Stille cross-coupling.en
dc.description.sponsorshipIrish Research Council (GOIPG/2018/112); Science Foundation Ireland (12/RC/2275_P2)en
dc.description.statusPeer revieweden
dc.description.versionPublished Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.articleid132091en
dc.identifier.citationKearney, A., Murphy, L., Murphy, C., Eccles, K., Lawrence, S., Collins, S. and Maguire, A., (2021) 'Synthesis and reactivity of α-sulfenyl-β-chloroenones, including oxidation and Stille cross-coupling to form chalcone derivatives', Tetrahedron, 88, 132091 (12 pp). doi: 10.1016/j.tet.2021.132091en
dc.identifier.doi10.1016/j.tet.2021.132091en
dc.identifier.endpage12en
dc.identifier.issn0040-4020
dc.identifier.journaltitleTetrahedronen
dc.identifier.startpage1en
dc.identifier.urihttps://hdl.handle.net/10468/12423
dc.identifier.volume88en
dc.language.isoenen
dc.publisherElsevieren
dc.relation.projectinfo:eu-repo/grantAgreement/SFI/SFI Research Centres/12/RC/2275/IE/Synthesis and Solid State Pharmaceutical Centre (SSPC)/en
dc.relation.urihttps://www.sciencedirect.com/science/article/pii/S0040402021002635
dc.rights© 2021 The Author(s). Published by Elsevier Ltd. This is an open access article under the CC BY licenseen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectChalconesen
dc.subjectChlorinationen
dc.subjectOxidationen
dc.subjectStille cross-couplingen
dc.subjectThioamidesen
dc.subjectTransformationen
dc.subjectToolsen
dc.subjectα-Sulfenyl-β-chloroenonesen
dc.titleSynthesis and reactivity of alpha-sulfenyl-beta-chloroenones, including oxidation and Stille cross-coupling to form chalcone derivativesen
dc.typeArticle (peer-reviewed)en
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