?6-mesityl,?1-imidazolinylidene-carbene-ruthenium(II) complexes

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dc.authoridÖzdemir, İsmail/0000-0001-6325-0216;
dc.authorwosidÖzdemir, İsmail/ABI-5192-2020
dc.authorwosidBruneau, Christian/AAL-4582-2020
dc.authorwosidTOUPET, Loic/N-7043-2014
dc.contributor.authorÇetinkaya, B
dc.contributor.authorDemir, S
dc.contributor.authorÖzdemir, I
dc.contributor.authorToupet, L
dc.contributor.authorSémeril, D
dc.contributor.authorBruneau, C
dc.contributor.authorDixneuf, PH
dc.date.accessioned2024-08-04T20:13:18Z
dc.date.available2024-08-04T20:13:18Z
dc.date.issued2003
dc.departmentİnönü Üniversitesien_US
dc.description.abstractThe reaction of electron-rich carbene-precursor olefins containing two imidazolinylidene moieties [(2,4,6-Me3C6H2CH2)NCH2CH2N(R)C=](2) (2a: R = CH2CH2OMe, 2b R = CH(2)Mes), bearing at least one 2,4,6-trimethylbenzyl (R = CH(2)Mes) group on the nitrogen atom, with [RuCl2(arene)](2) (arene = p-cymene, hexamethylbenzene) selectively leads to two types of complexes. The cleavage of the chloride bridges occurs first to yield the expected (carbene) (arene)ruthenium(H) complex 3. Then a further arene displacement reaction takes place to give the chelated eta(6)-mesityl,eta'-carbene-ruthenium complexes 4 and 5. An analogous eta(6)-arene-eta(1)-carbene complex with a benzimidazole frame 6 was isolated from an in situ reaction between [RuCl2(p-cymene)](2), the corresponding benzimidazolium salt and cesium carbonate. On heating, the RuCl2(imidazolinylidene) (p-cymene) complex 8, with p-methoxybenzyl pendent groups attached to the N atoms, leads to intramolecular p-cymene displacement and to the chelated eta(6)-arene,eta(1)-carbene complex 9. On reaction with AgOTf and the propargylic alcohol HC=CCPh20H, compounds 4-6 were transformed into the corresponding ruthenium allenylidene intermediates (4-->10, 5-->11, 6-->12). The in situ generated intermediates 10-12 were found to be active and selective catalysts for ring-closing metathesis (RCM) or cycloisomerisation reactions depending on the nature of the 1,6-dienes. Two complexes [RuCl2-{eta(1)-CN(CH2C6H2Me3-2,4,6)CH2CH2N- (CH2CH2OMe)}(C6Me6)] 3 with a monodentate carbene ligand and [RuCl2-{eta(1)-CN[CH2(eta(6)-C6H2Me3-2,4,6)]CH2CH2N-(CH2C6H2Me3-2,4,6)}] 5 with a chelating carbene-arene ligand were characterised by X-ray crystallography.en_US
dc.identifier.doi10.1002/chem.200204533
dc.identifier.endpage2330en_US
dc.identifier.issn0947-6539
dc.identifier.issn1521-3765
dc.identifier.issue10en_US
dc.identifier.pmid12772307en_US
dc.identifier.scopus2-s2.0-0037833492en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage2323en_US
dc.identifier.urihttps://doi.org/10.1002/chem.200204533
dc.identifier.urihttps://hdl.handle.net/11616/93534
dc.identifier.volume9en_US
dc.identifier.wosWOS:000183225200020en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isoenen_US
dc.publisherWiley-V C H Verlag Gmbhen_US
dc.relation.ispartofChemistry-A European Journalen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectalkene metathesisen_US
dc.subjectarenesen_US
dc.subjectcarbenesen_US
dc.subjectcatalysisen_US
dc.subjectcycloisomerisationen_US
dc.subjectrutheniumen_US
dc.title?6-mesityl,?1-imidazolinylidene-carbene-ruthenium(II) complexesen_US
dc.typeArticleen_US

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