Novel neutral phosphinite bridged dinuclear ruthenium(II) arene complexes and their catalytic use in transfer hydrogenation of aromatic ketones: X-ray structure of a new Schiff base, N3,N3?-di-2-hydroxybenzylidene-[2,2?]bipyridinyl-3,3?-diamine

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dc.contributor.authorAydemir, Murat
dc.contributor.authorDurap, Feyyaz
dc.contributor.authorBaysal, Akin
dc.contributor.authorMeric, Nermin
dc.contributor.authorBuldag, Ayseguel
dc.contributor.authorGuemguem, Bahattin
dc.contributor.authorOezkar, Saim
dc.date.accessioned2024-04-24T16:15:32Z
dc.date.available2024-04-24T16:15:32Z
dc.date.issued2010
dc.departmentDicle Üniversitesien_US
dc.description.abstractA novel Schiff base N3,N3'-di-2-hydroxybenzylidene-[2,2']bipyridinyl-3,3'-diamine, 1 was synthesized from condensation of salicylaldehyde with 3,3'-diamino-2,2'-bipyridine. Reaction of 1 with two equivalents of PPh2Cl in the presence of Et3N proceeds in toluene to give N3,N3'-di-2-(diphenylphosphino)benzylidene-[2,2']bipyridinyl-3,3'-diamine, 2 in quantitative yield. Ruthenium(II) dimers [Ru(eta(6)-arene)(mu-Cl)]Cl](2) readily react with phosphinite ligand [(Ph2PO)(2)-C24H16N4], 2 in toluene at room temperature, to afford the neutral derivatives [C24H16N4{OPPh2-Ru(eta(6)-arene)Cl-2}2] {arene: benzene 3, p-cymene, 4}. All the complexes were fully characterized by analytical and spectroscopic methods. P-31-{H-1} NMR, H-1-C-13 HETCOR or H-1-H-1 COSY correlation experiments were used to confirm the spectral assignments. Molecular structure of the Schiff base, 1 was also determined by X-ray single crystal diffraction study. The catalytic activity of complexes 3 and 4 in the transfer hydrogenation of acetophenone derivatives was tested. Stable ruthenium(II)-phosphinite complexes were found to be efficient catalysts in the transfer hydrogenation of aromatic ketones in excellent conversions up to 99% (up to 530 per hour) in the presence of iso-PrOH/KOH. (C) 2010 Elsevier B.V. All rights reserved.en_US
dc.description.sponsorshipTurkish Academy of Sciences and Dicle University [DUAPK 05-FF-27]en_US
dc.description.sponsorshipPartial support of this work by Turkish Academy of Sciences and Dicle University (Project Number: DUAPK 05-FF-27) is gratefully acknowledged.en_US
dc.identifier.doi10.1016/j.molcata.2010.04.010
dc.identifier.endpage81en_US
dc.identifier.issn1381-1169
dc.identifier.issn1873-314X
dc.identifier.issue1-2en_US
dc.identifier.scopus2-s2.0-77953712782
dc.identifier.scopusqualityN/A
dc.identifier.startpage75en_US
dc.identifier.urihttps://doi.org/10.1016/j.molcata.2010.04.010
dc.identifier.urihttps://hdl.handle.net/11468/15839
dc.identifier.volume326en_US
dc.identifier.wosWOS:000280118500010
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.relation.ispartofJournal of Molecular Catalysis A-Chemical
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectSchiff Baseen_US
dc.subjectBis(Phosphinite)en_US
dc.subjectTransfer Hydrogenationen_US
dc.subjectRutheniumen_US
dc.subjectCatalysisen_US
dc.subjectX-Rayen_US
dc.titleNovel neutral phosphinite bridged dinuclear ruthenium(II) arene complexes and their catalytic use in transfer hydrogenation of aromatic ketones: X-ray structure of a new Schiff base, N3,N3?-di-2-hydroxybenzylidene-[2,2?]bipyridinyl-3,3?-diamineen_US
dc.titleNovel neutral phosphinite bridged dinuclear ruthenium(II) arene complexes and their catalytic use in transfer hydrogenation of aromatic ketones: X-ray structure of a new Schiff base, N3,N3?-di-2-hydroxybenzylidene-[2,2?]bipyridinyl-3,3?-diamine
dc.typeArticleen_US

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