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Silica-supported tungsten carbynes (≡SiO)xW(≡CH)(Me)y (x = 1, y = 2; X = 2, y = 1): New efficient catalysts for alkyne cyclotrimerization

dc.contributor.authorRiache, Nassima
dc.contributor.authorDéry, Alexandre
dc.contributor.authorCallens, Emmanuel
dc.contributor.authorPoater, Albert
dc.contributor.authorSamantaray, Manoja
dc.contributor.authorDey, Raju
dc.contributor.authorHong, Jinhua
dc.contributor.authorLi, Kun
dc.contributor.authorCavallo, Luigi
dc.contributor.authorBasset, Jean-Marie
dc.date.accessioned2015-08-03T12:30:29Z
dc.date.available2015-08-03T12:30:29Z
dc.date.issued2015-02-02
dc.identifier.citationRiache, N., Dery, A., Callens, E., Poater, A., Samantaray, M., Dey, R., … Basset, J.-M. (2015). Silica-Supported Tungsten Carbynes (≡SiO)xW(≡CH)(Me)y (x = 1, y = 2; x = 2, y = 1): New Efficient Catalysts for Alkyne Cyclotrimerization. Organometallics, 34(4), 690–695. doi:10.1021/om500684e
dc.identifier.issn02767333
dc.identifier.doi10.1021/om500684e
dc.identifier.urihttp://hdl.handle.net/10754/564064
dc.description.abstractThe activity of silica-supported tungsten carbyne complexes (≡SiO)xW(≡CH)(Me)y (x = 1, y = 2; x = 2, y = 1) toward alkynes is reported. We found that they are efficient precatalysts for terminal alkyne cyclotrimerization with high TONs. We also demonstrate that this catalyst species is active for alkyne cyclotrimerization without the formation of significant alkyne metathesis products. Additional DFT calculations highlight the importance of the W coordination sphere in supporting this experimental behavior.
dc.description.sponsorshipResearch reported in this publication was supported by the King Abdullah University of Science and Technology. A.P. thanks the Spanish MINECO for a Ramon y Cajal contract (RYC-2009-05226) and the European Commission for a Career Integration Grant (CIG09-GA-2011-293900).
dc.publisherAmerican Chemical Society (ACS)
dc.titleSilica-supported tungsten carbynes (≡SiO)xW(≡CH)(Me)y (x = 1, y = 2; X = 2, y = 1): New efficient catalysts for alkyne cyclotrimerization
dc.typeArticle
dc.contributor.departmentAdvanced Nanofabrication, Imaging and Characterization Core Lab
dc.contributor.departmentChemical Science Program
dc.contributor.departmentCore Labs
dc.contributor.departmentImaging and Characterization Core Lab
dc.contributor.departmentKAUST Catalysis Center (KCC)
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.identifier.journalOrganometallics
dc.contributor.institutionDepartament de Química, Universitat de Girona, Campus de MotiliviGirona, Spain
kaust.personRiache, Nassima
kaust.personCallens, Emmanuel
kaust.personSamantaray, Manoja
kaust.personDey, Raju
kaust.personLi, Kun
kaust.personCavallo, Luigi
kaust.personBasset, Jean-Marie
kaust.personDéry, Alexandre
kaust.personPoater, Albert
kaust.personHong, Jinhua
dc.date.published-online2015-02-02
dc.date.published-print2015-02-23


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