2026-04-17T23:58:24Zhttps://recercat.cat/oai/requestoai:recercat.cat:10256/132992024-06-18T13:52:17Zcom_2072_452955com_2072_2054col_2072_453073
2024-06-18T13:52:17Z
urn:hdl:10256/13299
Silica-Supported Tungsten Carbynes (≡SiO)xW(≡CH)(Me)y (x = 1, y = 2; x = 2, y = 1): New Efficient Catalysts for Alkyne Cyclotrimerization
Riache, Nassima
Dery, Alexandre
Callens, Emmanuel
Poater Teixidor, Albert
Samantaray, Manoja K.
Dey, Raju
Hong, Jinhua
Li, Kun
Cavallo, Luigi
Basset, Jean-Marie
Funcional de densitat, Teoria del
Density functionals
Compostos organometàl·lics
Organometallic compounds
Catalitzadors organometàl·lics
Organometallic catalysts
The 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
A.P. thanks the Spanish MINECO for a Ramón y Cajal contract (RYC-2009-05226) and the European Commission for a Career Integration Grant (CIG09-GA-2011-293900)
2024-06-18T13:52:17Z
2024-06-18T13:52:17Z
info:eu-repo/date/embargoEnd/2026-01-01
info:eu-repo/date/embargoEnd/2026-01-01
2015-02-23
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://hdl.handle.net/10256/13299
info:eu-repo/semantics/altIdentifier/doi/10.1021/om500684e
info:eu-repo/semantics/altIdentifier/issn/0276-7333
info:eu-repo/semantics/altIdentifier/eissn/1520-6041
info:eu-repo/grantAgreement/MICINN//RYC-2009-05226/ES/RYC-2009-05226/
info:eu-repo/grantAgreement/EC/FP7/293900/EU/Ab initio Statics and Molecular Dynamics Simulation of Olefin Metathesis Catalysts for pharmacological purposes/COMPUTEDRUG
Tots els drets reservats
info:eu-repo/semantics/embargoedAccess
American Chemical Society (ACS)
© Organometallics, 2015, vol. 34, núm. 4, p. 690-695
Articles publicats (D-Q)