Ítem
| Ministerio de Economía y Competitividad (Espanya) | |
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Riache, Nassima
Dery, Alexandre Callens, Emmanuel Poater Teixidor, Albert Samantaray, Manoja K. Dey, Raju Hong, Jinhua Li, Kun Cavallo, Luigi Basset, Jean Marie |
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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) |
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| http://hdl.handle.net/2072/298699 | |
| eng | |
| American Chemical Society (ACS) | |
| Tots els drets reservats | |
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Funcional de densitat, Teoria del
Density functionals Compostos organometàl·lics Organometallic compounds Catalitzadors organometàl·lics Organometallic catalysts |
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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 | |
| info:eu-repo/semantics/article | |
| Recercat |
