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Pàgina inicial > Articles > Articles publicats > Synthesis of Vanadium Oxo Alkylidene Complex and Its Reactivity in Ring-Closing Olefin Metathesis Reactions |
Data: | 2021 |
Resum: | V imido alkylidenes have been applied for the ring-opening metathesis polymerization involving cyclic olefins. However, those complexes found limited application in reactions with acyclic terminal olefins due to instability toward ethylene. Experimental and theoretical studies show that the β-hydride elimination from unsubstituted metallacyclobutene is the primary decomposition pathway in those systems. Herein, we report the synthesis of the first catalytically active V oxo alkylidene, VO(CHSiMe3)(PEt3)2Cl, which exhibits the highest reported productivity with various terminal olefins in ring-closing metathesis reactions among known V catalysts. Presented DFT studies indicate that β-hydride elimination is significantly disfavored for V oxo species. |
Ajuts: | Agencia Estatal de Investigación PID2020-112715GB-I00 Agència de Gestió d'Ajuts Universitaris i de Recerca 2017/SGR-1323 |
Nota: | Funding Information: We are grateful to the Florida International University and the New Faculty Development Grant provided by U.S. Nuclear Regulatory Commission for financial support. Financial support from MICINN [PID2020-112715GB-I00] and the Generalitat de Catalunya [2017SGR1323] are also gratefully acknowledged. Publisher Copyright: © 2021 American Chemical Society |
Drets: | Tots els drets reservats. |
Llengua: | Anglès |
Document: | Article ; recerca ; Versió acceptada per publicar |
Publicat a: | Organometallics, Vol. 40, Issue 17 (September 2021) , p. 2939-2944, ISSN 1520-6041 |
Postprint 7 p, 1.7 MB |