Vanadium Imido NHC Complexes for Ring-Closing Olefin Metathesis Reactions
Tejeda, Gabriela (Florida International University. Department of Chemistry and Biochemistry)
Belov, Dmitry S. (Florida International University. Department of Chemistry and Biochemistry)
Fenoll, Didac A. (Universitat Autònoma de Barcelona. Departament de Química)
Rue, Kelly L. (Florida International University. Department of Chemistry and Biochemistry)
Tsay, Charlene (University of California. Department of Chemistry)
Solans Monfort, Xavier (Universitat Autònoma de Barcelona. Departament de Química)
Bukhryakov, Konstantin V. (Florida International University. Department of Chemistry and Biochemistry)

Data:	2022
Resum:	Vanadium bis-phosphine imido and oxo chloride alkylidenes have been extensively applied in the ring-closing metathesis of various acyclic olefins. However, their reactions involving ethylene have shown limited productivity due to rapid decomposition. The primary degradation pathway involving V bis-phosphine imido complexes is β-H elimination at an unsubstituted metallacyclobutane. In contrast, β-H elimination is disfavored for V oxo species, but bimolecular decomposition precludes its high productivity. Herein, we present the synthesis of V imido NHC complexes that are the most productive V catalysts toward various terminal olefins in ring-closing metathesis reactions. Experimental and computational studies suggest that β-H elimination and bimolecular decomposition are disfavored for V imido NHC complexes.
Ajuts:	Agencia Estatal de Investigación PID2020-112715GB-I00 Agència de Gestió d'Ajuts Universitaris i de Recerca 2017/SGR-1323
Drets:	Tots els drets reservats.
Llengua:	Anglès
Document:	Article ; recerca ; Versió acceptada per publicar
Publicat a:	Organometallics, Vol. 41, Issue 4 (February 2022) , p. 361-365, ISSN 1520-6041

DOI: 10.1021/acs.organomet.2c00013

Postprint 7 p, 1.1 MB

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