A Redox-Switchable Gold(I) Complex for the Hydroamination of Acetylenes: A Convenient Way for Studying Ligand-Derived Electronic Effects
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INVESTIGACIONMetadatos
Título
A Redox-Switchable Gold(I) Complex for the Hydroamination of Acetylenes: A Convenient Way for Studying Ligand-Derived Electronic EffectsFecha de publicación
2022-03-31Editor
American Chemical SocietyISSN
2155-5435Cita bibliográfica
Ruiz-Zambrana, C.; Poyatos, M.; Peris, E. A Redox-Switchable Gold(I) Complex for the Hydroamination of Acetylenes: A Convenient Way for Studying Ligand-Derived Electronic Effects. ACS Catal. 2022, 12, 8, 4465–4472, DOI: 10.1021/acscatal.2c00613Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
https://pubs.acs.org/doi/full/10.1021/acscatal.2c00613Versión
info:eu-repo/semantics/publishedVersionPalabras clave / Materias
Resumen
A gold complex with a naphthalene-di-imide-functionalized N-heterocyclic carbene (NHC) ligand was prepared and characterized. The electrochemical studies reveal that the complex is able to undergo two successive ... [+]
A gold complex with a naphthalene-di-imide-functionalized N-heterocyclic carbene (NHC) ligand was prepared and characterized. The electrochemical studies reveal that the complex is able to undergo two successive reduction events, associated to the reduction of the NDI moiety of the NHC ligand. Once the redox-switchable properties of this Au(I) complex were proven, the complex was tested in the hydroamination of terminal alkynes. The activity of the neutral complex was moderate-to-high for this reaction, but the one-electron reduced species did not show any activity in the reaction. The activity of the catalyst could be toggled off and on several times by successively adding a reducing agent (cobaltocene) or an oxidant (acetylferrocenium tetrafluoroborate). The results indicate that the rate-determining step of the catalytic cycle is the nucleophilic attack of the amine on the Au-coordinated alkyne. [-]
Publicado en
ACS Catalysis, 2022, vol. 12, no 8Entidad financiadora
Ministerio de Ciencia, Innovación y Universidades | Universitat Jaume I
Identificador de la entidad financiadora
http://dx.doi.org/10.13039/501100011033
Código del proyecto o subvención
MICIU/ICTI2017-2020/PGC2018-093382-B-I00 | UJI-B2020-01 | UJI-B2018-46
Título del proyecto o subvención
Estructuras organometálicas supramoleculares para catálisis y reconocimiento molecular
Derechos de acceso
info:eu-repo/semantics/openAccess
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