Reactivity of Ir–NSiN Complexes: Ir-Catalyzed Dehydrogenative Silylation of Carboxylic Acids

Julián, A. ; Garcés, K. ; Lalrempuia, R. ; Jaseer, E.A. ; García-Orduña, P. (Universidad de Zaragoza) ; Fernández-Alvarez, F.J. (Universidad de Zaragoza) ; Lahoz, F.J. (Universidad de Zaragoza) ; Oro, L.A. (Universidad de Zaragoza)

Resumen: This work describes the results from the studies on the potential of [Ir(µ-Cl)(cod)]2 (cod=1,5-cyclooctadiene) as metallic precursor for the preparation of Ir(NSiN) complexes (NSiN=fac-bis-(pyridine-2-yloxy)methylsilyl). The reaction of [Ir(µ-Cl)(cod)]2 with bis-(pyridine-2-yloxy)methylsilane enabled the synthesis of [Ir(H)(Cl)(NSiN)(¿2-cod)] with an uncommon ¿2-coordination mode for the cod ligand. The application of Ir–NSiN species as catalysts precursors for the dehydrogenative silylation of carboxylic acids was also explored. The outcomes from these catalytic studies revealed a clear influence of the ancillary ligand on the catalytic activity of Ir–NSiN species. Thus, whereas [Ir(H)(CF3SO3)(NSiN)(coe)] shows poor catalytic activity, the related complex [Ir(H)(CF3CO2)(NSiN)(coe)] with a trifluoroacetate ligand was demonstrated to be a highly active catalyst precursor.

Idioma: Inglés

DOI: 10.1002/cctc.201701488

Año: 2018

Publicado en: ChemCatChem 10, 5 (2018), 1027-1034
ISSN: 1867-3880

Factor impacto JCR: 4.495 (2018)

Categ. JCR: CHEMISTRY, PHYSICAL rank: 43 / 148 = 0.291 (2018) - Q2 - T1

Factor impacto SCIMAGO: 1.472 - Catalysis (Q1) - Physical and Theoretical Chemistry (Q1) - Organic Chemistry (Q1) - Inorganic Chemistry (Q1)

Financiación: info:eu-repo/grantAgreement/ES/DGA-FSE/E07
Financiación: info:eu-repo/grantAgreement/ES/MINECO-FEDER/CTQ2013-42532-P
Financiación: info:eu-repo/grantAgreement/ES/MINECO-FEDER/CTQ2015-67366-P
Financiación: info:eu-repo/grantAgreement/ES/MINECO-FSE/PTA contract

Tipo y forma: Article (PostPrint)

Área (Departamento): Área Química Inorgánica (Dpto. Química Inorgánica)