Unprecedent formation of methylsilylcarbonates from iridium-catalyzed reduction of CO2 with hydrosilanes

Guzmán, Jefferson (Universidad de Zaragoza) ; García-Orduña, Pilar (Universidad de Zaragoza) ; Lahoz, Fernando J. (Universidad de Zaragoza) ; Fernández-Alvarez, Francisco J. (Universidad de Zaragoza)

Resumen: The iridium complex [Ir(µ-CF3SO3)(¿2-NSiMe2)2]2 (3) (NSiMe2 = {4-methylpyridine-2-yloxy}dimethylsilyl) has been prepared by reaction of [Ir(µ-Cl)(¿2-NSiMe2)2]2 (1) with two equivalents of AgCF3SO3. The solid structure of 3 evidenced its dinuclear nature, being a rare example of an iridium species with triflate groups acting as bridges. The 3-catalyzed reduction of CO2 with HSiMe(OSiMe3)2 affords a mixture of the corresponding silylformate and methoxysilane together with the silylcarbonate CH3OCO2SiMe(OSiMe3)2 (4a). This is the first time that the formation of silylcarbonates has been observed from the catalytic reduction of CO2 with silanes. Analogous behaviour has been observed when HSiMe2Ph and HSiMePh2 were used as reductants.

Idioma: Inglés

DOI: 10.1039/d0ra00204f

Año: 2020

Publicado en: RSC Advances 10, 16 (2020), 9582-9586
ISSN: 2046-2069

Factor impacto JCR: 3.361 (2020)

Categ. JCR: CHEMISTRY, MULTIDISCIPLINARY rank: 81 / 178 = 0.455 (2020) - Q2 - T2

Factor impacto SCIMAGO: 0.746 - Chemistry (miscellaneous) (Q1) - Chemical Engineering (miscellaneous) (Q1)

Financiación: info:eu-repo/grantAgreement/ES/DGA-FSE/E42-17R
Financiación: info:eu-repo/grantAgreement/ES/MICINN/PGC2018-099383-B-I00

Tipo y forma: Article (Published version)

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