Hydroboration and hydrogenation of an osmium-carbon triple bond: Osmium chemistry of a bis-s-borane

Buil, M.L. (Universidad de Zaragoza) ; Cardo, J.J.F. ; Esteruelas, M.A. ; Fernández, I. ; Oñate, E.

Resumen: The complex [OsHCl(¿CPh)(IPr)(PiPr3)]OTf (1; IPr = 1,3-bis(2,6-iisopropylphenyl)imidazolylidene, OTf =CF3SO3) replaces the chloride ligand with a hydroxo group to give [OsH(OH)(¿CPh)(IPr)(PiPr3)]OTf (2), which undergoes hydroboration and hydrogenation of its metal-carbon triple bond. The hydroboration products depend upon the reagent used. Treatment of 2 with Na[BH4] leads to the bis-s-borane complex OsH2(¿2:¿2-H2BCH2Ph)(IPr)(PiPr3) (3), whereas pinacolborane (HBPin) affords the arene compound [Os(¿6-C6H5CH2Bpin)H(IPr)(PiPr3)]OTf (4). The hydrogenation of the triple bond of 2 occurs under 4 atm of H2 and yields the toluene derivative [Os(¿6-C6H5CH3)H(IPr)(PiPr3)]OTf (5).

Idioma: Inglés

DOI: 10.1021/om501274x

Año: 2015

Publicado en: Organometallics 34, 3 (2015), 547-550
ISSN: 0276-7333

Factor impacto JCR: 4.186 (2015)

Categ. JCR: CHEMISTRY, ORGANIC rank: 12 / 59 = 0.203 (2015) - Q1 - T1
Categ. JCR: CHEMISTRY, INORGANIC & NUCLEAR rank: 9 / 46 = 0.196 (2015) - Q1 - T1

Factor impacto SCIMAGO: 1.923 - Inorganic Chemistry (Q1) - Physical and Theoretical Chemistry (Q1) - Organic Chemistry (Q1)

Financiación: info:eu-repo/grantAgreement/ES/DGA/E35
Financiación: info:eu-repo/grantAgreement/ES/MINECO/CTQ2011-23459
Financiación: info:eu-repo/grantAgreement/ES/MINECO/CTQ2013-44303-P
Financiación: info:eu-repo/grantAgreement/ES/MINECO/CTQ2014-51912-REDC

Tipo y forma: Article (PostPrint)

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