Synthesis of a square-planar rhodium alkylidene N-heterocyclic carbene complex and its reactivity toward alkenes

Palacios, Laura ; Miao, Xiaowei ; Di Giuseppe, Andrea ; Pascal, Simon. ; Cunchillos, Carmen ; Castarlenas, Ricardo ; Pérez-Torrente, Jesús-José ; Lahoz, Fernando J.. ; Dixneuf, Pierre H. ; Oro, Luis A.

Resumen: The first rhodium alkylidene square-planar complex stabilized by an N-heterocyclic carbene ligand, RhCl(-CHPh)(IPr)PPh3 (2; IPr = 1,3-bis(2,6-diisopropylphenyl)imidazol-2-carbene), has been prepared by reaction of RhCl(IPr)(PPh3)2 (1) with phenyldiazomethane and its dynamic behavior in solution studied. Treatment of 2 with alkenes results in the formation of the ¿2-olefin complexes RhCl(¿2-CH2-CHR)(IPr)PPh3 (3, R = H; 4, R = Ph; 5, R = OEt) and new olefins arising from the coupling of the alkylidene with the alkenes, likely via a metallacyclobutane intermediate.

Idioma: Inglés

DOI: 10.1021/om2005782

Año: 2011

Publicado en: Organometallics 30, 19 (2011), [16 pp.]
ISSN: 0276-7333

Factor impacto JCR: 3.963 (2011)

Categ. JCR: CHEMISTRY, ORGANIC rank: 10 / 56 = 0.179 (2011) - Q1 - T1
Categ. JCR: CHEMISTRY, INORGANIC & NUCLEAR rank: 6 / 44 = 0.136 (2011) - Q1 - T1

Financiación: info:eu-repo/grantAgreement/ES/DGA/E07
Financiación: info:eu-repo/grantAgreement/ES/MICINN-FEDER/CSD2009-00050
Financiación: info:eu-repo/grantAgreement/ES/MINECO/Consolider-Ingenio/CSD2006-0015
Financiación: info:eu-repo/grantAgreement/ES/MINECO-FEDER/CTQ2010-15221

Tipo y forma: Article (PostPrint)