doi:10.1021/om2005782engPalacios, LauraMiao, XiaoweiDi Giuseppe, AndreaPascal, Simon.Cunchillos, CarmenCastarlenas, RicardoPérez-Torrente, Jesús-JoséLahoz, Fernando J..Dixneuf, Pierre H.Oro, Luis A.Synthesis of a square-planar rhodium alkylidene N-heterocyclic carbene complex and its reactivity toward alkenesART-2011-74695The 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.2011http://zaguan.unizar.es/record/6204710.1021/om2005782http://zaguan.unizar.es/record/62047oai:zaguan.unizar.es:62047info:eu-repo/grantAgreement/ES/MINECO-FEDER/CTQ2010-15221info:eu-repo/grantAgreement/ES/MINECO/Consolider-Ingenio/CSD2006-0015info:eu-repo/grantAgreement/ES/MICINN-FEDER/CSD2009-00050info:eu-repo/grantAgreement/ES/DGA/E07Organometallics 30, 19 (2011), [16 pp.]All rights reservedhttp://www.europeana.eu/rights/rr-f/info:eu-repo/semantics/openAccess