169442 20260227133540.0 doi 10.1021/om900949j sideral 70738 ART-2010-70738 eng Buil, M. L. Universidad de Zaragoza (orcid)0000-0002-3284-1053 Dicationic alkylidene, olefin and alkoxyalkenylcarbene, osmium complexes stabilized by a NHC Ligand 2010 Complex [Os(═CHPh)(CH3CN)4(IPr)](OTf)2 (1) (IPr = 1,3-bis(2,6-diisopropylphenyl)imidazolylidene; OTf = CF3SO3) exchanges the alkylidene group with propylene to give styrene and [Os(═CHCH3)(CH3CN)4(IPr)](OTf)2 (2). The reaction of 1 with ethylene leads to [Os(η2-CH2═CH2)(CH3CN)4(IPr)](OTf)2 (3) via the propylene intermediate [Os(η2-CH2═CHCH3)(CH3CN)4(IPr)](OTf)2 (4). Acetonitrile displaces the olefin ligand of both 3 and 4 to generate the pentakis(solvento) derivative [Os(CH3CN)5(IPr)](OTf)2 (5). In 2-propanol and methanol, complex 5 reacts with 1,1-diphenyl-2-propyn-1-ol and 2-methyl-3-butyn-2-ol to yield the corresponding alkoxyalkenylcarbene compounds [Os{═C(OR)CH═CR′2}(CH3CN)4(IPr)](OTf)2 (R = CH(CH3)2; R′ = Ph (6), CH3 (7); R = CH3; R′ = Ph (8), CH3 (9)). The X-ray structures of 4, 5, and 6 are also reported. Access copy available to the general public Unrestricted info:eu-repo/grantAgreement/ES/DGA/E35 info:eu-repo/grantAgreement/ES/MICINN/CSD2007-00006 info:eu-repo/grantAgreement/ES/MICINN/CTQ2008-00810 info:eu-repo/semantics/openAccess All rights reserved http://www.europeana.eu/rights/rr-f/ 3.888 2010 CHEMISTRY, ORGANIC 10 / 56 = 0.179 2010 Q1 T1 CHEMISTRY, INORGANIC & NUCLEAR 6 / 43 = 0.14 2010 Q1 T1 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Castarlenas, R. (orcid)0000-0003-4460-8678 Esteruelas, M. A. Universidad de Zaragoza (orcid)0000-0002-4829-7590 Izquierdo, S. (orcid)0000-0002-6608-1910 Lalrempuia, R. Oñate, E. (orcid)0000-0003-2094-719X 2010 760 Universidad de Zaragoza Dpto. Química Inorgánica Área Química Inorgánica 29, 4 (2010), 876-882 Organometallics Organometallics 0276-7333 1052740 http://zaguan.unizar.es/record/169442/files/texto_completo.pdf Postprint 1127539 http://zaguan.unizar.es/record/169442/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:169442 articulos driver 2026-02-27-12:35:45 ARTICLE