131135 20240205173707.0 doi 10.1021/ja904893j sideral 61808 ART-2009-61808 eng Castro-Rodrigo, R. Formation of Osmium- and Ruthenium-Cyclobutylidene Complexes by Ring Expansion of Alkylidenecyclopropanes 2009 Alkylidenecyclopropanes containing a chelation assistant at the terminal carbon atom of the olefinic moiety undergo an Os- or Ru-promoted ring expansion reaction to afford metal cyclobutylidene derivatives. The process occurs through a novel mechanism that implies a 1,2-migration of a CH2 group of the three-membered ring from an olefinic carbon atom to the other one. It takes place, without direct participation of the metal, on a metallaheterocyclopentene intermediate which is generated from an η2-methylenecyclopropane species stabilized by coordination of the chelation assistant. 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/grantAgreement/ES/MICINN/SAF2007-61015 info:eu-repo/semantics/openAccess All rights reserved http://www.europeana.eu/rights/rr-f/ 8.58 2009 CHEMISTRY, MULTIDISCIPLINARY 7 / 139 = 0.05 2009 Q1 T1 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Esteruelas, M.A. Universidad de Zaragoza (orcid)0000-0002-4829-7590 Fuertes, S. (orcid)0000-0003-1812-3175 Lopez, A.M. Universidad de Zaragoza (orcid)0000-0001-7183-4975 Lopez, F. (orcid)0000-0003-0031-1880 Mascarenas, J.L. Mozo, S. Onate, E. (orcid)0000-0003-2094-719X Saya, L. Villarino, L. 2010 760 Universidad de Zaragoza Dpto. Química Inorgánica Área Química Inorgánica 131, 43 (2009), 15572-15573 J. Am. Chem. Soc. Journal of the American Chemical Society 0002-7863 276559 http://zaguan.unizar.es/record/131135/files/texto_completo.pdf Postprint 852663 http://zaguan.unizar.es/record/131135/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:131135 articulos driver 2024-02-05-15:07:04 ARTICLE