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dc.contributor.authorCarmona, Daniel-
dc.contributor.authorLamata, M. Pilar-
dc.contributor.authorViguri, Fernando-
dc.contributor.authorFerrer, Joaquina-
dc.contributor.authorGarcía, Néstor-
dc.contributor.authorLahoz, Fernando J.-
dc.contributor.authorMartín, M. Luisa-
dc.contributor.authorOro, Luis A.-
dc.date.accessioned2009-12-09T09:04:33Z-
dc.date.available2009-12-09T09:04:33Z-
dc.date.issued2006-07-19-
dc.identifier.citationEuropean Journal of Inorganic Chemistry 2006(16): 3155 - 3166 (2006)en_US
dc.identifier.issn1521-4095-
dc.identifier.urihttp://hdl.handle.net/10261/19398-
dc.description12 pages, 5 tables, scheme 5.en_US
dc.description.abstractRuthenium complexes of formula [(6-arene)Ru(LL*)(H2O)][SbF6]2 (arene = C6H6, p-MeC6H4iPr, C6Me6; LL* = bidentate chelate chiral ligand with PN, PP or NN donor atoms) have been tested as catalyst precursors for the asymmetric 1,3-dipolar cycloaddition of nitrones to methacrolein. The reaction occurs quantitatively with perfect endo selectivity and moderate enantioselectivity (up to 74 % ee). The ruthenium aqua complexes can be prepared from the corresponding chlorides, [(6-arene)RuCl(LL*)][SbF6]. Dipolarophile intermediates [(6-arene)Ru(PNiPr)(methacrolein)][SbF6]2 {PNiPr = (4S)-2-(2-diphenylphosphanylphenyl)-4-isopropyl-1,3-oxazoline} as well as nitrone-containing complexes [(p-MeC6H4iPr)Ru(PNiPr)(nitrone)][SbF6]2 (nitrone = N-benzylidenephenylamine N-oxide, N-benzylidenemethylamine N-oxide, 3,4-dihydroisoquinoline N-oxide) have been also isolated and characterised. The crystal structures of the chlorides (RRu)-[(6-C6Me6)RuCl(PNiPr)][SbF6], (RRu)-[(6-C6H6)RuCl(PNInd)][SbF6] {PNInd = (3aR,8aS)-2-[2-(diphenylphosphanyl)phenyl]-3a,8a-dihydroindane[1,2-d]oxazole} and those of the aqua solvates (RRu)-[(6-arene)Ru(PNiPr)(H2O)][SbF6]2 (arene = C6H6, C6Me6) were determined by X-ray diffraction methods.en_US
dc.description.sponsorshipThis work was supported by the Dirección General de Investigación Científica y Técnica (Grants BQU 2002-1729 and BQU 2003-1096)en_US
dc.format.extent13824 bytes-
dc.format.mimetypeapplication/vnd.ms-excel-
dc.language.isoengen_US
dc.publisherWiley-VCHen_US
dc.rightsclosedAccessen_US
dc.subjectAsymmetric catalysisen_US
dc.subjectCycloadditionsen_US
dc.subjectRutheniumen_US
dc.subjectPhosphanyloxazolinesen_US
dc.subjectHalf-sandwich complexesen_US
dc.titleChiral half-sandwich ruthenium(II) complexes as catalysts in 1,3-dipolar cycloaddition reactions of nitrones with methacroleinen_US
dc.typeartículoen_US
dc.identifier.doi10.1002/ejic.200600408-
dc.description.peerreviewedPeer revieweden_US
dc.relation.publisherversionhttp://dx.doi.org/10.1002/ejic.200600408en_US
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