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dc.contributor.authorCarmona, Daniel-
dc.contributor.authorFerrer, Joaquina-
dc.contributor.authorGarcía, Néstor-
dc.contributor.authorRamírez, Paola-
dc.contributor.authorLahoz, Fernando J.-
dc.contributor.authorGarcía-Orduña, P.-
dc.contributor.authorOro, Luis A.-
dc.identifierdoi: 10.1021/om301089c-
dc.identifierissn: 0276-7333-
dc.identifiere-issn: 1520-6041-
dc.identifier.citationOrganometallics 32(6): 1609-1619 (2013)-
dc.description.abstractThe synthesis and characterization of cationic iridium(III) aqua complexes of the formula [IrH(H2O)(PN*)(PP)][SbF6]2 (PN* = chiral phosphano-oxazoline ligand; PP = diphosphane) as well as that of the OPOF2-containing complex [IrH(OPOF2)(PNiPr) (dppp)][SbF6] (10) are reported. The X-ray molecular structures of [IrH(H2O)(PNInd)(dppe)][SbF6]2 (1), [IrH(H 2O)(PNInd)(dppen)][SbF6]2 (2), and 10a have been determined. Dichloromethane solutions of these aqua complexes efficiently catalyze the enantioselective 1,3-dipolar cycloaddition of the nitrone N-benzylidenephenylamine N-oxide to methacrolein and Diels-Alder reactions between cyclopentadiene and trans-β-nitrostyrenes. In the first case, the catalytic reaction occurs with excellent endo selectivity and ee up to 85%; the Diels-Alder reaction occurs rapidly at room temperature with good endo:exo selectivity and ee up to 90%. The dipolar cycloaddition intermediates [IrH(methacrolein)(PNInd)(PP)][SbF6]2 (PP = (S,S)-chiraphos (11), (R)-prophos (12)) have been characterized, and the molecular structure of 11 has been determined by an X-ray structural analysis. © 2013 American Chemical Society.-
dc.description.sponsorshipWe thank the Ministerio de Educación y Ciencia (Grant CTQ 2009-10303/BQU) and Gobierno de Aragón (Grupo Consolidado: Catalizadores Organometálicos Enantioselectivos) for financial support. This work was supported by the CONSOLIDER INGENIO-2010 program under the project “Factoría de Crystalización” (CSD2006-0015).-
dc.publisherAmerican Chemical Society-
dc.titleChiral octahedral phosphano-oxazoline iridium(III) complexes as catalysts in asymmetric cycloaddition reactions-
dc.description.versionPeer Reviewed-
dc.contributor.funderMinisterio de Educación y Ciencia (España)-
dc.contributor.funderGobierno de Aragón-
dc.contributor.funderMinisterio de Economía y Competitividad (España)-
dc.contributor.funderFactoría Española de Cristalización-
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