Iridium models of rhodium Intermediates in hydroformylation catalysis

• Verfasst von: Abkai, Golnar [VerfasserIn]
• Verfasst von: Schmidt, Sebastian [VerfasserIn]
• Verfasst von: Rosendahl, Tobias [VerfasserIn]
• Verfasst von: Rominger, Frank [VerfasserIn]
• Verfasst von: Hofmann, Peter [VerfasserIn]
• Titel: Iridium models of rhodium Intermediates in hydroformylation catalysis
• Titelzusatz: isolation and molecular structures of fluxional ae and ee isomers
• Verf.angabe: Golnar Abkai, Sebastian Schmidt, Tobias Rosendahl, Frank Rominger, and Peter Hofmann
• E-Jahr: 2014
• Jahr: June 5, 2014
• Umfang: 3 S.
• Fussnoten: Gesehen am 24.07.2020
• Titel Quelle: Enthalten in: Organometallics
• Ort Quelle: Washington, DC : ACS Publ., 1982
• Jahr Quelle: 2014
• Band/Heft Quelle: 33(2014), 12, Seite 3212-3214
• ISSN Quelle: 1520-6041
• DOI: doi:10.1021/om401139u
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1725516071

Abstract

We report the synthesis and single-crystal molecular structures of two stereoisomers of trigonal-bipyramidal hydrido dicarbonyl Ir complexes [(L2)Ir(H)(CO)2] with ae (axial-equatorial) and ee (equatorial-equatorial) ligand P coordination and fluxional behavior in solution. L2 is a new chelating bisphosphite with unprecedented high selectivity in Rh-catalyzed bis-hydroformylation of butadiene to adipic aldehyde. These Ir analogues are ideal stabilized structural models for nonseparable ae and ee Rh-hydroformylation resting state isomers [(L2)Rh(H)(CO)2]. With Ir, both stereoisomers with the same ligand could be characterized independently for the first time.