Immobilized catalysts for iridium-catalyzed allylicamination

• Verfasst von: Malakar, Chandi Charan [VerfasserIn]
• Verfasst von: Helmchen, Günter [VerfasserIn]
• Titel: Immobilized catalysts for iridium-catalyzed allylicamination
• Titelzusatz: rate enhancement by immobilization
• Verf.angabe: Chandi C. Malakar and Günter Helmchen
• E-Jahr: 2015
• Jahr: March 18, 2015
• Umfang: 8 S.
• Fussnoten: Gesehen am 05.06.2020
• Titel Quelle: Enthalten in: Chemistry - a European journal
• Ort Quelle: Weinheim : Wiley-VCH, 1995
• Jahr Quelle: 2015
• Band/Heft Quelle: 21(2015), 19, Seite 7127-7134
• ISSN Quelle: 1521-3765
• DOI: doi:10.1002/chem.201500382
• Datenträger: Online-Ressource
• Sprache: eng
• Sach-SW: allylic compounds
• Sach-SW: amination
• Sach-SW: asymmetric catalysis
• Sach-SW: iridium
• Sach-SW: supported catalysts
• K10plus-PPN: 1699961522

Abstract

Abstract The first immobilized catalyst for Ir-catalyzed asymmetric allylic aminations is described. The catalyst is a cationic (π-allyl)Ir complex bound by cation exchange to an anionic silica gel support. Preparation of the catalyst is facile, and the supported catalyst displayed considerably enhanced activity compared with the parent homogeneous catalyst. Up to 43?consecutive amination runs were possible in recycling experiments.