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Singly Hydrogen Bonded Supramolecular Ligands for Highly Selective Rhodium-Catalyzed Hydrogenation Reactions

✍ Scribed by Pierre-Alain R. Breuil; Frederic W. Patureau; Joost N. H. Reek

Publisher
John Wiley and Sons
Year
2009
Tongue
English
Weight
416 KB
Volume
48
Category
Article
ISSN
0044-8249

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✦ Synopsis

Abstract

H bonds make the catalysts! A single hydrogen bond between ligands coordinated to a rhodium center is critical for the formation of pure supramolecular catalysts for asymmetric hydrogenation reactions. The ester group of the amidite ligand (see scheme) also forms a hydrogen bond with the coordinated substrate. Use of the heterocomplex afforded the highest enantioselectivity reported to date for the hydrogenation of several ester substrates.magnified image

📜 SIMILAR VOLUMES

Singly Hydrogen Bonded Supramolecular Li
Singly Hydrogen Bonded Supramolecular Ligands for Highly Selective Rhodium-Catalyzed Hydrogenation Reactions
✍ Pierre-Alain R. Breuil; Frederic W. Patureau; Joost N. H. Reek 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 416 KB 👁 1 views

## Abstract **Erst die H‐Brücke macht den Katalysator!** Eine einzige Wasserstoffbrücke verbindet an ein Rhodiumzentrum koordinierte Liganden und erzeugt supramolekulare Katalysatoren für die asymmetrische Hydrierung. Die Estergruppe des Amiditliganden (siehe Schema) bildet eine weitere Wasserstoff

PhthalaPhos: Chiral Supramolecular Ligan
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We thank the European Commission [RTN Network (R)Evolutionary Catalysis MRTN-CT-2006-035866] for financial support. L. Pignataro thanks Milan University for a postdoctoral fellowship ("Assegno di ricerca"). HRMS spectra were performed at CIGA (Milan University). We are grateful to Dr. Laura Belvisi

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✍ Luca Pignataro; Stefano Carboni; Monica Civera; Raffaele Colombo; Umberto Piarul 📂 Article 📅 2010 🏛 John Wiley and Sons 🌐 English ⚖ 427 KB 👁 1 views

We thank the European Commission [RTN Network (R)Evolutionary Catalysis MRTN-CT-2006-035866] for financial support. L. Pignataro thanks Milan University for a postdoctoral fellowship ("Assegno di ricerca"). HRMS spectra were performed at CIGA (Milan University). We are grateful to Dr. Laura Belvisi

ChemInform Abstract: Phosphonites Based
ChemInform Abstract: Phosphonites Based on the Paracyclophane Backbone: New Ligands for Highly Selective Rhodium-Catalyzed Asymmetric Hydrogenation.
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