NMR Enantiodifferentiation of Quaternary ...
Type de document :
Article dans une revue scientifique: Article original
DOI :
PMID :
URL permanente :
Titre :
NMR Enantiodifferentiation of Quaternary Ammonium Salts of Troger Base
Auteur(s) :
Michon, Christophe [Auteur]
Université de Genève = University of Geneva [UNIGE]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Goncalves-Farbos, Maria-Héléna [Auteur]
Université de Genève = University of Geneva [UNIGE]
Lacour, Jérôme [Auteur]
Université de Genève = University of Geneva [UNIGE]

Université de Genève = University of Geneva [UNIGE]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Goncalves-Farbos, Maria-Héléna [Auteur]
Université de Genève = University of Geneva [UNIGE]
Lacour, Jérôme [Auteur]
Université de Genève = University of Geneva [UNIGE]
Titre de la revue :
Chirality
Nom court de la revue :
Chirality
Numéro :
21
Pagination :
809-817
Date de publication :
2009-01-22
ISSN :
0899-0042
Mot(s)-clé(s) en anglais :
Pfeiffer effect
solvent effect
Troger base
NMR chiral solvating agent
quaternary ammonium ions
asymmetric ion pairing
solvent effect
Troger base
NMR chiral solvating agent
quaternary ammonium ions
asymmetric ion pairing
Discipline(s) HAL :
Chimie
Résumé en anglais : [en]
Hexacoordinated phosphorus BINPHAT anion 1 is an efficient NMR chiral solvating agent for quaternary ammonium cations (quats) derived from Tröger base leading to large separations of the proton signals of the enantiomers ...
Lire la suite >Hexacoordinated phosphorus BINPHAT anion 1 is an efficient NMR chiral solvating agent for quaternary ammonium cations (quats) derived from Tröger base leading to large separations of the proton signals of the enantiomers and even in polar solvent media such as CD3CN (ΔΔδ up to 0.12 ppm). Quite surprisingly, this efficacy in the NMR split efficiency is not translated into a supramolecular stereocontrol (Pfeiffer effect) of the cation configuration by the anion.Lire moins >
Lire la suite >Hexacoordinated phosphorus BINPHAT anion 1 is an efficient NMR chiral solvating agent for quaternary ammonium cations (quats) derived from Tröger base leading to large separations of the proton signals of the enantiomers and even in polar solvent media such as CD3CN (ΔΔδ up to 0.12 ppm). Quite surprisingly, this efficacy in the NMR split efficiency is not translated into a supramolecular stereocontrol (Pfeiffer effect) of the cation configuration by the anion.Lire moins >
Langue :
Anglais
Audience :
Internationale
Vulgarisation :
Non
Établissement(s) :
Université de Lille
CNRS
Centrale Lille
ENSCL
Univ. Artois
CNRS
Centrale Lille
ENSCL
Univ. Artois
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Date de dépôt :
2023-05-30T18:08:33Z
2024-04-26T09:15:10Z
2024-04-26T09:15:10Z