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Title: Azolium-based systems: application of an anion exchange resin (A- form) method and 1H NMR analysis of the charged-assisted (C<br>H)+·anion hydrogen bonds
Author: Dinarès Milà, M. Immaculada
Mesquida Estévez, Ma. Neus
Ibáñez Jiménez, Anna
Alcalde Pais, Ma. Ermitas (María de las Ermitas)
Keywords: Sals
Resines de bescanvi iònic
Solucions iòniques
Compostos heterocíclics
Ion exchange resins
Ionic solutions
Heterocyclic compounds
Issue Date: 18-Aug-2013
Publisher: Michigan Publishing
Abstract: The counteranion exchange of quaternary 1,2,3-triazolium salts was examined using a simple method that permitted halide ions to be swap for a variety of anions using an anion exchange resin (A¯ form). The method was applied to 1,2,3-triazolium-based ionic liquids and the iodideto- anion exchange proceeded in excellent to quantitative yields, concomitantly removing halide impurities. Additionally, an anion exchange resin (N3¯ form) was used to obtain the benzyl azide from benzyl halide under mild reaction. Likewise, following a similar protocol, bis(azidomethyl)arenes were also synthesized in excellent yields. The results of a proton NMR spectroscopic study of simple azolium-based ion pairs are discussed, with attention focused on the significance of the charged-assisted (C<br>H)+···anion hydrogen bonds of simple azolium systems such as 1-butyl-3-methylimidazolium and 1-benzyl-3-methyl-1,2,3-triazolium salts.
Note: Reproducció del document publicat a:
It is part of: Arkivoc, 2013, vol. 2014, num. 2, p. 85-102
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ISSN: 1551-7012
Appears in Collections:Articles publicats en revistes (Farmacologia, Toxicologia i Química Terapèutica)
Articles publicats en revistes (Nutrició, Ciències de l'Alimentació i Gastronomia)
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