Characterization of polyphenols from plant materials through their silylation and 29Si NMR spectroscopy-line assignment through 29Si, 13C spin-spin couplings
Copyright (c) 2005 John Wiley & Sons, Ltd.
| Publié dans: | Magnetic resonance in chemistry : MRC. - 1985. - 43(2005), 10 vom: 15. Okt., Seite 829-34 |
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| Auteur principal: | |
| Autres auteurs: | , , , , , |
| Format: | Article |
| Langue: | English |
| Publié: |
2005
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| Accès à la collection: | Magnetic resonance in chemistry : MRC |
| Sujets: | Journal Article Research Support, Non-U.S. Gov't Carbon Isotopes Flavonoids Isotopes Phenols Polyphenols Silicon Z4152N8IUI |
| Résumé: | Copyright (c) 2005 John Wiley & Sons, Ltd. The lines in (29)Si NMR spectra of silylated polyphenols and some other compounds are difficult to assign owing to the absence of couplings with protons outside the silyl group. The assignment can be derived through small (n)J((29)Si, (13)C) couplings (n > 1). Using a previously described method for measurements of these couplings, the assignment procedure is demonstrated here on three examples of trimethylsilylated phenols: 7-hydroxyflavone, ferulic acid, and quercetin. In some cases the procedure can be used to identify carbon atoms to which the siloxy groups are attached |
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| Description: | Date Completed 05.12.2005 Date Revised 21.11.2013 published: Print Citation Status MEDLINE |
| ISSN: | 0749-1581 |