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DOSY NMR applied to analysis of flavonoid glycosides from Bidens sulphurea
Author(s) -
Rodrigues Edilene Delphino,
da Silva Denise Brentan,
de Oliveira Dionéia Camilo Rodrigues,
da Silva Gil Valdo José
Publication year - 2009
Publication title -
magnetic resonance in chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.483
H-Index - 72
eISSN - 1097-458X
pISSN - 0749-1581
DOI - 10.1002/mrc.2516
Subject(s) - chemistry , flavonoid , glycoside , proton nmr , organic chemistry , chromatography , antioxidant
2D DOSY 1 H NMR has proved to be a useful technique in the identification of the molecular skeleton of the four major compounds of ethyl acetate extract of aerial parts of Bidens sulphurea (Asteraceae). The combination of this technique with HPLC, mass spectrometry and other NMR techniques enabled the identification of four flavonoid glycosides: quercetin‐3‐ O ‐β‐ D ‐galactopyranoside, quercetin‐3‐ O ‐β‐ D ‐glycopyranoside, quercetin‐3‐ O ‐α‐ L ‐arabinofuranoside and quercetin‐3‐ O ‐β‐ D ‐rhamnopyranoside. Copyright © 2009 John Wiley & Sons, Ltd.