Anthocyanone A: A Quinone Methide Derivative Resulting from Malvidin 3-O-Glucoside Degradation
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- 作者：Paulo Lopes ; Tristan Richard ; Cé ; dric Saucier ; Pierre-Louis Teissedre ; Jean-Pierre Monti ; Yves Glories
- 刊名：Journal of Agricultural and Food Chemistry
- 出版年：2007
- 出版时间：April 4, 2007
- 年：2007
- 卷：55
- 期：7
- 页码：2698 - 2704
- 全文大小：234K
- 年卷期：v.55,no.7(April 4, 2007)
- ISSN：1520-5118
文摘
A new compound resulting from the oxidative degradation of maldivin 3-O-glucoside under acidconditions was detected in a wine model solution stored under 90 and 25 
f">C. It was isolated bysemipreparative HPLC, and its structure was elucidated by UV-vis spectra, mass spectrometry (LC/MS), and NMR spectroscopy (1-D and 2-D). The compound was identified as 8-
fchars/beta2.gif" BORDER=0 ALIGN="middle">-D-glucopyranosyl-2,4-dihydroxy-6-oxo-cyclohexa-2,4-dienyl acetic acid (anthocyanone A), which results from nucleophilicattack of hydrogen peroxide to maldivin 3-O-glucoside through a Baeyer-Villiger oxidation followedby other oxidations steps.
f">C. It was isolated bysemipreparative HPLC, and its structure was elucidated by UV-vis spectra, mass spectrometry (LC/MS), and NMR spectroscopy (1-D and 2-D). The compound was identified as 8-fchars/beta2.gif" BORDER=0 ALIGN="middle">-D-glucopyranosyl-2,4-dihydroxy-6-oxo-cyclohexa-2,4-dienyl acetic acid (anthocyanone A), which results from nucleophilicattack of hydrogen peroxide to maldivin 3-O-glucoside through a Baeyer-Villiger oxidation followedby other oxidations steps.