Structural elucidation of new dimeric ellagitannins from Quercus robur L. roburins A–E
- 1 January 1991
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Perkin Transactions 1
- No. 7,p. 1653-1660
- https://doi.org/10.1039/p19910001653
Abstract
Eight ellagitannins from Quercus robur L. wood have been studied by high-resolution 1H and 13C NMR and FAB-MS spectroscopy. Three of these polyphenols are known compounds, namely, castalagin, vescalagin, and grandinin. Five of the ellagitannins are new oligomeric compounds containing vescalagin or castalagin moieties bonded to a pentose, lyxose or xylose. The inter-unit linkages are carbon–carbon bonds between C-1 of the glucosyl residue of one unit and either the C-2′ of the hexahydroxydiphenoyl (HHDP) group of a second unit or the C-1 of a pentosyl sugar.Keywords
This publication has 22 references indexed in Scilit:
- Roburin A, A dimeric ellagitannin from heartwood of Quercus roburPhytochemistry, 1991
- Insoluble ellagitannins in Castanea sativa and Quercus petraea woodsPhytochemistry, 1991
- Polyphenols of Quercus robus L.Journal of Chromatography A, 1990
- Oligomeric Hydrolyzable Tannins, a New Class of Plant PolyphenolsHETEROCYCLES, 1990
- Traditional Herbal Medicines - The Role of PolyphenolsPlanta Medica, 1989
- New Methods of Analyzing TanninsJournal of Natural Products, 1989
- Polyphenols of Quercus robur: Adult tree and in vitro grown calli and shootsPhytochemistry, 1988
- Some Aspects of the Wooden Container as a Factor in Wine MaturationPublished by American Chemical Society (ACS) ,1974
- Inhibition of Wood-Rotting Fungi by Ellagitannins in the Heartwood of Quercus albaPhytopathology®, 1972
- Über die Gerbstoffe aus dem Holz der Edelkastanie und der Eiche, II. Die Isolierung von Castalagin, Vescalagin, Castalin und VescalinEuropean Journal of Organic Chemistry, 1967