Constituents of Geranium thunbergii Sieb. et Zucc. Part 14. Structures of didehydrogeraniin, furosinin, and furosin
- 1 January 1989
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Perkin Transactions 1
- No. 12,p. 2289-2296
- https://doi.org/10.1039/p19890002289
Abstract
Three novel tannins, dehydrogeraniin, furosinin, and furosin, members of the dehydroellagitannins, were isolated from the aerial part of Geranium thunbergii Sieb. et Zucc., and their structures were elucidated on the basis of spectral evidence and chemical reactions. Dehydrogeraniin and furosinin were found to form equilibrium mixtures composed of four and eight tautomers, respectively, due to the equilibration of two dehydrohexahydroxydiphenoyl groups and the anomerization of the glucose moiety in the latter compound.This publication has 1 reference indexed in Scilit:
- Constituents of Geranium thunbergii Sieb. et Zucc. Part 12. Hydrated stereostructure and equilibration of geraniinJournal of the Chemical Society, Perkin Transactions 1, 1982