Polymeric proanthocyanidins: interflavanoid linkage isomerism in (epicatechin-4)-(epicatechin-4)-catechin procyanidins
- 1 January 1981
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Chemical Communications
- No. 7,p. 320-322
- https://doi.org/10.1039/c39810000320
Abstract
Heterogeneity of the interflavanoid linkages in trimeric procyanidinns was demonstrated by the isolation of epicatechin-4,8-epicatechin-4,8-catechin (1), epicatechin-4,8-epicatechin-4,6-catechin (2), and epicatechinditions used, thus establishing the validity of partial acid-catalysed thiolytic cleavage for deeteermining the configuration of interflavanoid linkages in oligomeric and polymeric procyanidins.Keywords
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