Condensed tannins: quinone methide intermediates in procyanidin synthesis
- 1 January 1983
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Chemical Communications
- No. 18,p. 1035-1036
- https://doi.org/10.1039/c39830001035
Abstract
Comparisons of acid- and base-catalysed reactions of epicatechin-(4β)-phenyl sulphide and leucocyanidin show that condensations proceed more rapidly at alkaline than at acidic pH so the biosynthesis of condensed tannins may occur through a quinone methide rather than a carbocation intermediate.Keywords
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