Condensed tannins. 17. Isolation of 4′,7-dihydroxyflavan-3,4-diol from Guibourtia coleosperma
- 1 May 1963
- journal article
- research article
- Published by Portland Press Ltd. in Biochemical Journal
- Vol. 87 (2), 439-444
- https://doi.org/10.1042/bj0870439
Abstract
A new leucoanthocyanidin was isolated from G. coleosperma (Rhodesian copalwood) and shown to be a 4[image], 7-dihydroxyflavan-3,4-diol (guibourta-cacidin). It is accompanied by 3[image],4[image], 7-trihydroxyflavan-3,4-diol and by tannins (mol, wt. 2200) which are polymers of both these leuco-anthocyanidins. The flavonol, dihydroflavonol and flavan-4-ol analogues of guibourtacacidin, as well as a corresponding flavan-3,4-diol, have been synthesized.This publication has 9 references indexed in Scilit:
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