Proguibourtinidin Explained
A Proguibourtinidin is a type of condensed tannins formed from guibourtinidol (leucoguibourtinidin). They yield guibourtinidin when depolymerized under oxidative conditions.
They can be found in Guibourtia coleosperma (the African rosewood)[1] or in Cassia abbreviata.[2]
Notes and References
- Synthesis of condensed tannins. Part 18. Stilbenes as potent nucleophiles in regio- and stereo-specific condensations: Novel guibourtinidol-stilbenes from Guibourtia coleosperma . 10.1039/P19870001705 . 1987 . Steynberg . Jan P. . Ferreira . Daneel . Roux . David G. . Journal of the Chemical Society, Perkin Transactions 1 . 1705–1712 .
- The structure and synthesis of proguibourtinidins from Cassia abbreviata . 10.1016/0031-9422(95)00656-7 . 1996 . Malan . Elfranco . Swinny . Ewald . Ferreira . Daneel . Steynberg . Petrus . Phytochemistry . 41 . 4 . 1209–1213 . 1996PChem..41.1209M .