90522-33-1Relevant academic research and scientific papers
Spectral Evidence for the Formation of Quinone Methide Intermediates from 5- and 7-Hydroxyflavanoids
Attwood, Michael R.,Brown, Ben R.,Lisseter, Stephen G.,Torrero, Christopher L.,Weaver, Philip M.
, p. 177 - 179 (1984)
The u.v. spectra of 5- and 7-hydroxyflavan-4-ols in acid solution are interpreted in terms of the ?-?* transition of quinone methide intermediates; the enhanced reactivity of 4-substituted 7-hydroxyflavans compared to 4-substituted 7-methoxyflavans supports this mechanism which may be operative in the biosynthesis of polyflavanoids (e.g. condensed tannins).
