作者:L. Jurd
DOI:10.1016/0040-4020(67)85056-7
日期:1967.1
Flavylium salts and d-catechin condense oxidatively to yield crystalline 4-flavanylflavylium salts. Aerial oxidation is not involved in these condensation reactions. A 4-flavanylflavene is first formed and then oxidized by a second molecule of the flavylium salt, which is reduced to a monomeric flav-2-ene. This conclusion is supported by studies on the oxidation of model phenolic flav-2-enes. Disproportionation
黄酮盐和d-儿茶素氧化缩合产生结晶的4-黄酮基黄酮盐。空气氧化不参与这些缩合反应。首先形成4-黄烷酮黄酮,然后被第二分子的黄酮盐氧化,将其还原为单体黄酮-2-烯。该结论得到了对模型酚黄酮-2-烯氧化的研究的支持。黄酮的歧化,即。VIII,首次明确证实了黄酮盐和相应的黄烷。