Oxidative coupling. Part 11. Approaches to the synthesis of bikaverin
作者:John R. Lewis、John G. Paul
DOI:10.1039/p19810000770
日期:——
The synthesis of orcinoylhydroquinones has been achieved by photochemical Fries rearrangement of their esters. A study of their oxidation (DDQ) shows that oxidative coupling occurs to produce a spirocyclohexenedione which can be thermally isomerised to the xanthone. The synthesis of a tetracyclic xanthone (related to bikaverin) is described.
Orcinoylhydroquinones的合成已通过其酯的光化学Fries重排实现。对它们的氧化(DDQ)的研究表明,发生氧化偶联产生螺环己烯二酮,该螺环己烯二酮可热异构化为the吨酮。描述了四环黄酮(与比卡韦林有关)的合成。