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 oxidativecoupling occurs to produce a spirocyclohexenedione which can be thermally isomerised to the xanthone. The synthesis of a tetracyclic xanthone (related to bikaverin) is described.