71639-99-1Relevant articles and documents
Oxidative Coupling. Part 11. Approaches to the Synthesis of Bikaverin
Lewis, John R.,Paul, John G.
, p. 770 - 775 (2007/10/02)
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.