Extractives from Guttiferae. Part XVI. Biogenetic-type synthesis of xanthones from their benzophenone precursors
- 1 January 1970
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society C: Organic
- No. 2,p. 392-398
- https://doi.org/10.1039/j39700000392
Abstract
A general synthesis of polyhydroxybenzophenones is described. 2,3′,4′,6-Tetrahydroxy- 2,2′,3′,6-tetrahydroxy-, and 2,3,3′,4′,6-pentahydroxybenzophenones were prepared and oxidised to 1,6,7-trihydroxy-, 1,2,8-trihydroxy-, and 1,2,6,7-(or 1,4,6,7-) tetrahydroxyxanthones, respectively, by oxidative coupling.Keywords
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