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Paper | Regular issue | Vol 34, No. 9, 1992, pp.1835-1845
Published online, 1st January, 1970
DOI: 10.3987/COM-92-6113
Naturally Occurring Naphthazarins. Synthesis of (±)-Ventiloquinones C, D, E and G

Daniel Bergeron and Paul Brassard*

*Département de Chimie, Université Laval, Québec(Québec), Canada G1K 7P4

Abstract

The title compounds have been synthesized, some for the first time, from previously obtained (±)-1,3-dimethyl-10-hydroxybenzisochroman-6,9-quinones, by oxidation of the corresponding hydroquinone dimethyl ethers using ceric ammonium nitrate or better [bis(trifluoroacetoxy)iodo]benzene and, as required, selective demethylation.