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Note | Regular issue | Vol 57, No. 10, 2002, pp.1915-1918
Published online, 1st January, 1970
DOI: 10.3987/COM-02-9557
A New Route to Benzo[b]xanthene-6,11,12-trione Derivatives Based on the Photoinduced o-Hydroxybenzoylation of 1,4-Naphthoquinone

Kazuhiro Kobayashi,* Akihiro Matsunaga, Masaaki Mano, Osamu Morikawa, and Hisatoshi Konishi

*Department of Materials Science, Faculty of Engineering, Tottori University, 4-101 Koyama-minami, Tottori 680-8552, Japan


A two-step procedure for the synthesis of the title xanthenequinone derivatives is described. The procedure involves the photoinduced acylation of 1,4- naphthoquinone with 2-hydroxybenzaldehydes, followed by treatment with Ag2O.