A new synthesis of 9-xanthenones by the reaction of 2-hydroxybenzophenones with metal salts.
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概要
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Seven 2-hydroxy-4-methoxybenzophenones were oxidized with manganese(III) acetate to give 9-xanthenones (24–65%). 2-Hydroxy-3′,4,4′,6-tetramethoxybenzophenone gave 1,3,6,7-tetramethoxy-9-xanthenone in a 5% yield. 2-Hydroxy-3′,4,4′,5-tetramethoxybenzophenone yielded 2,5-dihydroxy-3′,4,4′-trimethoxybenzophenone (9%). The oxidation of the 2-hydroxybenzophenones with lead tetraacetate also gave the 9-xanthenones, but in poor yields.
- 公益社団法人 日本化学会の論文
著者
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Kurosawa Kazu
Department Of Chemistry Faculty Of Science Kumamoto University
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Ueda Shuichi
Department Of Anatomy Kyoto Prefectural University Of Medicine
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Ueda Shuichi
Department of Chemistry, Faculty of Science, Kumamoto University
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