著者

亀沢 誠 小原 和子 橘 芳純

出版者

公益社団法人 日本化学会

雑誌

日本化学会誌 (ISSN:03694577)

巻号頁・発行日

vol.1985, no.1, pp.138-140, 1985

被引用文献数

2

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It has previously been reported that 7, 7'-dihydroxy-4, 4'-dimethyl-3, 4-dihydro-4, 6'-bicoumarin C 4 J was obtained from the reaction of resorcinol [1] J with methyl acetoacetate [2]. The reaction of [5], diacetate of [4] with aluminum chloride has no w been studied.<BR>The products were found to be 2, 4-diacetylresorcinol [6], 4, 6-diacetylresorcinol [7], 2, 4, 6-triacetylresorcinol [8] and 4, 6-dimethyl-2 H, 8 H-benzo [1, 2-b : 5, 4-b'] dipyran-2, 8-dione mainly on the spectroscopic evidence. Expected Fries reaction products of [5] [9] were not obtained.<BR>The plausible mechanism for the formation of [6]&sim;[9] is discussed briefly (Scheme 3).