An Efficient Preparation of Acetyl Isoflavone Glucoside.

…, S Kataoka, S TOKUTAKE, A OBATA, K TOBE

文献索引：Izumi, Toru; Nasu, Ayako; Kataoka, Shigehiro; Tokutake, Shoichi; Obata, Akio; Tobe, Koichiro Chemical and Pharmaceutical Bulletin, 1997 , vol. 45, # 10 p. 1593 - 1595

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被引用次数: 10

摘要

Minor components of isoflavones in soybeans, 7-(6-O-acetyl-β-D-glucopyranosyl)-3-(4- hydroxyphenyl)-4H-1-benzopyran-4-one (6"-O-acetyldaidzin, 5) and 7-(6-O-acetyl-β-D- glucopyranosyl)-5-hydroxy-3-(4-hydroxyphenyl)-4H-1-benzopyran-4-one (6"-O- acetylgenistin, 6), were efficiently prepared from 6"-O-malonyldaidzin (3) or 6"-O- malonylgenistin (4) by decarboxylation in N, N-dimethylformamide at 60° C in 46% or 57% ...