オキシアントラヒノン含有植物中のオキシアントロンに就いて (第5報)
イソノキ樹皮の成分
1954 年 74 巻 4 号 p. 401-404
詳細
1954 年 74 巻 4 号 p. 401-404
Fresh bark of Rhamnus crenata Miq. was consecutively extracted with benzene and chloroform, treated with potassium hydroxide in hydrogen stream, and the chloroform-soluble portion was submitted to column chromatography with calcium carbonate and zinc carbonate as the adsorption agent and petroleum benzine, chloroform containing 5-10% ethanol, methanol-saturated cyclohexane, cyclohexane, or chloroform: ethanol: benzene (19:1:5) mixture as the developer. Chrysophanic acid, chrysophanic acid anthrone, and emodin were isolated, and emodin anthrone and others were detected.
