ビタミンA酸のSbCl_3反応生成物

概要

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Vitamin A acid, when treated with antimony trichloride reagent in chloroform solution, formed a red-violet color, having an absorption maximum at 573mμ. By being allowed to stand the maximum absorption at 573 mμ slowly disappeared, and then that at 470 mμ developed. When the absorption spectrum at 573 mμ reached its maximum, this reaction was broken up with water. Then its color disappeared and yellow fluorescent substance (I) was formed. When the absorption spectrum at 470 mμ reached its maximum, the blue fluorescent substance (II) was formed by the same procedure. It was revealed by thin layer chromatography, absorption spectrum, antimony trichloride reaction and fluorescence color, that the substance I is changed to the substance II by the treatment with antimony trichloride. By treatment with anhydrous alcoholic hydrochloric acid or acid earth, the substance I could be also obtained, but the substance II could not.
日本ビタミン学会の論文
1965-09-25