ジアセチル-グアニジノ化合物-α-ナフトール系から生成するVoges-Prosakuer反応呈色物質の分離と性状

概要

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Two pigments (A and B) produced by Eggleton's method from diacetyl-guanidino com pound-α-naphthol system were separated by thin-layer chromatography over alumina or silica gel and benzene : methanol (9 : 1) or benzene : ethyl acetate : ethanol (3 : 1 : 1). A and B showed color reaction similar to that of Voges-Proskauer (V-P) reaction in alkaline medium, whereas in the acid medium, color of A was faint red, while that of B was yellow, which was the same as that of V-P reaction in acid medium. Apparent color development in the solutions of various pH except alkaline medium, seems to be dependent on the quantity of component B. B is considered as the main product of this reaction. Another pigment (C) was separated from the colored solution obtained by O'Meara's method. C is considered to be a different from A and B pigment from its absorption spectrum.
公益社団法人日本薬学会の論文
1970-11-25