牛尿の化学的研究 : (第2報)牛尿より得たーフェノール性化合物の構造に就て

概要

論文の詳細を見る
The previous paper dealt with isolating a phenolic compound, C15H14O3 m. p. 188_??_189 [α]22D-20, from cows urine from spring to autumn, while this paper has to do with the determination of the chemical structure of that phenolic compound. Resorcin and p-oxybenzoic acid were obtained by alkali-fusion of the phenolic compound at 300_??_320°. Dimethylether, C17H18O3, m. p. 88_??_89, [α]22D-17.4, was oxidized at room temperature to anisic acid by the excess of CrO3 and to a ketone, C17H16O4, m. p. 121_??_122°., by 3.2 moles of Cr03. Diacetate, C19H18O5 m. p. 120_??_122° [α]22D-19.3, was also oxidized to a ketone, C19H16O6, m. p. 155_??_156°. These ketone groups were proved to be conjugated with the phenyl groups by UV-absorption spectrometry. This phenolic compound seemed to be 7-oxy-3 (4-oxyphenyl) chroman and the latter was synthesized by Marrians method. The identity of the two compounds was shown by the mixed melting point and infra-red absorption spectra. This phenolic compound is identical with “Equol” isolated from mares urine by Marrian et al.
社団法人日本農芸化学会の論文