Chemical studies on the red sweat of the Hippopotamus

Kimiko Hashimoto, Yoko Saikawa, Masaya Nakata

研究成果: Article査読

1 被引用数 (Scopus)

抄録

Hippopotamus produces colorless sweat over its entire body. The color of the sweat turns red within a few minutes and then becomes brown during a few hours by producing polymers. We isolated the unstable red and orange pigments, called hipposudoric acid and norhipposudoric acid, respectively, responsible to the red coloration of the sweat. Syntheses of these pigments were performed using the Pschorr reaction for the formation of the fluorenone core and the oxidation in the last step producing the unstable diquinone as the key steps. The tautomeric structures of the common chromophore of these pigments in a protic solvent and in an aprotic solvent were also discussed.

本文言語English
ページ(範囲)1251-1260
ページ数10
ジャーナルYuki Gosei Kagaku Kyokaishi/Journal of Synthetic Organic Chemistry
64
12
DOI
出版ステータスPublished - 2006 12
外部発表はい

ASJC Scopus subject areas

  • 有機化学

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