Absorption Spectra of the lntermediates for the Oxidation of 1, 4-Naphthalenediol

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Other Title
  • 1,4-ナフタレンジオールの酸化反応過程における中間体の吸収スペクトル

Description

The oxidation of 1, 2- and 1, 4-dihydfoxyaromatic compounds proceeds readily in an alkaline solution via radical anions to give the corresponding quinones. However, the spectrophotothe aqueous alkaline solutiort was followed under ahaerobic i, conditiens in 6rder to find out intermediates, gen, erated in 1, 4-naphthale4edio 1, 4- naphthoquinone system. The absorptions appeared at higher wavelength as pH increased.., Absorptiq. n-spectra of three intermediates (Monoanien; 337 nm, Dia: ion; 351 nm, Radical. anion.; 389, 299 nm) were obserbed. ln the systeq t of p-benzqquin6ne-L-hydroquinene, absorptiQti. speetra of. s hrce species (Monoanion; 293 Diani, n; 319 Radical an in 430, 404, and 317 310 nm)were, ser ed inEthe simi1af conditions.

Journal

  • NIPPON KAGAKU KAISHI

    NIPPON KAGAKU KAISHI 1974 (8), 1517-1521, 1974-08-10

    The Chemical Society of Japan

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