Chemical shifts of hydroxyl protons of various phenols in acetone-chromic anhydride systems

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  • 無水クロム酸によるフェノール性水酸基プロトンの化学シフト
  • ムスイ クロムサン ニ ヨル フェノールセイ スイサンキ プロトン ノ カガク シフト

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Description

Various mixtures of phenols dissolved in acetone and chromic anhydride were found to give a well resolved NMR spectra of hydroxyl protons for each components.<BR>The absorptions of these hydroxyl protons appear in the region of 7.70 to 8.10 ppm and are free from the interference due to aromatic proton adsorption.<BR>The separation of hydroxyl protons of each isomer is over 0.50 ppm for nitrophenols, 0.37 ppm for naphthols, 0.03 ppm for cresols and xylenols and is sufficient for the determination of phenol mixtures.

Journal

  • BUNSEKI KAGAKU

    BUNSEKI KAGAKU 22 (5), 606-608, 1973

    The Japan Society for Analytical Chemistry

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