NMR Study on the Reaction of Cresols with Formaldehyde Catalyzed by Ammonia

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  • Hotta Hisashi
    The Composite Research and Development Center of Tokyo Seikan and Tokyo Kohan Companies
  • Hayashi Toshihiko
    The Composite Research and Development Center of Tokyo Seikan and Tokyo Kohan Companies
  • Mori Tatsuo
    The Composite Research and Development Center of Tokyo Seikan and Tokyo Kohan Companies

Bibliographic Information

Other Title
  • アンモニア触媒下におけるクレゾール類とホルムアルデヒドの反応のNMRによる研究

Description

The reaction of o- or p-cresol with formaldehyde in the presence of ammoniacal catalyst was followed by NMR. spectroscopy.<BR>It was found that at an early stage of each reaction tribenzylamine was formed (see Figs.1and 2)followed by the formation dibenzylamine and oxazine compound.<BR>The molecular weight of product calculated from NMR data was ab6ut 250 at the iRitiql stage of the reaction; then with the lapse of time it decreased gradually and again increased. nally. Cresol was more reactive than o-cresol.<BR>As for the reactivity of e- and p-position of o-cresol in the reaction with ammonia and formaldehyde, it may be inferred from the data of IR and NMR spectra that the former was more reactive than the latter at the intitial stage of the reaction.

Journal

  • NIPPON KAGAKU KAISHI

    NIPPON KAGAKU KAISHI 1974 (6), 1138-1142, 1974-06-10

    The Chemical Society of Japan

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