Carboxylation of Active Methylene Compounds with Base-Magnesium Chloride-Carbon Dioxide Mixtures

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  • MATSUMURA Noboru
    Department of Applied Chemistry, College of Engineering, University of Osaka Prefecture
  • YAGYU Yoshio
    Department of Applied Chemistry, College of Engineering, University of Osaka Prefecture
  • IMOTO Eiji
    Department of Applied Chemistry, College of Engineering, University of Osaka Prefecture

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Other Title
  • 塩基-塩化マグネシウムー二酸化炭素系による活性メチレン化合物のカルボキシル化
  • 塩基‐塩化マグネシウム‐二酸化炭素系による活性メチレン化合物のカルボキシル化

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Description

Various binary mixtures consisting of a base and magnesium chloride promote the carboxylation of various kinds of active methylene compounds with carbon dioxide. Monocarboxylic acid is obtained as a only product in excellent yield. The reactions are promoted by such a strong tertiary amine as triethylamine or triethylenediamine, but not by such a weak tertiary amine as pyridine or N, N-dimethylaniline. Primary or secondary amines are not effective. Among the chlorides of uni-, bi-, and tri-valent metals, magnesium chloride is the most effective substance to promote the carboxylation of indene or acetophenone.

Journal

  • NIPPON KAGAKU KAISHI

    NIPPON KAGAKU KAISHI 1977 (9), 1344-1348, 1977-09-10

    The Chemical Society of Japan

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