Synthesis of 3-Alkyl-2-cyclopenten-2-ol-1-ones

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タイトル別名
  • Synthesis of 3 Alkyl 2 cyclopenten 2 ol

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説明

A convenient synthesis of 3-methyl-2-cyclopenten-2-ol-1-one (IIIa), a constituent of coffee aroma and maple flavor, is described. Condensation of diethyl glutarate with diethyl oxalate in N, N-dimethylformamide gave diketodiester I ; methylation in methyl ethyl ketone or in acetonitrile in the presence of potassium carbonate produced doubly methylated compound IIa which was hydrolyzed and decarboxylated to afford IIIa by refluxing with concentrated hydrochloric acid in acetic acid. Other allied compounds were also synthesized.

収録刊行物

  • 油化学

    油化学 25 (6), 326-328, 1976

    公益社団法人 日本油化学会

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