The reductive deacylation of the knoevenagel condensates by the use of the tetracarbonylhydridoferrate(0) anion. A new synthetic route of ketones from aldehydes.

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概要

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• The Knoevenagel condensates prepared from 2,4-pentanedione with aldehydes were allowed to react with the tetracarbonylhydridoferrate(0) anion in ethanol to give reductively deacylated monoketones in high yields. However, the exclusive reduction of the α,β-unsaturated double bond of the same condensates was encountered when the reaction was carried out in such a solvent as tetrahydrofuran and acetone. The Knoevenagel condensates, derived from the reaction of ethyl acetoacetate and/or ethyl benzoylacetate with aldehydes, were simply reduced even in ethanol. The reaction mechanism is briefly discussed.

• 公益社団法人 日本化学会の論文

著者

• Mitsudo Take-aki

  Department Of Energy And Hydrocarbon Chemistry Graduate School Of Engineering Kyoto University

• Yamashita Masakazu

  Department Of Applied Chemistry Doshisha University

• Watanabe Yoshihisa

  Department Of Basic Geriatrics Graduate School Of Medical Science Kyoto Prefectural University Of Medicine

• TAKEGAMI Yoshinobu

  Department of Hydrocarbon Chemistry, Faculty of Engineering, Kyoto University

• Takegami Yoshinobu

  Department of Fuel Chemistry Faculty of Engineering Kyoto University

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