Crossed Aldol Condensation Reactions in the Presence of Potassium Fluoride Supported on Activated Alumina-neutral.

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  • HONDA Tomoki
    Department of Industrial Chemistry, School of Science and Technology, Meiji University
  • IKEMOTO Jun
    Department of Industrial Chemistry, School of Science and Technology, Meiji University
  • EDA Kazuhiko
    Department of Industrial Chemistry, School of Science and Technology, Meiji University
  • KURATA Takeo
    Department of Industrial Chemistry, School of Science and Technology, Meiji University

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  • フッ化カリウムを中性アルミナに担持した触媒を用いた交差アルドール縮合反応
  • フッカ カリウム オ チュウセイ アルミナ ニ タンジシタ ショクバイ オ モ

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Abstract

Crossed aldol condensation reactions are indispensable to the formation of C-C bonds in organic synthesis.<BR>Examination was made of these reactions between benzaldehyde (1) and 2-butanone (2) using as solid base catalysts several fluoride salts supported on various inorganic solids.<BR>Potassium fluoride supported on activated alumina-neutral (KF/A2O3-neutral) was found to be a factor in the crossed aldol condensation of 1 with 2. By this catalyst, various aromatic aldehydes with ketones could be used in the synthesis chalcones and distyryl ketones.

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