Alumina and Silica Gel as Versatile Synthetic Tools In Organic Synthesis

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  • HOJO Masaru
    Department of Industrial Chemistry, Faculty of Engineering, Kobe University
  • MASUDA Ryoichi
    Department of Industrial Chemistry, Faculty of Engineering, Kobe University

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  • アルミナまたはシリカゲルを触媒とする有機合成反応　　アルミナまたはシリカゲル存在下でおこる諸反応
  • アルミナ マタハ シリカ ゲル オ ショクバイ ト スル ユウキ ゴウセイ ハ
  • アルミナまたはシリカゲル存在下でおこる諸反応

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Acid- or base-catalyzed condensations of carbonyl compounds, hydrolyses, eliminations, ring-opening reactions, rearrangements, oxidations, reductions, etc. are sometimes reported to occur during column chromatography on alumina or silica gel. These reactions are classified according to the type of the reactions and reviewed. In recent years reactions of reactive substrates (e. g., epoxides) with mild reagents (e. g., H2O, R3N) are carried out in the presence of alumina or silica gel and products distributions are found to be changed appreciably. These reactions are also included here.

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