Beckmann Rearrangement of Cyclohexanoneoxime by Solid Acid Catalyst

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  • 固体酸触媒によるシクロヘキサノンオキシムのベックマン転位
  • コタイ サン ショクバイ ニ ヨル シクロヘキサノンオキシム ノ ベックマン テンイ

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When 10 g cyclohexanone oxime dissolved in 4080 ml xylene was heated at 90°C for 2 hr under 100200 rpm stirring over 2040 g silica-alumina-phosphoric acid, ε-caprolactam was obtained in a quantitative yield. Other solid acid catalysts, such as silica-alumina, kieselguhr-phosphoric acid, and boron-phosphoric acid, were less effective and the yields ranged from 10 to 30%.

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