-甲基咪唑硫酸氢盐催化酮肟的 Beckmann 重排。
Beckmann Rearrangement of Ketoxime Catalyzed by -methyl-imidazolium Hydrosulfate.
机构信息
Xingzhi College, Zhejiang Normal University, Jinhua 321004, China.
出版信息
Molecules. 2018 Jul 18;23(7):1764. doi: 10.3390/molecules23071764.
Abstract
Beckmann rearrangement of ketoxime catalyzed by acidic ionic liquid--methyl-imidazolium hydrosulfate was studied. Rearrangement of benzophenone oxime gave the desirable product with 45% yield at 90 °C. When co-catalyst P₂O₅ was added, the yield could be improved to 91%. The catalyst could be reused three cycles with the same efficiency. Finally, reactions of other ketoximes were also investigated.
摘要
研究了酸性离子液体-甲基咪唑硫酸氢盐催化的酮肟的Beckmann 重排反应。在 90°C 下，苯甲酮肟的重排得到了理想的产物，产率为 45%。当加入助催化剂 P₂O₅时，产率可以提高到 91%。催化剂可以重复使用三批，效率相同。最后，还研究了其他酮肟的反应。
Zotero 插件