Beckmann rearrangement of cyclohexanone oxime to ε-caprolactam catalyzed by sulfonic acid resin in DMSO

Beckmann rearrangement of cyclohexanone oxime to ε-caprolactam catalyzed by sulfonic acid resin in DMSO
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DMSO 中磺酸树脂催化环己酮肟贝克曼重排生成ε-己内酰胺

DOI:
10.1016/j.catcom.2008.01.011
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发表时间:
2008-03
影响因子:
3.7
通讯作者:
--
中科院分区:
化学3区
文献类型:
--
作者:

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在二甲基亚砜(DMSO)中的固体磺酸树脂上,环己酮肟催化液相贝克曼重排生成ε-己内酰胺已成功进行。考察了溶剂、催化剂、反应温度和反应时间对环己酮肟液相重排的影响。结果表明,在最佳反应条件下,肟转化率可达100%,ε-己内酰胺选择性为97.9%。该催化体系对环境无害,易于分离,并且催化剂可以方便地回收循环使用。
The catalytic liquid-phase Beckmann rearrangement of cyclohexanone oxime to ε-caprolactam over solid sulfonic acid resin in dimethyl sulfoxide (DMSO) has been successfully performed. The influences of solvent, catalyst, reaction temperature and reaction time on the rearrangement of cyclohexanone oxime in the liquid-phase were examined. The results indicate that conversion of oxime can reach 100% with 97.9% of selectivity to ε-caprolactam under optimal reaction conditions. This catalytic system involved is environmentally harmless, easily separate, and the catalyst can be conveniently recovered for recycled use.
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