Abstract: The ionic liquid [(CH3)N(n-C8H17)3]2W2O11 can be applied as a catalyst in cyclohexanol oxidation. Experiments show that it has good catalytic activity on cyclohexanol oxidation with H2O2 as the oxidant. It was conducted at 65 ℃ by adding substrate (5 mmol)，catalyst (50 μmol) and H2O2 (15 mmol) in a stirred mixture in a reactor. The yield is more than 99 %. The catalyst could be recycled after simple filtering.

Key words: tungsten ionic liquid, cyclohexanol, oxidation

摘要： 该反应体系是以钨离子液体[(CH3)N(n-C8H17)3]2W2O11为催化剂，H2O2（30 %）为氧化剂，催化氧化环己醇制得环己酮。分别考察了催化剂用量、氧化剂用量以及温度变化对反应的影响。实验确定的反应最佳条件为反应温度65 ℃，环己醇用量5 mmol，催化剂用量50 μmol，H2O2用量15 mmol。在最佳条件下反应8 h，环己酮的产率可达99 %以上。反应过程无副产物，选择性好（> 99 %），体系异相催化，催化剂简单处理后可循环使用4次。

关键词: 钨离子液体, 环己醇, 氧化