内酰胺型离子液体催化环己酮氧化合成己二酸  

Oxidation of Cyclohexanone to Adipic Acid Catalyzed by Lactam-Based Ionic Liquid

作　　者：王晓丹[1,2] 吴文远[1] 涂赣峰[1] 蒋开喜[1,3] 

机构地区：[1]东北大学材料冶金学院,沈阳110004 [2]沈阳化工大学应用化学学院,沈阳110142 [3]北京矿冶研究院,北京100044

出　　处：《有机化学》2010年第12期1935-1938,共4页Chinese Journal of Organic Chemistry

基　　金：国家自然科学基金(No50574031)资助项目

摘　　要：以钨酸和己内酰胺为原料一步法合成了[CP]HWO4室温离子液体,将其用于催化环己酮氧化合成己二酸,考察了离子液体用量、配体种类、体系pH值等方面的影响.结果表明,该离子液体对于环己酮氧化合成己二酸具有良好的催化效果,在环己酮100mmol,30%双氧水44.5mL,[CP]HWO45mmol,反应初始液pH值为0.8,反应时间8h,水杨酸5mmol条件下,己二酸分离产率可达85.35%.且离子液体可重复使用.Caprolactam tungstate （[CP]HWO4） room temperature ionic liquid was synthesized with N-methylimidazolium and caprolactam by one step. Oxidation of cyclohexanone to adipic acid catalyzed by this ionic liquid was carried out. The results show that [CP]HWO4 is an excellent catalyst for the oxidation of cyclohexanone. Under the conditions that cyclohexanone is 100 mmol, 30% hydrogen peroxide is 44.5 mL, [CP]HWO4 is 5 mmol, pH of the reaction mixture is 0.8, reaction time is 8 h and salicylic acid is 5 mmol, isolated yield of adipic acid can reach 85%. The catalyst can be recycled easily with no loss of the ac-tivity.

关 键 词：室温离子液体 [CP]HWO4 环己酮 催化氧化 己二酸 

分 类 号：TQ225.146[化学工程—有机化工]