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Chin. J. Org. Chem. ›› 2010, Vol. 30 ›› Issue (12): 1935-1938. Previous Articles     Next Articles

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内酰胺型离子液体催化环己酮氧化合成己二酸

王晓丹1,2，吴文远*,1，涂赣峰1，蒋开喜1,3   

  1. (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)
  • 收稿日期:2009-12-18 修回日期:2010-05-17 发布日期:2010-07-01
  • 通讯作者: 吴文远 E-mail:wwy030501@yahoo.com.cn
  • 基金资助:

    国家自然科学基金

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

Wang Xiaodan1,2 Wu Wenyuan*,1 Tu Gan-feng1 Jiang Kaixi1,3   

  1. (1 School of Material and Metallurgy, Northeastern University, Shenyang 110004)
    (2 College of Applied Chemistry, Shenyang University of Chemical Technol-ogy, Shenyang 110142)
    (3 Beijing General Research Institute of Mining and Metal-lurgy, Beijing 100044)
  • Received:2009-12-18 Revised:2010-05-17 Published:2010-07-01

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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% hy-drogen 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 activity.

Key words: room temperature ionic liquid, [CP]HWO4, cyclohexanone, catalytic oxidation, adipic acid