Acta Chimica Sinica ›› 2012, Vol. 70 ›› Issue (11): 1289-1294.DOI: 10.6023/A1111283 Previous Articles     Next Articles

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MCM-41 负载席夫碱催化α,β-不饱和酮的环氧化反应研究

周广鹏, 余蕾, 惠永海, 解正峰   

  1. 新疆大学石油天然气精细化工教育部重点实验室 乌鲁木齐 830046
  • 收稿日期:2011-11-28 修回日期:2012-04-11 出版日期:2012-06-14 发布日期:2012-04-11
  • 通讯作者: 解正峰 E-mail:xiezhf72@yahoo.com.cn
  • 基金资助:

    国家自然科学基金(Nos. 20962018, 20862015, 20562011)资助项目.

Study on the Epoxidation of α,β-Unsaturated Ketones Catalyzed by MCM-41 Supported Schiff Base

Zhou Guangpeng, Yu Lei, Hui Yonghai, Xie Zhengfeng   

  1. Key Laboratory of Oil & Gas Fine Chemicals Ministry of Education, Xinjiang University, Urumqi 830046
  • Received:2011-11-28 Revised:2012-04-11 Online:2012-06-14 Published:2012-04-11
  • Supported by:

    Project supported by the National Natural Science Foundation of China (Nos. 20962018, 20862015, 20562011).

The novel mesoporous molecular sieves MCM-41 supported Schiff base was prepared by MCM-41 and Schiff base, which was synthesized by 3-chloropropyltriethoxysilane, 1,2-cyclohexanediamine with 2-phenyl-2H-1,2,3-triazole-4-carbaldehyde. The catalyst was characterized by methods of Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD). The epoxidation of α,β-unsaturated ketones catalyzed by MCM-41 supported Schiff base was studied in the presence of H2O2. The reaction conditions such as metal salts, different solvents, reaction temperature, the catalyst amount, and reaction time were investigated. It was found that the epoxidation of α,β-unsaturated ketones was easily obtained in excellent yields (up to 99%) using acetonitrile as the solvent at room temperature in short time. Especially, the heterogeneous catalyst can be reused four times without significant loss of its catalytic activity.

Key words: α,β-unsaturated ketone, epoxidation, MCM-41, Schiff base, catalysis