中华医学超声杂志

应用化学 ›› 2010, Vol. 27 ›› Issue (01): 69-73.

• 研究论文 • 上一篇    下一篇

MCM-41负载钴催化H2O2氧化四氢萘合成α-四氢萘酮

马永平1,2,赵革建1,陶辉旺1,王伟1,李斌1,王家强1*   

  1. (1.云南大学应用化学系,教育部自然资源药物化学重点实验室 昆明 650091;2.昆明理工大学理学院 昆明)
  • 收稿日期:2009-01-03 修回日期:2009-03-02 出版日期:2010-01-10 发布日期:2010-01-10
  • 通讯作者: 王家强,男,教授，博士生导师; E-mail:jqwang@ynu.edu.cn; 研究方向：选择性催化氧化,光催化
  • 基金资助:
    “九七三”前期计划课题（2008CB617514）云南省自然科学基金项目(2007B018M和2008CD065)云南省教育厅基金（K1050534）昆明理工大学校青年基金(2007-078)昆明理工大学分析测试基金(2008-080)资助项目

Catalytic oxidation of tetralin to α-tetralone with hydrogen peroxide over cobalt loaded MCM-41

MA Yong-Ping1,2, ZHAO Ge-Jian1, TAO Hui-Wang1, WANG Wei1, LI Bin1, WANG Jia-Qiang1*   

  1. (1.Department of Applied Chemistry,Key Laboratory of Medicinal Chemistry for
    Natural Resource,MOE,Yunnan University,Kunming 650091;
    2.Faculty of Science,Kunming University of Science and Technology,Kunming)
  • Received:2009-01-03 Revised:2009-03-02 Published:2010-01-10 Online:2010-01-10
  • Contact: Jiaqiang Wang

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摘要：

比较了醋酸溶液中过渡金属(Fe, Co, Ni, Ce, Cu, La, Zr或Cr)掺杂MCM-41催化过氧化氢氧化四氢萘合成α-四氢萘酮的转化率和选择性, 发现其中Co/MCM-41的催化活性最好. 探讨了Co/MCM-41作催化剂时反应温度、反应时间、催化剂用量等对四氢萘氧化的转化率和形成四氢萘酮选择性的影响；确定了较优的反应条件：m(四氢萘)：m(催化剂) = 12.5：1；反应温度 T=383 K，反应时间8 h。四氢萘的转化率达94.7%, α-四氢萘酮的选择性达到70.3%。在反应体系中, Co/MCM-41是一种非均相催化剂。 催化剂 Co/MCM-41可回收重复使用3次, 催化活性基本不变。

关键词: Co/MCM-41, 四氢萘的氧化, α-四氢萘酮

Abstract:

The conversions and selectivities of the oxidation of tetralin to α-tetralone in acetic acid with H2O2 as oxidant over transition metals (Fe, Co, Ni, Ce, Cu, La, Zr and Cr) loaded MCM-41 were compared.? An excellent conversion of tetralin and high selectivity of α-tetralone were also obtained when Co/MCM-41 was used.? The effects of reaction temperature, reaction time and catalyst concentration on the catalyst performance were examined in order to optimize the conversion of tetralin and selectivity of α-tetralone. A selectivity of 70.3% of tetralin?to α-tetralone was obtained at 94.7% conversion of tetralin under the optimum reaction condition: m(tetralin)：m(catalyst)=12.5:1；reaction temperature = 383 K, reaction time = 8 h. Co/MCM-41 acted as a heterogeneous catalyst in the reaction system and it can be recycled three times without losing its activity to a greater extent.

Key words: cobalt loaded MCM-41, oxidation of the tetralin, α-tetralone

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