应用化学

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易磁分离磁性纳米Fe3O4在无溶剂和无配体条件下催化合成二芳醚

冯翠兰*,徐海云,刘澜涛,王静,刘瑛   

  1. (商丘师范学院化学化工学院 商丘 476000)
  • 收稿日期:2013-07-08 修回日期:2013-09-18 出版日期:2014-05-10 发布日期:2014-05-10
  • 通讯作者: 冯翠兰,副教授; Tel/Fax:0370-2595072; E-mail:fengcuilanfan@163.com; 研究方向:绿色有机催化反应
  • 基金资助:
    国家自然科学基金(201102087)河南省科技厅科技攻关项目(112102210477)和河南省青年骨干教师(2011GGJS-157)资助

Catalytic Synthesis of Diaryl Ethers with Magnetically Recoverable Fe3O4 Nanoparticles Under Solvent-free and Ligand-free Conditions

FENG Cuilan*, XU Haiyun, LIU Lantao, WANG Jing, LIU Ying   

  1. (College of Chemistry and Chemical Engineering,Shangqiu Normal University,Shangqiu 476000,China)
  • Received:2013-07-08 Revised:2013-09-18 Published:2014-05-10 Online:2014-05-10
  • Contact: FENG

摘要: 以未经任何修饰的磁性纳米Fe3O4为催化剂,在无溶剂和配体条件下催化卤代芳烃与苯酚间的C—O键交叉偶联反应。 在130 ℃、48 h、Fe3O4摩尔分数为7%的优化反应条件下,二芳醚的产率达到94.7%。 催化剂经磁分离可方便的回收,且连续循环使用4次,其催化活性无明显降低。

关键词: 交叉偶联反应, 磁性纳米Fe3O4粒子, 二芳醚, 芳基化, 可循环

Abstract: Magnetite nanoparticles as efficient catalyst for C—O cross-coupling reaction of aryl bromide with phenol under solvent-free and ligand-free conditions were described. Under the optimized conditions:130 ℃, 48 h and 7% molar fraction of Fe3O4, the yield of diaryl ether reaches up to 94.7%. The separated magnetite nanoparticles catalyst can be recycled for 4 runs in the C—O cross-coupling reaction without significantly loss of catalytic activity.

Key words: cross-coupling, magnetic Fe3O4 nanoparticles, diaryl ether, arylation, recyclability

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