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

doi:10.3724/SP.J.1095.2014.30340

摘要/Abstract

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

中图分类号:

O621.3

冯翠兰, 徐海云, 刘澜涛, 王静, 刘瑛. 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[J]. 应用化学, DOI: 10.3724/SP.J.1095.2014.30340.

FENG Cuilan*, XU Haiyun, LIU Lantao, WANG Jing, LIU Ying. Catalytic Synthesis of Diaryl Ethers with Magnetically Recoverable Fe₃O₄ Nanoparticles Under Solvent-free and Ligand-free Conditions[J]. Chinese Journal of Applied Chemistry, DOI: 10.3724/SP.J.1095.2014.30340.

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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

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

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