Nano-CuO-Catalyzed Ullmann Coupling of Phenols with Aryl Halides under Ligand-Free Conditions

被引：103

作者：

Zhang, Jintang ^{[1
,2
]}

Zhang, Zuhui ^{[1
,2
]}

Wang, Ye ^{[1
,2
]}

Zheng, Xiaoqi ^{[1
,2
]}

Wang, Zhiyong ^{[1
,2
]}

机构：

[1] Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Joint Lab Green Synthet Chem, Hefei 230026, Anhui, Peoples R China

[2] Univ Sci & Technol China, Dept Chem, Hefei 230026, Anhui, Peoples R China

来源：

EUROPEAN JOURNAL OF ORGANIC CHEMISTRY | 2008年 / 2008卷 / 30期

关键词：

Nanostructures; Copper; Ligand-free conditions; Heterogeneous catalysis; Arylation; Catalyst recycling;

D O I：

10.1002/ejoc.200800637

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Nano copper oxide has been found to be a highly efficient and reusable catalyst for the C-O cross-coupling of phenols with aryl halides under Ligand-free conditions. With DMSO as solvent, Cs2CO3 and KOH are suitable bases for the cross-coupling reactions with phenyl iodides and bromides, respectively, Diaryl ethers with different substituted groups can be synthesized in moderate-to-good yields. The catalyst can be recycled at least five times without obvious loss in catalytic activity. ((C) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008)

引用

收藏

页码：5112 / 5116

页数：5

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