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Immobilization of Copper(II) in Organic-Inorganic Hybrid Materials: A Highly Efficient and Reusable Catalyst for the Classic Ullmann Reaction

Qiang Wu, Lei Wang*

*Department of Chemistry, Huaibei Coal Teachers College, Huaibei, Anhui 235000, P. R. of China, Email:

Q. Wu, L. Wang, Synthesis, 2008, 2007-2012.

DOI: 10.1055/s-2008-1067107


Aryl iodides, bromides and chlorides underwent a smoth homocoupling in the presence of a 3-(2-aminoethylamino)propyl-functionalized silica gel immobilized copper(II) catalyst. The homocoupled products were generated in good to excellent yields. The silica-supported copper(II) could be recovered and recycled by simple filtration.

see article for more examples

Regioselective Synthesis of 1,2,3-Triazoles by Use of a Silica-Supported Copper(I) Catalyst

Miaoa, L. Wang, Synthesis, 2008, 363-368.

Key Words

Ullmann Reaction, biaryls, homocoupling, aryl halides, immobilization, organic-inorganic hybrid materials

ID: J66-Y2008-1750