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: leiwanghbcnc.edu.cn
Q. Wu, L. Wang, Synthesis, 2008, 2007-2012.
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.
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Miaoa, L. Wang, Synthesis, 2008, 363-368.