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: leiwang
hbcnc.edu.cn
Q. Wu, L. Wang, Synthesis, 2008, 2007-2012.
DOI: 10.1055/s-2008-1067107
Abstract
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
