Copper Nanopowder Catalyzed Cross-Coupling of Diaryl Disulfides with Aryl Iodides in PEG-400
Xiang-mei Wu*, Guo-bing Yan
*Department of Chemistry, College of Ecology, Lishui University, Lishui, Zhejiang 323000, P. R. of China, Email: lswxm7162163.com
X.-m. Wu, G.-b. Yan, Synlett, 2015, 26, 537-542.
An eco-friendly coupling of diaryl disulfides and aryl iodides under ligand-free conditions with copper nanopowder as catalyst and PEG-400 as solvent enables the synthesis of varous unsymmetrical diaryl in very good yields. The process is odour-free and the copper nanopowder-PEG-400 catalytic system can be directly reused for four repetitive cycles.
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diaryl sulfides, diaryl disulfides, aryl iodides, cross-coupling reaction, copper, green chemistry