Ligand-Free Copper-Catalyzed Arylation o
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Xiao-Dong Yang; Liang Li; Hong-Bin Zhang
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Article
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2008
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John Wiley and Sons
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German
⚖ 185 KB
👁 1 views
## Abstract Microwave‐assisted arylation of 1__H__‐imidazoles and __N,N__′‐carbonyldiimidazole under ligand‐free copper‐mediated conditions in tetraethyl orthosilicate is reported. Valuable evidence for understanding of the Cu‐catalyzed mechanism of the __Ullmann__ reaction is also presented.