Ligand??Free Copper??Catalyzed Arylation of Imidazole and N, N′??Carbonyldiimidazole, and Microwave??Assisted Synthesis of N??Aryl??1H??imidazoles
XD Yang, L Li, HB Zhang
Index: Yang, Xiao-Dong; Li, Liang; Zhang, Hong-Bin Helvetica Chimica Acta, 2008 , vol. 91, # 8 p. 1435 - 1442
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Citation Number: 13
Abstract
Abstract Microwave-assisted arylation of 1H-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.
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