Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1257417 | Chinese Chemical Letters | 2014 | 4 Pages |
Abstract
3-(Diphenylphosphino)propanoic acid (L2) has proved to be an efficient ligand for the copper-catalyzed CN coupling reactions. N-arylation of imidazoles with aryl iodides catalyzed by CuCl/L2 was smoothly carried out in DMSO at 100 °C with a yield up to 98%. N-arylation of 1H-pyrazole with aryl iodides and bromides catalyzed by Cu(OAc)2/L2 in 1,4-dioxane also gave the corresponding products with yields of 40%–98%.
Graphical abstract3-(Diphenylphosphino)propanoic acid was determined to be an efficient ligand for not only the CuCl-catalyzed N-arylation of imidazoles, but also the Cu(OAc)2-catalyzed N-arylation of 1H-pyrazole.Figure optionsDownload full-size imageDownload as PowerPoint slide
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Physical Sciences and Engineering
Chemistry
Chemistry (General)
Authors
Ya-Shuai Liu, Yan Liu, Xiao-Wei Ma, Ping Liu, Jian-Wei Xie, Bin Dai,