Cu2O/Cs2CO3/DMF: An efficient catalytic system for N-arylation of imidazole with aryl halides under ligand-free conditions
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DOI: 10.1080/00397911.2017.1353633
Abstract: ABSTRACT A ligand-free Cu-catalyzed protocol for the Ullmann-type N-arylation of N-containing heterocycles with aryl or heteroaryl iodides and bromides has been established. A broad range of functional groups is well tolerated on both of the… read more here.
Keywords: ligand free; dmf efficient; cs2co3 dmf; efficient catalytic ... See more keywords