Oxazolidin-2-one as Efficient Ligand for the Copper-Catalyzed N-arylation of Pyrrole, Imidazole and Indole

Oxazolidin-2-one was found to be a facile ligand for the N-arylation of pyrrole, indole, and imidazole with aryl and heteroaryl iodides, bromides, and chlorides by applying CuI as catalyst. The easy preparation, commercial availability, lower molecular weight, and broad substrate applicability, as well as substituent compatibility of this catalysis system render oxazolidin-2-one great advantages over the Cu-catalyzed methods that have already been utilized in a number of applications.