英语翻译
New (S)-pyrrolidinylmethylimidazole ligands (4a-c) have been readily synthesized in a straightforward
fashion from least expensive starting materials in short steps in high yields.Relatively mild and highly
efficient CuI-catalyzed N-arylation procedures for imidazoles with aryl and heteroaryl bromides or chlorides
have been developed in the presence of 4a and Cs2CO3.It is important to note that the protocol could
tolerate functional groups such as ester,nitrile,nitro,ketone,free hydroxyl,and free primary amine on
the aryl halide.The protocol could also be applicable to other ð-electron-rich nitrogen heterocycles (pyrrole,
pyrazole,indole,benzimidazole,and triazole),affording the N-arylazoles in good to excellent yields.