The C-N cross-coupling of amides and imidazoles with aryl
iodides is described using CuI in tetrabutylammonium bromide (TBAB)
under ligand-free conditions. The reaction is simple, general, and
efficient affording the C-N cross-coupled products in shorter
time and in high yield.
N-arylation - amides - imidazoles - copper
iodide - TBAB