Copper-catalyzed C-N bond formation via C-H functionalization: facile synthesis of multisubstituted imidazo[1,2- a ]pyridines from N -(2-pyridinyl)enaminones
An efficient, new copper-catalyzed approach to the construction of the multisubstituted imidazo[1,2- a ]pyridine skeleton from N -(2-pyridinyl)enaminones has been developed.