Cu2O/Nano-CuFe2O4 as a Magnetically Recoverable Catalyst for Ligand-Free Synthesis of Imidazo[1,2-a] Pyridines and 3-Aroylimidazo[1,2-a] Pyridines

Cu2O/nano-CuFe2O4 was found as an efficient and magnetically separable heterogeneous catalyst for the solvent-free synthesis of imidazo[1,2-a] pyridine derivatives. This nano-magnetic composite is also extended as a well-run and recoverable catalyst for the synthesis of 3-aroylimidazo[1,2-a] pyridine derivatives using air as the green oxidant under ligand and additive-free conditions. Readily available, inexpensive starting materials, simple...