Halogenation of Imidazo[1,2‐ α ]pyridines with DXDMH (X=Cl, Br and I) Using DMSO as a Solvent and an Oxidant

Abstract A simple and inexpensive methodology is reported for the conversion of imidazo[1,2‐ α ]pyridines to 3‐halo imidazo[1,2‐ α ]pyridines via oxidative halogenation using DXDMH (X=Cl, Br and I) paired with dimethyl sulfoxide, which serves as the oxidants as well as cosolvent.