FeBr3-catalysed synthesis of 3-aroylimidazo[1,2-a]pyridine and 3,3′-(arylmethylene)bis(2-phenylimidazo[1,2-a]pyridines) derivatives from 2-arylimidazo[1,2-a]pyridines and aromatic aldehydes: an investigation about mechanistic insights

FeBr 3 -catalysed synthesis of either 3-aroylimidazo[1,2- a ]pyridines or 3,3′-(arylmethylene)bis(2-phenylimidazo[1,2- a ]pyridines) derivatives from the same starting materials such as 2-arylimidazo[1,2- a ]pyridines and aromatic aldehydes were reported.