NaNO2/I2-Mediated Regioselective Synthesis of Nitrosoimidazoheterocycles from Acetophenones by a Domino Process
A regioselective synthesis of nitrosoimidazoheterocycles from the reaction of 2-aminopyridines and acetophenones in the presence of NaNO2and I2is described. The reaction is suggested to proceed by a domino process involving sequentia
Influence of the 2-aryl group on the ipso electrophilic substitution process of 2-arylimidazo[1,2-a]pyridines
A systematic study of electrophilic substitution reactions of 3-nitroso-2-arylimidazo[1,2-a]pyridine confirmed that the nitroso group may be ipso-substituted by bromine (NBS in DMF) and that bromine in turn may be substituted by the nitroso group. Electro