title: Switching the regioselectivity in the copper-catalyzed synthesis of iodoimidazo[1,2-a]pyridines.
abstract: A unique copper-catalyzed binucleophilic switching of 2-aminopyridine has been developed for the regioselective synthesis of 2- and 3-iodoimidazo[1,2-a]pyridines using alkenes/alkynes as coupling partners in the presence of molecular iodine under aerobic reaction conditions. This method was also applied to the synthesis of 2-iodo-3-phenylbenzo[d]imidazo[2,1-b]thiazoles. This protocol offers an easy route towards the synthesis of 2,3-diarylimidazo[1,2-a]pyridines.
authors.affiliation: Department of Chemistry, Visva-Bharati (A Central University), Santiniketan, 731235, West Bengal, India. alakananda.hajra@visva-bharati.ac.in.
authors.forename: Sadhanendu
authors.initials: S
authors.lastname: Samanta
authors.forename: Sourav
authors.initials: S
authors.lastname: Jana
authors.forename: Susmita
authors.initials: S
authors.lastname: Mondal
authors.forename: Kamarul
authors.initials: K
authors.lastname: Monir
authors.forename: Swapan K
authors.initials: SK
authors.lastname: Chandra
authors.forename: Alakananda
authors.initials: A
authors.lastname: Hajra