title: Copper-catalyzed C-H ethoxycarbonyldifluoromethylation of imidazoheterocycles.
abstract: A regioselective copper-catalyzed ethoxycarbonyl-difluoromethylation of imidazo[1,2-a]pyridines has been developed through sp(2) C-H bond functionalization with BrCF2CO2Et under ambient air. A series of ethoxycarbonyldifluoromethylated imidazo[1,2-a]pyridines with broad functionalities have been synthesized. This methodology is also applicable to imidazo[2,1-b]thiazole and benzo[d]imidazo[2,1-b]thiazole.
authors.affiliation: Department of Chemistry, Visva-Bharati (A Central University), Santiniketan, 731235, West Bengal, India. alakananda.hajra@visva-bharati.ac.in.
authors.forename: Subhajit
authors.initials: S
authors.lastname: Mishra
authors.forename: Pallab
authors.initials: P
authors.lastname: Mondal
authors.forename: Monoranjan
authors.initials: M
authors.lastname: Ghosh
authors.forename: Susmita
authors.initials: S
authors.lastname: Mondal
authors.forename: Alakananda
authors.initials: A
authors.lastname: Hajra