title: Metal-Free Thiocyanation of Imidazoheterocycles through Visible Light Photoredox Catalysis.
abstract: A visible light mediated, metal-free process for the thiocyanation of imidazoheterocycles has been developed using eosin Y as a photoredox catalyst under ambient air at room temperature. A library of 3-(thiocyanato)imidazo[1,2-a]pyridines with broad functionalities have been synthesized in high yields. This methodology is also applicable for the selenocyanation of imidazo[1,2-a]pyridine.
authors.affiliation: Department of Chemistry, Visva-Bharati (A Central University), Santiniketan 731235, India.
authors.forename: Shubhanjan
authors.initials: S
authors.lastname: Mitra
authors.affiliation: Department of Chemistry, Visva-Bharati (A Central University), Santiniketan 731235, India.
authors.forename: Monoranjan
authors.initials: M
authors.lastname: Ghosh
authors.affiliation: Department of Chemistry, Visva-Bharati (A Central University), Santiniketan 731235, India.
authors.forename: Subhajit
authors.initials: S
authors.lastname: Mishra
authors.affiliation: Department of Chemistry, Visva-Bharati (A Central University), Santiniketan 731235, India.
authors.forename: Alakananda
authors.initials: A
authors.lastname: Hajra