title: Selective C-H trifluoromethylation of benzimidazoles through photoredox catalysis.
abstract: The protocol presented here is a new strategy for visible light induced C-H trifluoromethylation at C4of benzimidazoles using Togni's reagent in the presence of fac-Ir(ppy)3. Its advantages are its operational simplicity, mild reaction conditions, low catalyst loading and wide substrate scope in which electron-withdrawing, electron-donating groups and different protecting groups are tolerated.
authors.affiliation: MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, State Key Laboratory of Urban Water Resource and Environment, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150080, China. xyyang@hit.edu.cn xiawj@hit.edu.cn.
authors.forename: Guo-Lin
authors.initials: GL
authors.lastname: Gao
authors.affiliation: MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, State Key Laboratory of Urban Water Resource and Environment, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150080, China. xyyang@hit.edu.cn xiawj@hit.edu.cn.
authors.forename: Chao
authors.initials: C
authors.lastname: Yang
authors.affiliation: MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, State Key Laboratory of Urban Water Resource and Environment, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150080, China. xyyang@hit.edu.cn xiawj@hit.edu.cn.
authors.forename: Wujiong
authors.initials: W
authors.lastname: Xia