title: A Visible-Light-Induced α-H Chlorination of Alkylarenes with Inorganic Chloride under NanoAg@AgCl.
abstract: An efficient, photocatalytic chlorination of alkylarene α-H groups using NaCl/HCl as a chlorine source has been developed, which involves a radical mechanism under visible-light (including sunlight) conditions. A chlorine radical is proposed to be formed by an electron transfer from chloride ion to O2 in air through the bandgap hole of the semiconductor AgCl. The chlorination protocol is characterized by its use of natural sunlight or other visible light, mild conditions, cheap source of chlorine, green solvent, and high selectivity. The yield of benzylchloride is 95% with a toluene conversion as high as 40%, which rivals traditional chlorination methods.
authors.affiliation: State Key Laboratory Breeding Base, Hebei Province, Key Laboratory of Molecular Chemistry for Drugs, Hebei University of Science & Technology, Shijiazhuang 050018 (P. R. China), Fax: (+86) 311-88632002. chlsx@hebust.edu.cn.
authors.forename: Shouxin
authors.initials: S
authors.lastname: Liu
authors.affiliation: State Key Laboratory Breeding Base, Hebei Province, Key Laboratory of Molecular Chemistry for Drugs, Hebei University of Science & Technology, Shijiazhuang 050018 (P. R. China), Fax: (+86) 311-88632002.
authors.forename: Qi
authors.initials: Q
authors.lastname: Zhang
authors.affiliation: State Key Laboratory Breeding Base, Hebei Province, Key Laboratory of Molecular Chemistry for Drugs, Hebei University of Science & Technology, Shijiazhuang 050018 (P. R. China), Fax: (+86) 311-88632002.
authors.forename: Huiying
authors.initials: H
authors.lastname: Li
authors.affiliation: State Key Laboratory Breeding Base, Hebei Province, Key Laboratory of Molecular Chemistry for Drugs, Hebei University of Science & Technology, Shijiazhuang 050018 (P. R. China), Fax: (+86) 311-88632002.
authors.forename: Yihua
authors.initials: Y
authors.lastname: Yang
authors.affiliation: State Key Laboratory Breeding Base, Hebei Province, Key Laboratory of Molecular Chemistry for Drugs, Hebei University of Science & Technology, Shijiazhuang 050018 (P. R. China), Fax: (+86) 311-88632002.
authors.forename: Xia
authors.initials: X
authors.lastname: Tian
authors.affiliation: Centre for Sustainable Chemical Processes, Department of Chemistry, Science Laboratories, Durham University, South Road Durham, DH1 3LE (UK), Fax: (+44) 191-384-4737. andy.whiting@durham.ac.uk.
authors.forename: Andrew
authors.initials: A
authors.lastname: Whiting
keywords: NaCl/HCl; alkylarenes; chlorination; nano-Ag; photocatalyst