title: Direct synthesis of N-H carbazoles via iridium(III)-catalyzed intramolecular C-H amination.
abstract: The iridium-catalyzed dehydrogenative cyclization of 2-aminobiphenyls proceeds smoothly in the presence of a copper cocatalyst under air as a terminal oxidant through intramolecular direct C-H amination to produce N-H carbazoles. A similar iridium/copper system can also catalyze the unprecedented dimerization reaction of 2-aminobiphenyl involving 2-fold C-H/N-H couplings.
authors.affiliation: †Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan.
authors.forename: Chiharu
authors.initials: C
authors.lastname: Suzuki
authors.affiliation: †Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan.
authors.forename: Koji
authors.initials: K
authors.lastname: Hirano
authors.affiliation: †Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan.|‡JST, ACT-C, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan.
authors.forename: Tetsuya
authors.initials: T
authors.lastname: Satoh
authors.affiliation: †Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan.
authors.forename: Masahiro
authors.initials: M
authors.lastname: Miura