title: Enantioselective intramolecular benzylic C-H bond amination: efficient synthesis of optically active benzosultams.
abstract: 'Salen' along: the iridium(III)-salen complex 1 efficiently catalyzes the title reaction of 2-ethylbenzenesulfonyl azides to give five-membered sultams with high enantioselectivity. Other 2-alkyl-substitued substrates lead to five- and six-membered sultams with high enantioselectivity; the regioselectivity depends upon the substrate and the catalyst used. EDG=electron-donating group.
authors.affiliation: Department of Chemistry, Faculty of Science Graduate School, Kyushu University, Hakozaki, Higashi-ku, Fukuoka, Japan.
authors.forename: Masami
authors.initials: M
authors.lastname: Ichinose
authors.forename: Hidehiro
authors.initials: H
authors.lastname: Suematsu
authors.forename: Yoichi
authors.initials: Y
authors.lastname: Yasutomi
authors.forename: Yota
authors.initials: Y
authors.lastname: Nishioka
authors.forename: Tatsuya
authors.initials: T
authors.lastname: Uchida
authors.forename: Tsutomu
authors.initials: T
authors.lastname: Katsuki
mesh_terms: D000586:Amination; D015394:Molecular Structure; D055620:Optical Phenomena; D013237:Stereoisomerism; D013449:Sulfonamides / Q000138:chemical synthesis* / Q000737:chemistry
chemical_list: D013449:Sulfonamides