title: Regioselective Annulation of Aryl Sulfonamides with Allenes through Cobalt-Promoted C-H Functionalization.
abstract: The development of an efficient method for the construction of biologically relevant sultams is described, which represents the first case of cobalt-promoted C-H/N-H functionalization of sulfonamides with allenes. This newly developed annulation reaction demonstrated good functional group tolerance and excellent regioselectivity. Both terminal monosubstituted allenes and internal disubstituted allenes can be employed to give the desired sultams in good yields. This strategy can be successfully used to build a unique sultam library with novel structural diversity.
authors.affiliation: MOE Key Laboratory of Protein Sciences, School of Pharmaceutical Sciences, Tsinghua University , Beijing 100084, China.
authors.forename: Tianlong
authors.identifier: 0000-0002-9435-9959
authors.initials: T
authors.lastname: Lan
authors.affiliation: MOE Key Laboratory of Protein Sciences, School of Pharmaceutical Sciences, Tsinghua University , Beijing 100084, China.
authors.forename: Liguo
authors.initials: L
authors.lastname: Wang
authors.affiliation: MOE Key Laboratory of Protein Sciences, School of Pharmaceutical Sciences, Tsinghua University , Beijing 100084, China.
authors.forename: Yu
authors.initials: Y
authors.lastname: Rao