title: Synthesis of tetramic acid derivatives via intramolecular sp3 C-H amination mediated by hypervalent iodine(III) reagents/Brønsted acids.
abstract: An efficient synthesis of tetramic acid derivatives was developed via intramolecular sp(3) C-H aminations of 1-acetyl N-aryl cyclopropane/cyclopentanecarboxamides in the presence of PhI(OPiv)(2) and CH(3)CH(2)COOH.
authors.affiliation: Department of Chemistry, Northeast Normal University, Changchun, 130024, PR China.
authors.forename: Lujia
authors.initials: L
authors.lastname: Mao
authors.forename: Yan
authors.initials: Y
authors.lastname: Li
authors.forename: Tao
authors.initials: T
authors.lastname: Xiong
authors.forename: Kai
authors.initials: K
authors.lastname: Sun
authors.forename: Qian
authors.initials: Q
authors.lastname: Zhang