title: Metal-free azaphosphaannulation of phosphonamides through intramolecular oxidative C-N bond formation.
abstract: We report an efficient metal-free azaphosphaannulation of a myriad of phosphonamides through intramolecular oxidative C-N bond formation using PhI(OAc)2 and iodine in acetonitrile under air, thus leading to the formation of benzazaphosphol-3-one 1-oxides, which are novel phosphorus heterocyclic privileged structures.
authors.affiliation: Department of Chemistry, Kangwon National University , Chuncheon 200-701, Republic of Korea.
authors.forename: Yea Rin
authors.initials: YR
authors.lastname: Kim
authors.forename: Seungyoon
authors.initials: S
authors.lastname: Cho
authors.forename: Phil Ho
authors.initials: PH
authors.lastname: Lee