title: Synthesis of chromeno[2,3-b]indol-11(6H)-one via PhI(OAc)2-mediated intramolecular oxidative C(sp(2))–N(H2) bond formation.
abstract: Various chromeno[2,3-b]indol-11(6H)-ones were conveniently constructed via phenyliodine(III) diacetate (PIDA)-mediated intramolecular oxidative annulation. This method, while realizing a direct oxidative C–N bond formation between an aromatic ring and a pendent free-NH2 moiety, features a metal-free protocol, mild reaction conditions, simple workup, and the ready availability of the starting substrates.
authors.forename: Jiyun
authors.initials: J
authors.lastname: Sun
authors.forename: Daisy
authors.initials: D
authors.lastname: Zhang-Negrerie
authors.forename: Yunfei
authors.initials: Y
authors.lastname: Du
authors.forename: Kang
authors.initials: K
authors.lastname: Zhao
mesh_terms: D001578:Benzopyrans / Q000138:chemical synthesis* / Q000737:chemistry*; D002384:Catalysis; D007211:Indoles / Q000138:chemical synthesis* / Q000737:chemistry*; D007462:Iodobenzenes / Q000737:chemistry*; D015394:Molecular Structure; D010084:Oxidation-Reduction; D012238:Rhodium / Q000737:chemistry*
chemical_list: D001578:Benzopyrans; D007211:Indoles; D007462:Iodobenzenes; D012238:Rhodium