title: tert-Butyl nitrite mediated regiospecific nitration of (E)-azoarenes through palladium-catalyzed directed C-H activation.
abstract: An efficient protocol for the Pd-catalyzed regiospecific ortho-nitration of (E)-azoarenes has been achieved for the first time using tBuONO as a nitrating agent under atmospheric oxygen. A series of both symmetrical and unsymmetrical azoarenes were nitrated efficiently by this procedure providing excellent chemo- and regioselectivity and compatibility with a broad array of functional groups.
authors.affiliation: Department of Organic Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Kolkata-700032 (India).
authors.forename: Biju
authors.initials: B
authors.lastname: Majhi
authors.forename: Debasish
authors.initials: D
authors.lastname: Kundu
authors.forename: Sabir
authors.initials: S
authors.lastname: Ahammed
authors.forename: Brindaban C
authors.initials: BC
authors.lastname: Ranu
mesh_terms: D001391:Azo Compounds / Q000737:chemistry*; D002384:Catalysis; D006841:Hydrocarbons, Aromatic / Q000737:chemistry*; D008958:Models, Molecular; D009566:Nitrates / Q000737:chemistry*; D009573:Nitrites / Q000737:chemistry*; D010165:Palladium / Q000737:chemistry*; D013237:Stereoisomerism
chemical_list: D001391:Azo Compounds; D006841:Hydrocarbons, Aromatic; D009566:Nitrates; D009573:Nitrites; C024225:n-butyl nitrite; D010165:Palladium
keywords: CH activation; nitration; o-nitroazoarenes; palladium; tert-butyl nitrite