title: Silver- versus gold-catalyzed sequential oxidative cyclization of unprotected 2-alkynylanilines with oxone.
abstract: Unprecedented domino oxidative cyclization reactions of unprotected 2-alkynylanilines to give functionalized 4H-benzo[d][1,3]oxazin-4-one or benzisoxazole derivatives in moderate to good yields are achieved by silver vs. gold selective catalysis. The search for the optimal reaction conditions revealed the divergent catalytic activity of NaAuCl4·H2O and AgNO3.
authors.affiliation: Dipartimento di Scienze Fisiche e Chimiche, Università di L'Aquila, Via Vetoio-67010 Coppito (AQ), Italy. antonio.arcadi@univaq.it.
authors.forename: A
authors.initials: A
authors.lastname: Arcadi
authors.affiliation: Facoltà di Bioscienze e Tecnologie Agro-alimentari e Ambientali, Università di Teramo, Via Lerici 1, 64023-Mosciano Sant'Angelo (Te), Italy.
authors.forename: M
authors.initials: M
authors.lastname: Chiarini
authors.affiliation: Dipartimento di Scienze Fisiche e Chimiche, Università di L'Aquila, Via Vetoio-67010 Coppito (AQ), Italy. antonio.arcadi@univaq.it and PSL Research University, Chimie ParisTech-CNRS, Institut de Recherche de Chimie Paris, 75005 Paris, France. veronique.michelet@chimie-paristech.fr.
authors.forename: L
authors.initials: L
authors.lastname: Del Vecchio
authors.affiliation: Dipartimento di Scienze Fisiche e Chimiche, Università di L'Aquila, Via Vetoio-67010 Coppito (AQ), Italy. antonio.arcadi@univaq.it.
authors.forename: F
authors.initials: F
authors.lastname: Marinelli
authors.affiliation: PSL Research University, Chimie ParisTech-CNRS, Institut de Recherche de Chimie Paris, 75005 Paris, France. veronique.michelet@chimie-paristech.fr.
authors.forename: V
authors.initials: V
authors.lastname: Michelet
mesh_terms: D000814:Aniline Compounds / Q000737:chemistry*; D002384:Catalysis; D003500:Cyclization; D006046:Gold / Q000737:chemistry*; D010084:Oxidation-Reduction; D012834:Silver / Q000737:chemistry*; D013464:Sulfuric Acids / Q000737:chemistry*
chemical_list: D000814:Aniline Compounds; D013464:Sulfuric Acids; D012834:Silver; D006046:Gold; C048813:potassium peroxymonosulfuric acid; C023650:aniline