title: Visible-Light-Promoted AuIto AuIIIOxidation in Triazol-5-ylidene Complexes.
abstract: Reaction of triazolium precursors [MIC(CH2)n- H+]I-(n=1-3) with potassium hexamethyldisilazane (KHMDS) and AuCl(SMe2) generates the gold(I) complexes of the type MIC(CH2)n⋅AuI. Visible light exposure of the latter complexes promotes a spontaneous disproportionation process rendering gold(III) complexes of the type [{MIC(CH2)n}2⋅AuI2]+I-. Both the AuIand AuIIIcomplex series were tested in the catalytic hydrohydrazination of terminal alkynes using hydrazine as nitrogen source.
authors.affiliation: Departamento de Ciencias Básicas, Universidad Autónoma Metropolitana-Azcapotzalco, Avenida San Pablo No. 180, Cuidad de México, 02200, México.
authors.forename: Daniel
authors.initials: D
authors.lastname: Mendoza-Espinosa
authors.affiliation: Departamento de Ciencias Básicas, Universidad Autónoma Metropolitana-Azcapotzalco, Avenida San Pablo No. 180, Cuidad de México, 02200, México.
authors.forename: David
authors.initials: D
authors.lastname: Rendón-Nava
authors.affiliation: Área Académica de Química, Universidad Autónoma del Estado de Hidalgo, Carretera Pachuca-Tulancingo Km. 4.5, Mineral de la Reforma, Hidalgo, 42090, México.
authors.forename: Alejandro
authors.initials: A
authors.lastname: Alvarez-Hernández
authors.affiliation: Departamento de Ciencias Básicas, Universidad Autónoma Metropolitana-Azcapotzalco, Avenida San Pablo No. 180, Cuidad de México, 02200, México.
authors.forename: Deyanira
authors.initials: D
authors.lastname: Angeles-Beltrán
authors.affiliation: Departamento de Ciencias Básicas, Universidad Autónoma Metropolitana-Azcapotzalco, Avenida San Pablo No. 180, Cuidad de México, 02200, México.
authors.forename: Guillermo E
authors.initials: GE
authors.lastname: Negrón-Silva
authors.affiliation: Área Académica de Química, Universidad Autónoma del Estado de Hidalgo, Carretera Pachuca-Tulancingo Km. 4.5, Mineral de la Reforma, Hidalgo, 42090, México.
authors.forename: Oscar R
authors.initials: OR
authors.lastname: Suárez-Castillo
keywords: alkynes; gold(I); gold(III); hydrohydrazination; mesoionic carbenes; oxidation