title: Enyne ring-closing metathesis on heteroaromatic cations.
abstract: Cationic heteroaromatic enynes have been employed as substrates in enyne ring-closing metathesis, under an atmosphere of ethylene and using the Hoveyda-Grubbs catalyst, for the first time; the reaction affords new 1-vinyl- and 2-vinyl-substituted 3,4-dihydroquinolizinium salts, useful precursors for biologically relevant cations based on the quinolinizium system.
authors.affiliation: Departamento de Química Orgánica. Universidad de Alcalá, 28871-Alcalá de Henares, Madrid, Spain.
authors.forename: Ana
authors.initials: A
authors.lastname: Núñez
authors.forename: Ana M
authors.initials: AM
authors.lastname: Cuadro
authors.forename: Julio
authors.initials: J
authors.lastname: Alvarez-Builla
authors.forename: Juan J
authors.initials: JJ
authors.lastname: Vaquero