title: A new approach to polycyclic azonia cations by ring-closing metathesis.
abstract: The ring-closing metathesis (RCM) reaction of N-vinyl-alpha-(2-styryl)azinium salts, using the Hoveyda-Grubbs catalyst, leads to different tricyclic and tetracyclic azonia cations with moderate to good yields. This is the first time that a highly electron-deficient alkene such as an N-vinylpyridinium has been involved in an RCM process.
authors.affiliation: Departamento de Química OrgAnica, Universidad de AlcalA, 28871-AlcalA 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