title: From diphosphino-functionalized 1,3-dialkylimidazolium cations to imidazolones through dehydrogenative C-N coupling.
abstract: Diphosphino-functionalized 1,3-dialkylimidazolium salts react with KOH affording amine/formamide open-chain products, which fully revert to the imidazolium cation by treatment with a variety of acids or are converted to 2-imidazolones by noncatalyzed intramolecular dehydrogenative C-N coupling, a process that is modulated by coordination of the phosphino functionalities to transition metals.
authors.affiliation: Departamento de Química Orgánica e Inorgánica, Universidad de Oviedo, Facultad de Química, 33006 Oviedo (Spain), Fax: (+34) 985103446. jruiz@uniovi.es.
authors.forename: Javier
authors.initials: J
authors.lastname: Ruiz
authors.forename: Alejandro F
authors.initials: AF
authors.lastname: Mesa
keywords: N-heterocyclic carbenes; dehydrogenation; imidazolones; organic synthesis; phosphane complexes