title: Gold-catalyzed intermolecular formal (3+2) cycloaddition of stabilized vinyldiazo derivatives and electronically unbiased allenes.
abstract: The reaction of electronically unbiased allenes with alkenyldiazo compounds in the presence of gold catalysts provided alkylidenecyclopentene derivatives resulting from a formal intermolecular (3+2) carbocyclization. A stepwise mechanism involving initial activation of the diazo component and subsequent formation of an allyl cation intermediate has been proposed. This process represents the first intermolecular gold-catalyzed cycloaddition involving non-activated allenes.
authors.affiliation: Departamento de Química Orgánica e Inorgánica, Universidad de Oviedo, c/Julián Clavería 8, 33006-Oviedo, Spain and Instituto Universitario de Química Organometálica "Enrique Moles", Universidad de Oviedo, c/Julián Clavería 8, 33006-Oviedo, Spain. lalg@uniovi.es.
authors.forename: Enol
authors.initials: E
authors.lastname: López
authors.affiliation: Departamento de Química Orgánica e Inorgánica, Universidad de Oviedo, c/Julián Clavería 8, 33006-Oviedo, Spain and Instituto Universitario de Química Organometálica "Enrique Moles", Universidad de Oviedo, c/Julián Clavería 8, 33006-Oviedo, Spain. lalg@uniovi.es.
authors.forename: Giacomo
authors.initials: G
authors.lastname: Lonzi
authors.affiliation: Departamento de Química Orgánica e Inorgánica, Universidad de Oviedo, c/Julián Clavería 8, 33006-Oviedo, Spain.
authors.forename: Javier
authors.initials: J
authors.lastname: González
authors.affiliation: Departamento de Química Orgánica e Inorgánica, Universidad de Oviedo, c/Julián Clavería 8, 33006-Oviedo, Spain and Instituto Universitario de Química Organometálica "Enrique Moles", Universidad de Oviedo, c/Julián Clavería 8, 33006-Oviedo, Spain. lalg@uniovi.es.
authors.forename: Luis A
authors.initials: LA
authors.lastname: López