title: Ionic and covalent copper(II)-based catalysts for Michael additions. The mechanism.
abstract: Cu(SbF6)2-AdamBox and copper(II) bis-(5-tert-butylsalicylaldehydate) catalyze the Michael addition in neutral media. Mechanistic studies, based on UV-vis, IR, and electrospray ionization mass spectrometry (ESI-MS), suggest that copper enolates of the beta-dicarbonyl formed in situ are the active nucleophilic species.
authors.affiliation: Department of Chemistry, Universitat Autonoma de Barcelona, Cerdanyola, 08193-Barcelona, Spain.
authors.forename: Josep
authors.initials: J
authors.lastname: Comelles
authors.forename: Marcial
authors.initials: M
authors.lastname: Moreno-Mañas
authors.forename: Elisabet
authors.initials: E
authors.lastname: Pérez
authors.forename: Anna
authors.initials: A
authors.lastname: Roglans
authors.forename: Rosa M
authors.initials: RM
authors.lastname: Sebastián
authors.forename: Adelina
authors.initials: A
authors.lastname: Vallribera