title: Interplay between an elusive 4-(isopropylamino)imidazol-2-ylidene and its isolable mesoionic tautomer, and associated reactivities.
abstract: An elusive free 4-(isopropylamino)imidazol-2-ylidene is engaged in a tautomeric equilibrium with its mesoionic tautomer, 4-(isopropylamido)imidazolium, which displays the typical reactivity of a cyclic diaminocarbene; once coordinated to a Rh(I) centre, it undergoes a smooth 4e(-) oxidation of its backbone to yield an amido-amidino-carbene, a weak electron donor viable only in its complexed form.
authors.affiliation: CNRS, LCC (laboratoire de Chimie de Coordination), 205 route de Narbonne, F-31077 Toulouse Cedex 4, France. Vincent.Cesar@lcc-toulouse.fr
authors.forename: Vincent
authors.initials: V
authors.lastname: César
authors.forename: Jean-Christophe
authors.initials: JC
authors.lastname: Tourneux
authors.forename: Nadia
authors.initials: N
authors.lastname: Vujkovic
authors.forename: Rémy
authors.initials: R
authors.lastname: Brousses
authors.forename: Noël
authors.initials: N
authors.lastname: Lugan
authors.forename: Guy
authors.initials: G
authors.lastname: Lavigne