Interplay between an elusive 4-(isopropylamino)imidazol-2-ylidene and its isolable mesoionic tautomer, and associated reactivities - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Chemical Communications Année : 2012

Interplay between an elusive 4-(isopropylamino)imidazol-2-ylidene and its isolable mesoionic tautomer, and associated reactivities

Résumé

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.
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hal-02909453 , version 1 (30-07-2020)

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Vincent César, Jean-Christophe Tourneux, Nadia Vujkovic, Rémy Brousses, Noël Lugan, et al.. Interplay between an elusive 4-(isopropylamino)imidazol-2-ylidene and its isolable mesoionic tautomer, and associated reactivities. Chemical Communications, 2012, 48 (17), pp.2349. ⟨10.1039/C2CC17870B⟩. ⟨hal-02909453⟩
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