1.
Chem Commun (Camb)
; 48(17): 2349-51, 2012 Feb 25.
Article
in English
| MEDLINE
| ID: mdl-22258227
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.
2.