RSC Publishing


Publishing

 

Cover image for Chemical Communications, select for current issue

Chemical Communications

Urgent high quality communications from across the chemical sciences.




Communication

Chem. Commun., 2009, 4720 - 4722, DOI: 10.1039/b907908d


Imidazol-2-ylidene-4-olate: an anionic N-heterocyclic carbene pre-programmed for further derivatization

Laure Benhamou, Vincent César, Heinz Gornitzka, Noël Lugan and Guy Lavigne


The 4-hydroxyimidazolium salt, readily prepared in two steps by acylation of a formamidine and quaternization of the second nitrogen, affords, after deprotonation, the anionic imidazol-2-ylidene-4-olate, which can be complexed to a transition metal and still be subsequently functionalized at O or C backbone atom in the outer coordination sphere of the metal.

Graphical abstract image for this article  (ID: b907908d)