Synthesis of 4- and 4,5-functionalized imidazol-2-ylidenes from a single 4,5-unsubstituted imidazol-2-ylidene.

Autor: Mendoza-Espinosa D; UCR-CNRS Joint Research Chemistry Laboratory (UMR 2282), Department of Chemistry, University of California, Riverside, California 92521-0403, USA., Donnadieu B, Bertrand G
Jazyk: angličtina
Zdroj: Journal of the American Chemical Society [J Am Chem Soc] 2010 Jun 02; Vol. 132 (21), pp. 7264-5.
DOI: 10.1021/ja102639a
Abstrakt: Using the nucleophilicity of NHCs and aNHCs, as well as the leaving group ability of the former, the carbon-carbon double bond of imidazol-2-ylidenes can be readily mono- and difunctionalized. These results provide also a new light on the formation of abnormal carbene adducts from classical unsaturated NHCs.
Databáze: MEDLINE