NEW METHODOLOGY OF FUNCTIONALIZATION OF THE IMIDAZOLE RING BY ALKYNES
DOI:
https://doi.org/10.1007/1309Keywords:
carbenes, electron-deficient acetylenes, imidazoles, zwitterions, functionalization, multicomponent reactions, nucleophilic addition, (C-2)-vinylationAbstract
A new methodology for functionalization of the imidazole ring via the zwitterionic intermediates and their carbene tautomers generated by nucleophilic addition of 1-substituted imidazoles to electron-deficient acetylenes followed by the reactions with appropriate electrophiles is discussed.
Also published in Chemistry of Heterocyclic Compounds, 2012, 48 (1), pp 147-154