Synthesis of Substituted Imidazoles via Organocatalysis

Autor: Frantz, D. E., Morency, L., Soheili, A., Murry, J. A., Grabowski, E. J. J., Tillyer, R. D.
Zdroj: Organic Letters; March 2004, Vol. 6 Issue: 5 p843-846, 4p
Abstrakt: A one-pot synthesis of substituted imidazoles is described. The cornerstone of this methodology involves the thiazolium-catalyzed addition of an aldehyde to an acyl imine to generate the corresponding α-ketoamide in situ followed by ring closure to the imidazole in a one-pot sequence. The extension of this methodology to the one-pot synthesis of substituted oxazoles and thiazoles is also described.
Databáze: Supplemental Index