Convenient and selective synthesis of 4-trifluoromethylimidazoles
Thermally induced cyclization of 3-aryl-1, 1, 1-trifluoropropane-2, 3-dione 2-dimethylhydrazones (5) which can be readily prepared from corresponding arenecarbaldehydes afforded selectively the title compounds (3) in high yields without formation of the r