1-Aryl-3-(1-aryl-4-chloro-1H-imidazol-5-yl)prop-2-en-1-ones prepared from 1-aryl-4-chloro-1H-imidazole-5-carbaldehydes and methyl aryl ketones reacted with nitromethane affording 1-aryl-3-(1-aryl-4-chloro-1H-imidazol-5-yl)-4-nitrobutan-1-ones which were reduced with zink in acetic acid to obtain 1-aryl-5-(2-aryl-3,4-dihydro-2H-pyrrol-4-yl)-4-chloro-1H-imidazoles.