N-Aryl-2-nitrosoanilines, easily availablefrom reaction of nitroarenes with anilide anions, undergo base-promotedcondensation reaction with substituted benzyl aryl sulfones, furnishing1,2-diaryl-1 H-benzimidazoles.
N-Aryl-2-
亚硝基苯胺很容易从硝基
芳烃与
苯胺阴离子的反应中获得,与取代的苄基芳基砜发生碱促进的缩合反应,得到1,2-二芳基-1H-
苯并咪唑。