Three-component cyclization of 4-aryl-1,4-dihydrobenzo[4,5]imidazo[1,2-a][1,3,5]triazin-2-amines with formaldehyde and primary amines gave the corresponding 6-unsubstituted or 6-aryl-2-alkyl-2,3,4,6-tetrahydro-1H-[1,3,5]triazino[1′,2′:3,4][1,3,5]triazino[1,2-a]benzimidazoles.
4-芳基-1,4-二氢苯并[4,5]
咪唑并[1,2- a ] [1,3,5]三嗪-2-胺与
甲醛和
伯胺的三组分环化反应得到相应的6-未取代或6-芳基-2-烷基-2,3,4,6-四氢-1 H- [1,3,5] triazino [1',2':3,4] [1,3,5] triazino [ 1,2- α ]
苯并咪唑。