Catalyst-free rapid synthesis of benzo[4,5]imidazo[1,2-a]-pyrimidine-3-carboxamides via four-component coupling in one pot
作者:Ahmad Shaabani、Mozhdeh Seyyedhamzeh、Nasim Ganji、Seik Weng Ng
DOI:10.1007/s13738-013-0321-6
日期:2014.4
A new class of fused tricyclic benzo[4,5]imidazo[1,2-a]-pyrimidine-3-carboxamide derivatives was synthesized via an environmentally benign one pot sequential four-component condensation reaction of an amine, 2,2,6-trimethyl-4H-1,3-dioxin-4-one, an aldehyde and 1H-benzo[d]imidazol-2-amine without using catalyst in good yields.
合成了一类新型的熔合三环苯并[4,5]咪唑[1,2-a]嘧啶-3-羧酰胺衍生物,该反应通过环境友好的一步法顺序四组分缩合反应进行,反应物包括胺、2,2,6-三甲基-4H-1,3-二氧-4-酮、醛和1H-苯并[d]咪唑-2-胺,无需使用催化剂,产率良好。