Research on heterocyclic compounds. XX. Synthesis of trifluoromethyl derivatives of fused imidazole systems
作者:Enrico Abignente、Paolo de Caprariis、Rosaria Patscot、Antonella Sacchi
DOI:10.1002/jhet.5570230413
日期:1986.7
A series of heterocyclic compounds having an imidazole ring fused with another ring with a bridgehead nitrogen atom and bearing a trifluoromethyl moiety was synthesized by reaction of 3-bromo-1,1,1-trifluoroacetone with various heteroarylamines. In some cases, an intermediate compound obtained together with the required product was isolated and its structure was elucidated: e.g., starting from 2-aminopyridine
通过3-溴-1,1,1-三氟丙酮与各种杂芳基胺的反应合成了一系列具有咪唑环的杂环化合物,所述咪唑环与另一个带有桥头氮原子的环稠合并且带有三氟甲基部分。在某些情况下,分离出与所需产物一起获得的中间体化合物,并阐明其结构:例如,从2-氨基吡啶开始,我们获得了2-三氟甲基咪唑并[1,2-a]吡啶和2-羟基-2-三氟甲基-2,3-二氢-1 H-咪唑并[1,2- a ]溴化吡啶鎓。这样的结果证实了先前提出的用于该反应的机理。