Catalyst-free Synthesis of 5-Arylimidazo[1,2-<i>c</i>]quinazoline Derivatives in Ionic Liquids
作者:Wen-Wen Qiang、Mei-Mei Zhang、Xiang-Shan Wang
DOI:10.1002/jhet.2613
日期:2017.1
aldehyde was treated in ionic liquids under catalyst‐free condition and gave dehydrogenated 5‐aryl‐2,3‐diphenylimidazo[1,2‐c]quinazolines. The same reaction gave un‐aromatized 5‐aryl‐2,3‐diphenyl‐5,6‐dihydroimidazo[1,2‐c]quinazoline derivatives while it was controlled in an inert gas. This procedure approach to imidazo[1,2‐c]quinazolines has the advantages of milder reaction conditions, one‐pot, catalyst free
在无催化剂条件下,在离子液体中处理2-(4,5-二苯基-1 H-咪唑-2-基)苯胺与芳香醛的反应,得到脱氢的5-芳基-2,3-二苯基咪唑[1, 2– c ]喹唑啉。相同的反应得到未芳化的5-芳基-2,3-二苯基-5,6-二氢咪唑并[1,2- c ]喹唑啉衍生物,同时在惰性气体中进行控制。这种咪唑并[1,2- c ]喹唑啉的程序化方法具有反应条件温和,单反应釜,无催化剂,高收率和环境友好的优点。