An Efficient Synthesis of Pyrrolo[1,2-<i>a</i>] or Pyrido[1,2-<i>a</i>]benzo[4,5]imidazo[1,2-<i>c</i>]quinazoline Derivatives in Ionic Liquids Catalyzed by Iodine
作者:Yue Wang、Jian-Quan Liu、Xiang-Shan Wang
DOI:10.1002/jhet.2967
日期:2017.11
2‐(1H‐benzo[d]imidazol‐2‐yl)anilines reacted with haloketones including 5‐chloropentan‐2‐one and 6‐chlorohexan‐2‐one catalyzed by iodine, giving benzo[4,5]imidazo[1,2‐c]pyrrolo[1,2‐a]quinazoline and 6H‐benzo[4,5]imidazo[1,2‐c]pyrido[1,2‐a]quinazoline derivatives, respectively. This domino‐type reaction formed two new heterocycles and three new covalent bonds in one‐pot procedure and provided a green
2-(1 H-苯并[ d ]咪唑-2-基)苯胺与碘催化的卤代酮反应,包括5-氯戊烷-2-一和6-氯己酮-2-一,得到苯并[4,5]咪唑并[1]分别是,2- c ]吡咯并[1,2- a ]喹唑啉和6 H-苯并[4,5]咪唑并[1,2- c ]吡啶基[1,2- a ]喹唑啉衍生物。这种多米诺型反应在一锅法中形成了两个新的杂环和三个新的共价键,为在离子液体中合成同时带有喹唑啉和苯并咪唑部分的稠合五环杂环提供了一种绿色方法。