Au(I)/Ag(I)-Catalyzed Cascade Approach for the Synthesis of Benzo[4,5]imidazo[1,2-<i>c</i>]pyrrolo[1,2-<i>a</i>]quinazolinones
作者:Xun Ji、Yu Zhou、Jinfang Wang、Linxiang Zhao、Hualiang Jiang、Hong Liu
DOI:10.1021/jo400228g
日期:2013.5.3
Au(I)/Ag(I)-catalyzed cascade method has been developed for one-pot synthesis of the complex polycyclic heterocycles benzo[4,5]imidazo[1,2-c]pyrrolo[1,2-a]quinazolinone derivatives through treatment of the substituted 2-(1H-benzo[d]imidazol-2-yl)anilines with 4-pentynoic acid or 5-hexynoic acid. The strategy features a Au(I)/Ag(I)-catalyzed one-pot cascadeprocess involving the formation of three new C–N bonds in
已开发出一种高效且简便的Au(I)/ Ag(I)催化级联方法,用于一锅合成复杂的多环杂环苯并[4,5]咪唑并[1,2- c ]吡咯并[1,2-通过用4-戊酸或5-己酸处理取代的2-(1H-苯并[ d ]咪唑-2-基)苯胺来制备α ]喹唑啉酮衍生物。该策略以Au(I)/ Ag(I)催化的一锅级联过程为特色,该过程涉及以高产率形成三个新的C–N键,并且具有广泛的底物范围。
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。