作者:B. P. Nandeshwarappa、S. Manjappa、B. Kishore
DOI:10.1080/17415993.2011.601870
日期:2011.10.1
convenient, efficient and inexpensive procedure for the synthesis of thieno[2,3-b]quinolines was devised. 3-Formyl-2-chloroquinoline 2a on treating with various substituted anilines 3a–e produced N-[(1E)(2-chloroquinolin-3-yl)methylidene]anilines 4a–e. The resulted compounds on further treatment with chloroacetyl chloride gave substituted azetidinones 5a–e. These compounds are easily converted to thieno[2
设计了一种方便、有效且廉价的合成噻吩并 [2,3-b] 喹啉的方法。3-甲酰基-2-氯喹啉2a 用各种取代苯胺3a-e 处理产生N-[(1E)(2-氯喹啉-3-基)亚甲基]苯胺4a-e。得到的化合物用氯乙酰氯进一步处理得到取代的氮杂环丁酮 5a-e。通过在乙醇中使用硫化钠,这些化合物很容易转化为噻吩并 [2,3-b] 喹啉 6a-e。所有新合成化合物的结构均基于元素分析、IR、 1 H NMR和质谱数据阐明。