Acid/base-co-catalyzed cyclization of ketones with o-amino-benzylamines: Direct synthesis of quinoline compounds
作者:Xiaoyong Zhang、Jing Chen、Shengli Yong、Yulong Zhao
DOI:10.1016/j.tetlet.2023.154700
日期:2023.9
The reaction provides an efficient and general strategy for the construction of fused N-heterocyclic compounds, such as dihydrobenzo[c]acridines, indeno[1,2-b]quinolines, dihydro-5H-benzo[6,7]cyclohepta[1,2-b]- quinolines and quinolones in a single step. The broad scope and the use of oxygen as the sole oxidant make this transformation an attractive approach for the synthesis of the above mentioned scaffolds
描述了一种采用分子氧作为清洁氧化剂的各种酮与邻氨基苄胺的新型酸/碱共催化串联环化反应。该反应为稠合N-杂环化合物的构建提供了有效且通用的策略,例如二氢苯并[ c ]吖啶、茚并[1,2- b ]喹啉、二氢-5H-苯并[6,7]环庚[1 ,2- b ]-喹啉和喹诺酮一步完成。氧气作为唯一氧化剂的广泛范围和使用使得这种转化成为合成上述支架的有吸引力的方法。