Novel Formation of Oxazepino[4,5-<i>a</i>]quinolines by Tandem 1,3-Dipolar and Insertion Reaction of Quinoline <i>N</i>-Oxides with Arynes
作者:Kentaro Okuma、Koki Hirano、Chisato Shioga、Noriyoshi Nagahora、Kosei Shioji
DOI:10.1246/bcsj.20120325
日期:2013.5.15
By combination of 1,3-dipolar cycloaddition and N–O single bond insertion, tandem synthesis of dibenzo[1,4]oxazepino[4,5-a]quinolines was accomplished. Reaction of quinoline N-oxides with arynes afforded 2-(2-hydroxyphenyl)quinolines and 7-membered pentacyclic oxazepino[4,5-a]quinolines.
通过1,3-偶极环加成和N–O单键插入的组合,实现了二苯并[1,4]噁唑啉[4,5-a]喹啉的串联合成。喹啉N-氧化物与芳炔的反应生成了2-(2-羟基苯基)喹啉和7元环的五环噁唑啉[4,5-a]喹啉。