Mild and Direct Conversion of Quinoline <i>N</i>-Oxides to 2-Amidoquinolines with Primary Amides
作者:Michel Couturier、Laurence Caron、Stephanie Tumidajski、Kris Jones、Timothy D. White
DOI:10.1021/ol060473w
日期:2006.4.1
[reaction: see text] A simple, one-pot procedure is described for the direct conversion of quinoline N-oxides to alpha-amidoquinolines with primary amides. This methodology is complimentary to the Abramovich reaction, which is limited to the introduction of secondary amides via imidoyl chlorides. Although reaction conditions are quite similar, omission of the base is key for successful reaction with
[反应:见正文]描述了一种简单的一锅法,该方法可将喹啉N-氧化物直接与伯酰胺转化为α-酰胺基喹啉。这种方法是对Abramovich反应的补充,Abramovich反应仅限于通过亚氨酰氯引入仲酰胺。尽管反应条件非常相似,但省略碱是与伯酰胺成功反应的关键,伯酰胺不是通过亚氨酰氯的中间体而是通过酰基异氰酸酯来进行的。