Copper-Catalyzed Dihydroquinolinone Synthesis from Isocyanides and <i>O</i>-Benzoyl Hydroxylamines
作者:Zhen Yang、Kun Jiang、Ying-Chun Chen、Ye Wei
DOI:10.1021/acs.joc.9b00262
日期:2019.3.15
A copper-catalyzed protocol has been realized for the rapid assembly of dihydroquinolinones from readily accessible isocyanides and O-benzoyl hydroxylamines. The reactions (10 mol % of CuOAc, 10 mol % of dppe, 3 equiv of PhONa, 30 °C) deliver various structurally interesting dihydroquinolinones in moderate to good yields (up to 76%). The reactions may proceed in a cascade manner involving isocyanide
已经实现了铜催化的方案,用于从容易获得的异氰酸酯和O-苯甲酰基羟胺快速组装二氢喹啉酮。反应(10 mol%的CuOAc,10 mol%的dppe,3当量的PhONa,30°C)以中等至良好的收率(高达76%)提供了各种结构有趣的二氢喹啉酮。反应可能以级联方式进行,包括将异氰酸酯插入N–O键,Mumm型重排和分子内亲核取代。