参考标题:Synthesis Of Novel Heterocycles By Amide Activation And Umpolung Cyclization 作者:Haoqi Zhang,Margaux Riomet,Alexander Roller,Nuno Maulide |发布日期:2020.3.20 摘要:Herein, We Report A Metal-Free Synthesis Of Cyclic Amidines, Oxazines, And An Oxazinone Under Mild Conditions By Electrophilic Amide Activation. This Strategy Features An Unusual Umpolung Cyclization Mode And Enables The Smooth Union Of α-Aryl Amides And Diverse Alkylazides, Effectively Rerouting Our Previously Reported α-Amination Transform.