Cu-Catalyzed π-Core Evolution of Benzoxadiazoles with Diaryliodonium Salts for Regioselective Synthesis of Phenazine Scaffolds
作者:Jinyu Sheng、Ru He、Jie Xue、Chao Wu、Juan Qiao、Chao Chen
DOI:10.1021/acs.orglett.8b01748
日期:2018.8.3
The Cu-catalyzed regioselective synthesis of phenazine N-oxides was realized from benzoxadiazoles and diaryliodonium salts. The process was initiated by the electrophilic arylation of benzoxadiazoles with diaryliodonium salts and followed by benzocyclization reactions. The further reduction of N-oxides in situ to phenazine scaffolds and deviation to organic fluorescent materials were readily accomplished
由苯并恶二唑和二芳基碘鎓盐实现了铜催化的吩嗪N-氧化物的区域选择性合成。该过程通过苯并恶二唑与二芳基碘鎓盐的亲电芳基化反应开始,然后进行苯并环化反应。容易将原位N-氧化物进一步还原为吩嗪支架并偏离有机荧光材料。