Nickel-Catalyzed Photoredox-Mediated Cross-Coupling of Aryl Electrophiles and Aryl Azides
作者:Mikhail O. Konev、T. Andrew McTeague、Jeffrey W. Johannes
DOI:10.1021/acscatal.8b02954
日期:2018.10.5
dual catalytic nickel/ruthenium system from aryl azides and aryl electrophiles. Photoreduction of the aryl azide is proposed to proceed through an arylnickel-azide complex, which upon reduction and loss of nitrogen, generates a nickel(III) species capable of facile reductive elimination to afford the desired C–N bond formation. A variety of functionalized (hetero)aryl electrophiles are shown to participate
通过光氧化还原介导的双催化镍/钌体系,由芳基叠氮化物和芳基亲电试剂制备药用相关的二芳基胺。提议通过芳基镍-叠氮化物配合物进行芳基叠氮化物的光还原,该复合物在氮的还原和损失后会生成能够容易地消除以提供所需的C–N键形成的镍(III)物种。各种官能化的(杂)芳基亲电试剂显示参与偶联,包括碘化物,溴化物,氯化物和三氟甲磺酸酯。该反应易于建立并且在环境条件下进行,不排除氧气或湿气。