3-Cyanomethylated imidazopyridines were synthesized via a visible light-promoted reaction of imidazopyridines with bromoacetonitrile or iodoacetonitrile catalyzed by fac-Ir(ppy)3 under mild conditions. For the substrates with various substituents on benzene or pyridine ring, the reaction proceeded smoothly to give the corresponding products in moderate to good yields. The synthetic utility of this
通过fac -Ir(ppy)3在温和条件下催化的
咪唑并
吡啶与
溴乙腈或
碘乙腈的可见光促进反应合成了3-
氰基甲基化的
咪唑并
吡啶。对于在苯或
吡啶环上具有各种取代基的底物,反应平稳进行,以中等至良好的产率得到相应的产物。这种可见光诱导的反应的合成效用已经在
唑吡坦和
阿吡坦的有效合成中得到了说明。