An unprecedented transfer of selenium ion from potassium selenocyanate was observed in C-Se cross-coupling reaction catalyzed by copper oxide nanoparticles under ligand-free conditions. Utilizing this protocol wide range of symmetrical diaryl selenides were obtained in excellent yields. Nano-CuO is recyclable up to four cycles without loss of catalytic activity.
在无
配体条件下,
铜氧化物纳米颗粒催化C-Se交叉偶联反应中观察到前所未有的
硒离子来自
亚硒酸钾的转移现象。利用这一方法,成功获得了广泛的对称二芳基
硒化合物,并且产率极佳。纳米CuO具有可循环使用四次的特性,且不会损失催化活性。