A simple and efficient procedure for the synthesis of aryl- and vinyl-selenides has been developed by a copper nanoparticle catalysed reaction of aryl iodide/vinyl bromide with diphenyl diselenide in the presence of zinc in water. (E)-Vinyl bromides produce (E)-vinyl selenides stereoselectively, whereas (Z)-vinyl bromides provide mixtures of (E) and (Z) isomers. The catalyst was recycled.
通过
铜纳米粒子催化的反应,在
水中的
锌存在下,已开发出一种合成芳基和
乙烯基硒化物的简单高效过程。这一过程利用芳基
碘化物/
乙烯基溴化物与二苯基二
硒化物的反应。(E)-
乙烯基溴化物有选择性地生成(E)-
乙烯基硒化物,而(Z)-
乙烯基溴化物则生成(E)和(Z)异构体的混合物。催化剂可以回收利用。