Room-temperature copper-catalyzed electrophilic amination of arylcadmium iodides with ketoximes
作者:Adem Korkmaz
DOI:10.1007/s13738-021-02254-4
日期:2021.11
organocadmium reagent and amination agent. In the case of both amination reagents, meta-substituted arylamines were obtained in higher yields than para-substituted arylamines. We observed that acetone O-(4-chlorophenylsulfonyl)oxime, 1, as an aminating agent, was more successful than acetone O-(2-Naphthylsulfonyl)oxime, 2, in the synthesis of functionalized arylamines by electrophilic amination of corresponding
我们通过制备两种酮肟开始我们的研究。后来,有研究揭示了这些酮肟在与有机镉试剂的亲电胺化反应中的作用。首先,观察到芳基碘化镉在室温下在没有催化剂的情况下不能与酮肟反应。CuCN 是这种芳基碘化镉亲电胺化反应的合适催化剂,并允许在温和的反应条件下以良好的产率制备官能化的苯胺衍生物。我们得到的结果表明,伯芳胺的产率强烈依赖于有机镉试剂和胺化剂的空间和电子效应。在两种胺化试剂的情况下,间位取代的芳胺的产率高于对位取代的芳胺。O -(4-氯苯磺酰基)肟, 1作为胺化剂, 在通过相应芳基碘化镉的亲电胺化合成官能化芳胺方面,比丙酮O -(2-萘基磺酰基) 肟, 2更成功。在这种方法中,没有镉释放到环境中。