Micellar Catalysis: Visible‐Light Mediated Imidazo[1,2‐
<i>a</i>
]pyridine C—H Amination with
<i>N</i>
‐Aminopyridinium Salt Accelerated by Surfactant in Water
作者:Zhonglie Yang、Kun Cao、Xiaoyan Peng、Li Lin、Danchen Fan、Jun‐Long Li、Jingxia Wang、Xiaobin Zhang、Hezhong Jiang、Jiahong Li
DOI:10.1002/cjoc.202100489
日期:2021.12
A light-promoted metal-free protocol for the amination of imidazo[1,2-a]pyridines with N-aminopyridinium salt by the assistance of surfactants in water was reported, charactering mild and environmentally benign conditions, as well as great functional group tolerance. Micelles with negatively charged polar surface and hydrophobic core formed from sodium dodecyl sulfate serve as an ideal medium for visible-light
报道了在水中表面活性剂的辅助下咪唑并[1,2- a ]吡啶与N-氨基吡啶鎓盐胺化的光促进无金属方案,具有温和和环境友好的条件,以及良好的官能团耐受性. 具有带负电荷的极性表面和由十二烷基硫酸钠形成的疏水核的胶束是可见光介导的阳离子吡啶盐和咪唑并[1,2- a ]吡啶在水相中发生自由基反应的理想介质。带正电荷的N-氨基吡啶鎓与带负电荷的胶束表面之间的静电相互作用在该方法中具有重要意义。