Large-Scale Preparation of Aromatic Fluorides via Electrophilic Fluorination with Functionalized Aryl- or Heteroarylmagnesium Reagents
作者:Paul Knochel、Shigeyuki Yamada
DOI:10.1055/s-0029-1218816
日期:2010.7
Functionalized aryl- or heteroarylmagnesium reagents, prepared from the corresponding bromides or iodides using halogen-magnesium exchange or direct magnesium insertion in the presence of lithium chloride, reacted smoothly with N-fluorobenzenesulfonimide, (PhSO2)2NF, in the mixed solvent (4:1 CH2Cl2-perfluorodecalin) to give the corresponding aromatic fluorides in moderate to good yields. arenes - electrophilic
在氯化锂的存在下,由相应的溴化物或碘化物使用卤素-镁交换或直接插入镁制得的功能化芳基或杂芳基镁试剂,在混合溶剂中与N-氟苯磺酰亚胺(PhSO 2)2 NF平稳反应(4 ∶1 CH 2 Cl 2-全氟萘烷),以中等至良好的产率得到相应的芳族氟化物。 芳烃-亲电取代-氟化-格氏试剂-杂芳族化合物