PdCl2 combined with TBAF (n-Bu4NF) were found to be efficient conditions for the Heck reactions. In the presence of PdCl2 and TBAF, a variety of aryl halides were coupled with alkenes smoothly in moderate to good yields. Moreover, the PdCl2/TBAF system could be recovered and reused several times in the reaction. Note that these reactions are conducted under solvent-free, ligand-free and reusable conditions.
研究发现,PdCl2 与 TBAF(n-Bu4NF)结合是 Heck 反应的有效条件。在 PdCl2 和 TBAF 的存在下,各种芳基卤化物都能顺利地与烯烃发生偶联反应,产率从中等到良好不等。此外,PdCl2/TBAF 体系可在反应中多次回收和重复使用。请注意,这些反应是在无溶剂、无配体和可重复使用的条件下进行的。