2-a]pyridines in high to moderate yields by microwave direct palladium-catalyzed C-H alkenylation between bromoalkenes and imidazo[1,2-a]pyridines. The scope and limitation of the palladium(0)-catalyzed alkenylation method were investigated. Optimized conditions were successfully applied to a wide variety of imidazo[1,2-a]pyridine derivatives and bromoalkenes. The compatibility of the synthesis with
在本文中,我们介绍了通过微波直接
钯催化
溴代烯烃和
咪唑并[1,2-a]吡啶之间的CH 烯基化以高至中等收率合成3-烯基
咪唑并[1,2-a]
吡啶。研究了
钯(0)催化的烯基化方法的范围和局限性。优化的条件已成功应用于多种
咪唑并[1,2-a]
吡啶衍生物和
溴代烯烃。研究了在 6 位存在
氯取代基时合成的相容性。使用 Suzuki 交叉偶联条件对
6-氯咪唑并[1,2-a]吡啶进行官能化,得到多官能团化合物。