A PdâCu-cocatalyzed coupling reaction of quinazoline-4-tosylates with terminal alkynes using N-heterocyclic carbenes (NHC) as ligands is described, providing 4-alkynylquinazolines in good to excellent yields. This transformation proceeds under mild conditions with high efficiency, which is attractive for focused compound library construction.
描述了一种以Pd-Cu为共催化剂的反应,将
喹唑啉-4-
磺酸酯与末端
炔烃在N-杂环卡宾(NHC)作为
配体的条件下结合,生成4-炔基
喹唑啉,产率良好至优异。该转化在温和条件下进行,效率高,这对于专注的化合物库构建具有吸引力。