Pd-catalyzed copper-free carbonylative Sonogashira coupling reaction to synthesize alkynyl ketones from terminal alkynes and aryl iodides was achieved by using water as a solvent. The reaction was carried out at room temperature under balloon pressure of CO with Et3N as a base. The developed method was successfully applied to the synthesis of flavones.
钯催化的无
铜羰基化Sonogashira偶联反应,是通过用
水为溶剂,由末端
炔烃和芳基
碘化物合成炔基酮的。反应在室温下以Et 3 N为碱在CO的球囊压力下进行。所开发的方法已成功地应用于
黄酮的合成。