Palladium-Catalyzed Oxidative Heck Coupling Reaction for Direct Synthesis of 4-Arylcoumarins Using Coumarins and Arylboronic Acids
作者:Yaming Li、Zisong Qi、Huifeng Wang、Xinmei Fu、Chunying Duan
DOI:10.1021/jo202577m
日期:2012.2.17
An efficient protocol for the direct synthesis of 4-arylcoumarins via palladium-catalyzed oxidative Heck coupling reaction of coumarins and arylboronic acids was developed. 4-Arylcoumarins were obtained in moderate to excellent yields, and the reaction also showed tolerance toward functional groups such as hydro, methoxy, diethylamino, nitro, and chloro groups.
建立了一种通过钯催化香豆素和芳基硼酸的氧化Heck偶联反应直接合成4-芳基香豆素的有效方案。以中等至优异的产率获得了4-芳香豆素,并且该反应还显示出对官能团如氢,甲氧基,二乙氨基,硝基和氯基的耐受性。