Palladium-Catalyzed Oxidative Heck Coupling of Vinyl Pyridines with Aryl Boronic Acids
作者:Shanshan Chen、Xiuli Zhang、Mingjie Chu、Xiaoping Gan、Xianhai Lv、Jie Yu
DOI:10.1055/s-0034-1379994
日期:——
An efficient methodology has been developed for the oxidative cross-coupling of vinyl pyridine with various boronic acids catalyzed by palladium. In this reaction, vinyl pyridines reacted with various aryl boronic acids in the presence of 10 mol% palladium(II) trifluoroacetate, 10 mol% 1,10- phenanthroline, and 1 equivalent silver(I) oxide, to give the corresponding aryl vinyl pyridine products as
已经开发了一种有效的方法,用于在钯催化下乙烯基吡啶与各种硼酸的氧化交叉偶联。在该反应中,乙烯基吡啶与各种芳基硼酸在 10 mol% 三氟乙酸钯 (II)、10 mol% 1,10-菲咯啉和 1 当量氧化银 (I) 存在下反应,得到相应的芳基乙烯基吡啶产品为单一立体异构体,以 N,N-二甲基甲酰胺为溶剂,在 1 个大气压的氧气下。24小时后以中等至良好的产率获得芳基乙烯基吡啶产物。提出了反应机理。