作者:Enrico T. Nadres、Anna Lazareva、Olafs Daugulis
DOI:10.1021/jo1018969
日期:2011.1.21
The palladium-catalyzed direct arylation of indoles, pyrroles, and furans by aryl chlorides has been demonstrated. The method employs a palladium acetate catalyst, 2-(dicyclohexylphosphino)-biphenyl ligand, and an inorganic base. Electron-rich and electron-poor aryl chlorides as well as chloropyridine coupling partners can be used, and arylated heterocycles are obtained in moderate to good yields.
钯催化的吲哚、吡咯和呋喃由芳基氯化物直接芳基化已得到证实。该方法使用乙酸钯催化剂、2-(二环己基膦)-联苯配体和无机碱。可以使用富电子和缺电子的芳基氯化物以及氯吡啶偶联伙伴,并以中等至良好的产率获得芳基化杂环。要获得最佳结果,需要优化碱、配体和溶剂。