An efficient palladium-catalyzed synthesis of 1-heteroaryl-4-aminopiperidine derivatives from heteroaryl chlorides
作者:Kena Zhang、Hui Li、Jingya Li、Dapeng Zou、Yangjie Wu、Yusheng Wu
DOI:10.1016/j.tetlet.2017.04.014
日期:2017.5
protocol for the synthesis of 1-heteroaryl-4-(N-methyl)aminopiperidines starting from heteroaryl chloride derivatives is described. A broad range of 1-heteroaryl-4-(N-Boc-N-methyl)aminopiperidine derivatives were obtained in good to excellent yields using DavePhos as optimal ligand for Pd-catalyzed Buchwald-Hartwig amination reaction. After a mild and efficient acidolysis the amination products could
描述了一种从杂芳基氯衍生物开始合成1-杂芳基-4-(N-甲基)氨基哌啶的有效方案。使用DavePhos作为Pd催化的Buchwald-Hartwig胺化反应的最佳配体,可以以良好或优异的收率获得多种1-杂芳基-4-(N -Boc- N-甲基)氨基哌啶衍生物。经过温和有效的酸解后,可以成功获得胺化产物。