Palladium-Catalyzed Decarboxylative Coupling of Alkynyl Carboxylic Acids with Benzyl Halides or Aryl Halides
作者:Wen-Wu Zhang、Xing-Guo Zhang、Jin-Heng Li
DOI:10.1021/jo1010284
日期:2010.8.6
synthesis of internal benzyl alkynes and 1,2-diarylalkynes has been developed via palladium-catalyzed decarboxylative coupling reactions of alkynyl carboxylic acids with benzyl chlorides or aryl halides. In the presence of Pd(OAc)2 and Xphos (L3), alkynyl carboxylic acids smoothly underwent the reaction with various benzyl halides, providing the corresponding benzyl alkynes in moderate to good yields. It
内部的苄基炔烃和1,2-二芳基炔烃的合成已经通过炔基羧酸与苄基氯或芳基卤化物的钯催化的脱羧偶联反应进行了开发。在Pd(OAc)2和Xphos(L3)的存在下,炔基羧酸与各种苄基卤化物平稳地反应,从而以中等至良好的收率提供了相应的苄基炔烃。值得注意的是,最佳条件与各种芳基卤化物(包括活性较低的芳基氯化物)相容。