New hetero-bimetallic Pd-Cu catalysts for the one-pot indole synthesis via the Sonogashira reaction
作者:Sandra Chouzier、Markus Gruber、Laurent Djakovitch
DOI:10.1016/j.molcata.2003.11.027
日期:2004.4
For the first time the one-pot indole synthesis catalyzed by new heterogeneous bimetallic [Pd-Cu] catalysts is described. Based on a domino reaction, 2-phenylindole was synthesized via the Sonogashira C–C coupling reaction with up to 100% yield in short reaction times. In all cases, a complete selectivity towards the indole compound is observed. The heterogeneous catalysts, while being deactivated
首次描述了由新型非均相双金属[Pd-Cu]催化剂催化的一锅吲哚合成。基于多米诺反应,通过Sonogashira C–C偶联反应合成了2-苯基吲哚,在较短的反应时间内产率高达100%。在所有情况下,观察到对吲哚化合物的完全选择性。非均相催化剂虽然在空气中的萃取过程中会失活,但当以连续方式使用时,仍保持高活性和选择性。