Direct C−H Bond Arylation: Selective Palladium-Catalyzed C2-Arylation of <i>N</i>-Substituted Indoles
作者:Benjamin S. Lane、Dalibor Sames
DOI:10.1021/ol0490072
日期:2004.8.1
We present a new, practical method by which N-substituted indoles may be selectively arylated in the C2-position with good yields, low catalyst loadings, and a high degree of functional group tolerance. Our investigation found that two competitive processes, namely, the desired cross-coupling and biphenyl formation, were operative in this reaction. A simple kinetic model was formulated that proved
我们提出了一种新的实用方法,通过该方法,N-取代的吲哚可以在C2位置选择性芳基化,具有良好的收率,较低的催化剂负载量和高度的官能团耐受性。我们的研究发现,两个竞争过程,即所需的交叉偶联和联苯形成,在该反应中起作用。建立了一个简单的动力学模型,该模型被证明具有指导意义,并为反应优化提供了有用的指导。在此描述的方法可能被证明在其他催化交叉偶联过程中很有用。