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