Palladium(II)-catalyzed tandem intramolecular aminopalladation of alkynylanilines and conjugate addition for synthesis of 2,3-disubstituted indole derivatives
作者:Zengming Shen、Xiyan Lu
DOI:10.1016/j.tet.2006.08.086
日期:2006.11
synthesis of 2,3-disubstituted indoles with high selectivity from 2-ethynylaniline derivatives and α,β-unsaturated carbonyl compounds was developed. This Pd(II)-catalyzed reaction involves tandem intramolecular aminopalladation, olefin insertion and protonolysis of the carbon-palladium bond with the regeneration of Pd(II) species in the presence of halide ions.
开发了一种由2-乙炔基苯胺衍生物和α,β-不饱和羰基化合物高选择性合成2,3-二取代吲哚的有效方法。这种Pd(II)催化的反应涉及串联分子内氨基palpalation,烯烃插入和碳-钯键的质子分解以及在卤离子存在下Pd(II)物种的再生。