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。