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.