Comparative Structural Analysis of Biarylphosphine Ligands in Arylpalladium Bromide and Malonate Complexes
作者:Anne-Sophie Goutierre、Huu Vinh Trinh、Paolo Larini、Rodolphe Jazzar、Olivier Baudoin
DOI:10.1021/acs.organomet.6b00535
日期:2017.1.9
The substitution of biarylphosphine ligands was shown to have a marked impact on the alpha/beta selectivity of the arylation of ester enolates. To get further insight into this effect, the solid-state structures of arylpalladium bromide and malonate complexes with four different biarylphosphine ligands were obtained by X-ray diffraction analysis. Structural differences were not very pronounced except for the conformationally restricted CPhos ligand, which showed a bidentate coordination mode in the oxidative addition complex, whereas the other ligands form dimeric species.