Electric Literature of 224311-51-7, Children learn through play, and they learn more than adults might expect. Science experiments are a great way to spark their curiosity, get their minds active, and encourage them to do something that doesn’t involve a screen. 224311-51-7, C20H27P. A document type is Article, introducing its new discovery.
A preliminary study of the catalytic behavior of bis(beta-ketiminate) nickel(II) and cobalt(II) complexes in the dimerization of propylene was undertaken in combination with organoaluminum co-catalyst and ancillary phosphine ligand. The effects of type and relative amounts of aluminum co-catalyst as well as the nature of nickel and cobalt precatalysts were investigated. The results showed that the presence of ancillary phosphine ligand deeply modified the activity and selectivity of catalytic system, especially at the reaction temperature below 0C. An extremely high turnover frequency up to 268,000h-1 and a rather high selectivity to dimers (95.6%) by the bis(N-(2,6-dimethylphenyl)-4-aminopent-3-en-2-ono) nickel(II) complex (1c) in the presence of Et3Al2Cl3 and PCy3 was achieved in the propylene dimerization under appropriate reaction conditions.
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Phosphine ligand,
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate