Rational Design of High-Performance Phosphine Sulfonate Nickel Catalysts for Ethylene Polymerization and Copolymerization with Polar Monomers
作者:Min Chen、Changle Chen
DOI:10.1021/acscatal.6b03394
日期:2017.2.3
palladium catalysts in olefin polymerization and copolymerization has evolved rapidly. In contrast, earth-abundant and low-cost nickel catalysts generally suffer from drawbacks that include low thermal stability and generation of low-molecular-weight polymers in the presence of polar monomers. By taking advantage of several design strategies, high-performance phosphine-sulfonate-based nickel catalysts were
Air-Stable Secondary Phosphine Oxide or Chloride (Pre)Ligands for Cross-Couplings of Unactivated Alkyl Chlorides
作者:Lutz Ackermann、Anant R. Kapdi、Carola Schulzke
DOI:10.1021/ol100658y
日期:2010.5.21
In situ generated and crystallographically well-defined, isolated palladium complexes derived from seven novel air-stable secondary phosphine oxides or chlorides enabled challenging Kumada−Corriu cross-couplings of unactivatedalkylchlorides bearing β-hydrogens and proved applicable to transformations of alkyl-substituted organometallics.