Monodentate aminophosphine nickel(II) ‐ and palladium(II)‐catalyzed ethylene oligomerization and norbornene polymerization

Nickel(II) and palladium(II) complexes of monodentate aminophosphine ligands have been explored for nickel ‐catalyzed tandem ethylene oligomerization/Friedel–Crafts alkylation of toluene and palladium‐catalyzed polymerization of norbornene. Nickel(II) and palladium(II) complexes of monodentate aminophosphine ligands were prepared and characterized. In ethylene oligomerization and subsequent Friedel –Crafts alkylation of toluene, the Ni(II) complexes Ni‐1 and Ni‐2 were activated with aluminium co‐catalysts and generated tandem catalysts with high activities (up to 1.1 × 106 g (mol Ni)−1 h−1) which are comparable with those of previously reported bidentate Ni(II) catalysts. The Pd(II) precatalyst Pd ‐1 showed high activities (up to 2.0 × 105 g (mol Pd)−1 h−1) in the polymerization of norbornene.

Source: Applied Organometallic Chemistry - October 31, 2018 Category: Chemistry Authors: Chunyong Rong, Weimin Li, Chen Tan Tags: FULL PAPER Source Type: research