Novel neutral arylnickel(II) phosphine catalysts containing 2-oxazolinylphenolato N–O chelate ligands for ethylene oligomerization and propylene dimerization

Coordination chemistry and applications of metal phenolates containing an oxazoline group

“…In a similar way, catalytic precursors Ni(Phox)(R)(PPh 3 ) (R = aryl group) can be synthesised via reaction of a Group 1 metal-Phox phenolate salt and an appropriate Ni-PPh 3 precursor complex (Zhao et al 2004b). Structurally analogous Pd materials, in addition to Pd(κ 2 -N,O-Phox)(η 3 -allyl) complexes, are also produced by such protocols (Yang et al 1993, Miller Brought .…”

Highly selective propylene dimerization catalyzed by C1‐symmetric zirconocene complexes

“…Typically, 2‐methyl‐1‐pentene is effectively produced (>90% in all products) at extremely high temperature and pressure with catalyst systems based on alkylaluminum . Considering the risk of the process, many efforts have been devoted to the single‐site transition metal catalysts, such as nickel, cobalt, iron or vanadium complexes with bis(imino)pyridine, diimine or phosphorus‐based chelating ligands, which are capable of catalyzing propylene dimerization under mild conditions. Unfortunately, as described in the literature, these complexes exhibit low selectivity towards a specific dimer, in most cases giving a mixture of hexenes, methyl pentenes and dimethyl butenes …”

Synthesis and Characterization of Iron, Cobalt, and Nickel Complexes Bearing Novel N,N‐Chelate Ligands and Their Catalytic Properties in Ethylene Oligomerization

“…Furthermore, late‐transition‐metal complexes could act as better candidates for ethylene oligomerization because of their facile β‐H elimination 11. Many neutral and cationic late‐transition‐metal complexes with chelate ligands have been successfully applied in the field of olefin oligomerization 12,13.…”