Ethylene oligomerization on nickel catalysts on a solid acid support: From New mechanistic insights to tunable bifunctionality
Sign Up to like & getrecommendations! Published in 2021 at "Applied Catalysis A: General"
DOI: 10.1016/j.apcata.2021.118296
Abstract: Abstract Light alkene oligomerization on heterogeneous acidic catalysts is widely and successfully used in current commercial processes. However, ethylene oligomerization remains inefficient due to ethylene’s inability to form reaction intermediates to a sufficient extent on… read more here.
Keywords: oligomerization; ethylene oligomerization; support; oligomerization nickel ... See more keywords
Production of bio-jet fuel through ethylene oligomerization using NiAlKIT-6 as a highly efficient catalyst
Sign Up to like & getrecommendations! Published in 2021 at "Fuel"
DOI: 10.1016/j.fuel.2020.119831
Abstract: Abstract This study investigated ethylene oligomerization as a pathway to produce bio-jet fuel from bioethanol using NiAlKIT-6 as the catalyst. NiAlKIT-6 was prepared from a sol–gel method with post-synthetic alumination, with Ni metal loaded using… read more here.
Keywords: fuel; using nialkit; ethylene oligomerization; catalyst ... See more keywords
Structural and ethylene oligomerization studies of chelated NˆO (imino/amino)phenol nickel(II) complexes
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Organometallic Chemistry"
DOI: 10.1016/j.jorganchem.2017.05.050
Abstract: Abstract Condensation reactions of 2-aminoethanol with the appropriate aldehyde gave ligands 2-[1-[(2-hydroxyethyl)imino]ethyl]phenol (L1) and 2-[(2-hydroxyethyl)imino] methyl]phenol (L2) respectively. Subsequent reductions of L1 and L2 with NaBH4 afforded the corresponding amine ligands 2-[1-[(2-hydroxyethyl)amino]ethyl]phenol (L3) and 2-{[(2-hydroxyethyl)amino]methyl}phenol… read more here.
Keywords: amino; imino; nickel complexes; phenol ... See more keywords
Revisiting the 2-imino-1,10-phenanthrolylmetal precatalyst in ethylene oligomerization: Benzhydryl-modified cobalt(II) complexes and their dimerization of ethylene
Sign Up to like & getrecommendations! Published in 2021 at "Polyhedron"
DOI: 10.1016/j.poly.2020.114865
Abstract: Abstract The ortho-benzhydryl substituted 2-imino-1,10-phenanthrolylcobalt(II) dichlorides Co1-Co8 have been prepared by the direct reaction of the corresponding compartmental ligands L1–L8 and cobalt(II) chloride with good yields. All the organic compounds (L1–L8) have been fully characterized… read more here.
Keywords: dimerization; imino; cobalt complexes; spectroscopy ... See more keywords
Identification of the structure of Ni active sites for ethylene oligomerization on an amorphous silica-alumina supported nickel catalyst
Sign Up to like & getrecommendations! Published in 2021 at "Chinese Journal of Catalysis"
DOI: 10.1016/s1872-2067(21)63827-5
Abstract: Abstract The structure of Ni active sites supported on amorphous silica-alumina supports with different contents of Al2O3 loadings in relation to their activities in ethylene oligomerization were investigated. Two kinds of Ni sites were detected… read more here.
Keywords: active sites; silica alumina; ethylene oligomerization; amorphous silica ... See more keywords
Chromium-Based Complexes Bearing N-Substituted Diphosphinoamine Ligands for Ethylene Oligomerization
Sign Up to like & getrecommendations! Published in 2022 at "ACS Omega"
DOI: 10.1021/acsomega.2c04733
Abstract: A range of novel N-substituted diphosphinoamine (PNP) ligands Ph2PN(R)PPh2 [R = F2CHCH2 (1); R = Me2CHCH2 (2); R = Me2CHCH2CH2 (3)] have been synthesized via one-step salt elimination reaction. The ligand-coordinated chromium carbonyls [Ph2PN(R)PPh2]Cr(CO)4 (4–6)… read more here.
Keywords: chromium based; substituted diphosphinoamine; ph2pn pph2; chromium ... See more keywords
Hyperbranched bisphosphinoamine ligands: synthesis, characterization and application in ethylene oligomerization
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Coordination Chemistry"
DOI: 10.1080/00958972.2017.1361531
Abstract: Abstract Two hyperbranched bisphosphinoamine (PNP) ligands and chromium complexes were synthesized in good yield with 1.0 generation (1.0 G) hyperbranched macromolecules, chlorodiphenylphosphine (Ph2PCl) and CrCl3(THF)3 as raw materials. The hyperbranched PNP ligands and chromium complexes… read more here.
Keywords: molar ratio; ethylene oligomerization; catalytic activity; hyperbranched bisphosphinoamine ... See more keywords
Anchoring via covalent binding of a salicylaldimine-nickel complex in multi-walled carbon nanotubes and its application in ethylene oligomerization
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Coordination Chemistry"
DOI: 10.1080/00958972.2020.1811241
Abstract: Abstract Silylated-salicylaldimine nickel(II) (1) was synthesized with 3-aminopropyl-trimethoxysilane, salicylaldimine and NiCl2·6H2O, and carbon nanotube-supported salicylaldimine-nickel catalyst (2) was synthesized by anchoring 1 covalently to multi-walled carbon nanotubes. The chemical structure of the synthesized ligand was… read more here.
Keywords: ethylene oligomerization; multi walled; walled carbon; salicylaldimine nickel ... See more keywords
The effect of phenolic compounds on salicylaldimine nickel-catalyzed ethylene oligomerization
Sign Up to like & getrecommendations! Published in 2019 at "Canadian Journal of Chemistry"
DOI: 10.1139/cjc-2018-0292
Abstract: A salen nickel complex has been prepared in good yield with ethylenediamine, salicylaldehyde, and NiCl2·6H2O as raw materials. The structure of the complex was characterized by FTIR, 1H NMR, UV, and ESI-MS. Upon activation with… read more here.
Keywords: effect phenolic; nickel catalyzed; phenolic compounds; ethylene oligomerization ... See more keywords
Ethylene (co) oligomerization using iminopyridyl Ni(II) and Pd(II) complexes bearing benzocycloalkyl moieties to access hyperbranched ethylene oligomers and ethylene-MA co-oligomers
Sign Up to like & getrecommendations! Published in 2022 at "Frontiers in Chemistry"
DOI: 10.3389/fchem.2022.961426
Abstract: Hyperbranched ethylene oligomers and polar functionalized co-oligomers synthesized via ethylene chain walking (co) oligomerization is a very attractive strategy. In this study, a series of dibenzhydryl iminopyridyl ligands with benzocycloalkyl and naphthyl moieties and the… read more here.
Keywords: oligomers ethylene; oligomerization; ethylene oligomers; hyperbranched ethylene ... See more keywords