Extremely Active Ethylene Tetramerization Catalyst Avoiding the Use of Methylaluminoxane: [iPrN{P(C 6 H 4 ‐ p ‐SiR 3 ) 2 } 2 CrCl 2 ] + [B(C 6 F 5 ) 4 ] −

ChemCatChem ◽  
2019 ◽  
Vol 11 (17) ◽  
pp. 4351-4359 ◽  
Author(s):  
Hee Soo Park ◽  
Tae Hee Kim ◽  
Jun Won Baek ◽  
Hyun Ju Lee ◽  
Tae Jin Kim ◽  
...  
Keyword(s):  
Ethylene Tetramerization

A Highly Selective Ethylene Tetramerization Catalyst

2012 ◽  
Vol 51 (6) ◽  
pp. 1366-1369 ◽  
Author(s):  
Yacoob Shaikh ◽  
Khalid Albahily ◽  
Matthew Sutcliffe ◽  
Valeria Fomitcheva ◽  
Sandro Gambarotta ◽  
...  
Keyword(s):  
Ethylene Tetramerization

scholarly journals Isotopic labelling in ethylene oligomerization: addressing the issue of 1-octene vs. 1-hexene selectivity

2019 ◽  
Vol 48 (1) ◽  
pp. 40-44 ◽  
Author(s):  
Nathanael A. Hirscher ◽  
Jay A. Labinger ◽  
Theodor Agapie
Keyword(s):  
Isotopic Labeling ◽  
Ethylene Oligomerization ◽  
Isotopic Labelling ◽  
Ethylene Tetramerization

The selectivity-determining mechanistic steps of ethylene tetramerization and trimerization are evaluated in light of isotopic labeling experiments.

Ethylene Tetramerization:  A New Route to Produce 1-Octene in Exceptionally High Selectivities

2004 ◽  
Vol 126 (45) ◽  
pp. 14712-14713 ◽  
Author(s):  
Annette Bollmann ◽  
Kevin Blann ◽  
John T. Dixon ◽  
Fiona M. Hess ◽  
Esna Killian ◽  
...  
Keyword(s):  
Ethylene Tetramerization

Ethylene Tetramerization Catalysis: Effects of Aluminum-Induced Isomerization of PNP to PPN Ligands

2017 ◽  
Vol 36 (8) ◽  
pp. 1640-1648 ◽  
Author(s):  
Alejo M. Lifschitz ◽  
Nathanael A. Hirscher ◽  
Heui Beom Lee ◽  
Joshua A. Buss ◽  
Theodor Agapie
Keyword(s):  
Ethylene Tetramerization

Chromium-Based Catalyst for Ethylene Tetramerization to 1-Octene

2011 ◽  
Vol 347-353 ◽  
pp. 3392-3395
Author(s):  
Bao Jun Zhang ◽  
Bu Wei Yu ◽  
Gang Wang ◽  
Jian Zhong Li ◽  
Si Han Wang ◽  
...  
Keyword(s):  
Catalyst System ◽  
Ethylene Oligomerization ◽  
Steric Effects ◽  
Molar Ratio ◽  
Ethylene Tetramerization ◽  
Electric Effects

Novel diphoshinoamine(PNRNP) ligands have been used in ethylene oligomerization with Cr(III) compounds and cocatalyst. The results indicate that the catalyst system can yield 1-octene in selectivities up to 80%. Another novel diphoshinoamine ligands (((Ar2P)2N)2R)(R=cyclopropylamine) also were synthesized and characterized. Factors which affect the result of ethylene tetramerisation, such as cocatalyst, temperature, pressure and the molar ratio of Al/Cr were examined. Steric effects and electric effects were also considered in this report.

Synthesis of a novel triple-site diphosphinoamine (PNP) ligand and its applications in ethylene tetramerization

2008 ◽  
Vol 53 (22) ◽  
pp. 3511-3515 ◽  
Author(s):  
GuoLiang Mao ◽  
YingNan Ning ◽  
WenBo Hu ◽  
ShanMing Li ◽  
XianFeng Song ◽  
...  
Keyword(s):  
Ethylene Tetramerization

Characterization of Cr-Hydrocarbyl Species via Pulse EPR in the Study of Ethylene Tetramerization Catalysis

2020 ◽  
Vol 39 (24) ◽  
pp. 4420-4429
Author(s):  
Nathanael A. Hirscher ◽  
Charles H. Arnett ◽  
Paul H. Oyala ◽  
Theodor Agapie
Keyword(s):  
Ethylene Tetramerization ◽  
Pulse Epr

scholarly journals Ethylene tetramerization with a highly active and long-lifetime trinuclear diphenylphosphinoamine/Cr(III)/MAO catalyst

2012 ◽  
Vol 57 (13) ◽  
pp. 1510-1515 ◽  
Author(s):  
Tao Jiang ◽  
YiQing Tao ◽  
XiangLu Gao ◽  
GuoLiang Mao ◽  
HongXia Chen ◽  
...  
Keyword(s):  
Ethylene Tetramerization ◽  
Highly Active ◽  
Long Lifetime

Performance of various aluminoxane activators in ethylene tetramerization based on PNP/Cr(III) catalyst system

2007 ◽  
Vol 8 (7) ◽  
pp. 1145-1148 ◽  
Author(s):  
Tao Jiang ◽  
Xiaoyu Liu ◽  
Yingnan Ning ◽  
Hongxia Chen ◽  
Mingjian Luo ◽  
...  
Keyword(s):  
Catalyst System ◽  
Ethylene Tetramerization
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