Synthesis of Phosphine Ligands Based on 5-Amino-o-cresol and Its Application in Ethylene Oligomerization

2018 ◽  
Vol 38 (3) ◽  
pp. 698
Author(s):  
Zhichao Feng ◽  
Guoliang Mao ◽  
Wei Wu ◽  
Mingjian Luo ◽  
Yang Liu
Keyword(s):  
Phosphine Ligands ◽  
Ethylene Oligomerization

scholarly journals Selective Ethylene Oligomerization with Chromium Complexes Bearing Pyridine–Phosphine Ligands: Influence of Ligand Structure on Catalytic Behavior

2014 ◽  
Vol 33 (20) ◽  
pp. 5749-5757 ◽  
Author(s):  
Yun Yang ◽  
Joanna Gurnham ◽  
Boping Liu ◽  
Robbert Duchateau ◽  
Sandro Gambarotta ◽  
...  
Keyword(s):  
Phosphine Ligands ◽  
Ethylene Oligomerization ◽  
Chromium Complexes ◽  
Catalytic Behavior ◽  
Ligand Structure

Evaluation of Bis(phosphine) Ligands for Ethylene Oligomerization: Discovery of Alkyl Phosphines as Effective Ligands for Ethylene Tri- and Tetramerization

2020 ◽  
Vol 39 (7) ◽  
pp. 967-975 ◽  
Author(s):  
Scott D. Boelter ◽  
Dan R. Davies ◽  
Kara A. Milbrandt ◽  
David R. Wilson ◽  
Molly Wiltzius ◽  
...  
Keyword(s):  
Phosphine Ligands ◽  
Ethylene Oligomerization

Ruthenium(II) Complexes with N-Heterocyclic Carbene-Phosphine Ligands for the N-Alkylation of Amines with Alcohols

2021 ◽  
Author(s):  
Ming Huang ◽  
Yinwu Li ◽  
Xiao-Bing Lan ◽  
Jiahao Liu ◽  
Cunyuan Zhao ◽  
...  
Keyword(s):  
Metal Hydride ◽  
Phosphine Ligands ◽  
Hydride Complexes ◽  
Borrowing Hydrogen ◽  
Hydrogen Autotransfer

Metal hydride complexes are key intermediates for N-alkylation of amines with alcohols by borrowing hydrogen/hydrogen autotransfer (BH/HA) strategy. Reactivity tuning of metal hydride complexes could adjust the dehydrogenation of alcohols...

scholarly journals Efficient photorelease of carbon monoxide from a luminescent tricarbonyl rhenium(i) complex incorporating pyridyl-1,2,4-triazole and phosphine ligands

2021 ◽  
Author(s):  
Ángel D. Hernández Mejías ◽  
Alexandre Poirot ◽  
Meriem Rmili ◽  
Nadine Leygue ◽  
Mariusz Wolff ◽  
...  
Keyword(s):  
Carbon Monoxide ◽  
Colour Change ◽  
Phosphine Ligands

In this new Re(i) PhotoCORM, the efficient photoproduction of carbon monoxide is visualized through a strong colour change of the emitted phosphorescence.

Rhodium-Catalyzed, Phosphorus(III)-Directed Hydroarylation of Internal Alkynes: Facile and Efficient Access to New Phosphine Ligands

Synlett ◽  
2020 ◽  
Author(s):  
Minyan Wang ◽  
Zhuangzhi Shi ◽  
Huanhuan Luo ◽  
Dawei Wang
Keyword(s):  
High Selectivity ◽  
Enantiomeric Excess ◽  
Phosphine Ligands ◽  
Rapid Construction ◽  
Efficient Access ◽  
Internal Alkynes ◽  
Great Progress ◽  
Chiral Phosphine Ligands ◽  
Optimized Conditions ◽  
Made In

AbstractOrganophosphines are an important class of ligands widely used in organic chemistry. Although great progress has recently been made in the rapid construction of new phosphines through Rh- or Ru-catalyzed C–H bond functionalizations, synthetic access to more diverse phosphines remains a challenge. We describe an efficient process for the rhodium-catalyzed phosphorus(III)-directed hydroarylation of internal alkynes to generate various alkenylated and 2′,6′-dialkenylated biarylphosphines with high selectivity. A range of diverse alkynes and phosphines were effectively prepared with broad functional-group compatibility under the optimized conditions. In addition, the developed protocol can be extended to modify chiral phosphine ligands, providing enantioenriched alkenylated phosphines without erosion of the enantiomeric excess.

scholarly journals Cat-CrNP as new material with catalytic properties for 2-chloro-2-propen-1-ol and ethylene oligomerizations

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Jacek Malinowski ◽  
Dagmara Jacewicz ◽  
Artur Sikorski ◽  
Mariusz Urbaniak ◽  
Przemysław Rybiński ◽  
...  
Keyword(s):  
Complex Compound ◽  
Atmospheric Pressure ◽  
Room Temperature ◽  
Organometallic Compounds ◽  
Ethylene Oligomerization ◽  
High Catalytic Activity ◽  
New Material ◽  
Activity Requirement ◽  
Olefin Oligomerization ◽  
Xrd Method

AbstractThe contemporary search for new catalysts for olefin oligomerization and polymerization is based on the study of coordinating compounds and/or organometallic compounds as post-metallocene catalysts. However known catalysts are suffered by many flaws, among others unsatisfactory activity, requirement of high pressure or instability at high temperatures. In this paper, we present a new catalyst i.e. the crystalline complex compound possesing high catalytic activity in the oligomerization of olefins, such as 2-chloro-2-propen-1-ol and ethylene under very mild conditions (room temperature, 0.12 bar for ethylene oligomerization, atmospheric pressure for 2-chloro-2-propen-1-ol oligomerization). New material—Cat-CrNP ([nitrilotriacetato-1,10-phenanthroline]chromium(III) tetrahydrate) has been obtained as crystalline form of the nitrilotriacetate complex compound of chromium(III) with 1,10-phenanthroline and characterized in terms of its crystal structure by the XRD method and by multi-analytical investigations towards its physicochemical propeties The yield of catalytic oligomerization over Cat-CrNP reached to 213.92 g · mmol−1 · h−1· bar−1 and 3232 g · mmol−1 · h−1 · bar−1 for the 2-chloro-2-propen-1-ol and ethylene, respectively. Furthemore, the synthesis of Cat-CrNP is cheap, easy to perform and solvents used during preparation are environmentally friendly.

Ethylene oligomerization with 2-hydroxymethyl-5,6,7-trihydroquinolinyl-8-ylideneamine-Ni(II) chlorides

2021 ◽  
Vol 937 ◽  
pp. 121720
Author(s):  
Lei Xu ◽  
Jiaxin Li ◽  
Wenhua Lin ◽  
Yanping Ma ◽  
Xinquan Hu ◽  
...  
Keyword(s):  
Ethylene Oligomerization
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