Supercharge Your Innovation With Domain-Expert AI Agents!

Binuclear nitrogen-containing ligand IVB transition metal complex and application thereof in olefin high-temperature polymerization

A complex and IVB group technology, applied in the field of binuclear nitrogen-containing ligand IVB transition metal complexes and their high-temperature polymerization of olefins, can solve the problems of catalyst instability and catalyst structure destruction

Active Publication Date: 2021-12-21
惠生(中国)投资有限公司
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Since [(((Mes)NCH 2 CH 2 ) 2 NR)ZrMe 2 ] (Mes is a substituted aryl group, R is H or methyl) When R is H, it is easy to react with the co-catalyst in the process of olefin polymerization, thereby destroying the catalyst structure. The situation is also unstable

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Binuclear nitrogen-containing ligand IVB transition metal complex and application thereof in olefin high-temperature polymerization
  • Binuclear nitrogen-containing ligand IVB transition metal complex and application thereof in olefin high-temperature polymerization
  • Binuclear nitrogen-containing ligand IVB transition metal complex and application thereof in olefin high-temperature polymerization

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0037] The second aspect of the present invention provides a method for preparing the complex provided by the first aspect of the present invention, comprising: combining an organic ligand with Mt(X) 4 Reaction, to provide the complex shown in formula (I).

[0038] Wherein, the chemical structure of organic ligand is as shown in formula (II):

[0039]

[0040] In formula (II), Mt is selected from IVB group metals, preferably, IVB group metals are selected from Ti, Zr or Hf; R 1 , R 2 , R 3 , R 4 , R 5 each independently selected from hydrogen, halogen, benzyl, linear, or branched C 1 ~C 6 the alkyl group; R 6C selected from straight chain or branched chain 1 ~C 10 Alkylene or C 3 ~C 10 of cycloalkylenes.

[0041] Mt(X) 4 In, X is selected from halogen, benzyl, linear or branched C 1 ~C 6 of alkyl.

[0042] In a specific embodiment, when X is selected from benzyl, the organic ligand shown in formula (II) can be combined with Mt(CH 2 Ph) 4 Reaction, to provi...

Embodiment 1

[0074] The synthetic steps of embodiment 1 C4

[0075] The synthetic route of C4 is as follows:

[0076]

[0077] 1) Ligand [(2,4,6-Me 3 C 6 h 2 ) NCH 2 CH 2 ] 2 N(CH 2 ) 4 N[CH 2 CH 2 N(2,4,6-Me 3 C 6 h 2 )] 2 (L4)synthesis

[0078] C4 bridged bisdiamine compound [HNCH 2 CH 2 ] 2 N(CH 2 ) 4 N[CH 2 CH 2 NH] 2 (a4) Synthetic method references (Inorg. Chem. 1992, 31, 3636-3646). Under nitrogen protection, a4 (3.13g, 12.0mmol), 2-bromo-mesitylene (10.90g, 48.0mol), tris(dibenzylideneacetone)dipalladium (0.11g, 0.12 mmol), rac-2,2′-bis(diphenylphosphine)-1,1′-binaphthyl (racemic BINAP) (0.22g, 0.36mmol), sodium tert-butoxide (6.92g, 42.0 mmol), and toluene (100 mL). While stirring, the temperature was raised to 100°C. Continue to react for 18h. The solvent was dried under vacuum, and the residue was dissolved in ether (90 mL), washed with water (3×25 mL), washed with saturated NaCl solution (18 g NaCl dissolved in 50 mL water), and dried by adding anh...

Embodiment 2

[0081] The synthetic steps of embodiment 2 C5

[0082] The synthetic route of C5 is as follows:

[0083]

[0084] 1) Ligand [(2,4,6-Me 3 C 6 h 2 ) NCH 2 CH 2 ] 2 N(CH 2 ) 5 N[CH 2 CH 2 N(2,4,6-Me 3 C 6 h 2 )] 2 (L5)synthesis

[0085] C5 bridged bisdiamine compound [HNCH 2 CH 2 ] 2 N(CH 2 ) 5 N[CH 2 CH 2 NH] 2 (a5) Synthetic method references (Inorg. Chem. 1992, 31, 3636-3646). Under nitrogen protection, a5 (3.29g, 12.0mmol), 2-bromo-mesitylene (10.90g, 48.0mol), tris(dibenzylideneacetone)dipalladium (0.11g, 0.12 mmol), rac-2,2′-bis(diphenylphosphine)-1,1′-binaphthyl (racemic BINAP) (0.22g, 0.36mmol), sodium tert-butoxide (6.92g, 42.0 mmol), and toluene (100 mL). While stirring, the temperature was raised to 100°C. Continue to react for 18h. The solvent was dried under vacuum, the residue was dissolved in ether (90 mL), washed with water (3×25 mL), washed with saturated NaCl solution (18 g NaCl dissolved in 50 mL water), and dried by adding anhydro...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to the field of organic chemistry, in particular to a binuclear nitrogen-containing ligand IVB transition metal complex and application thereof in olefin high-temperature polymerization. The chemical structure of the complex is as follows: the steric configuration of the complex is stable, two tridentate nitrogen ligands are bridged through alkylene or cycloalkylene, and the interaction of the bridging group and two metallocene centers improves the polymerization activity of an ethylene / alpha-olefin solution at high temperature and the insertion rate of a comonomer.

Description

technical field [0001] The invention relates to the field of organic chemistry, in particular to a dinuclear nitrogen-containing ligand IVB transition metal complex and its application in high-temperature polymerization of olefins. Background technique [0002] The metallocene polyolefin catalyst refers to a transition metal organic compound containing cyclopentadienyl or its derivatives. Since Kaminsky discovered MAO in the late 1970s, metallocenes have received great attention in both academia and industry. Due to their unique molecular tailoring ability and excellent copolymerization performance, metallocene catalysts have achieved great success in commercial polyolefins. , Widely used in gas phase, slurry and solution polyolefin units. Based on the metallocene catalyst structure has been basically covered by patent protection, since the 1990s, non-metallocene catalysts began to gain attention. Gibson reviewed a variety of non-metallocene catalysts containing multidenta...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C07F7/00C08F210/16C08F210/08C08F4/64
CPCC07F7/00C08F210/16C08F210/08C08F4/64148Y02P20/52
Inventor 孙天旭宁力源
Owner 惠生(中国)投资有限公司
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com