Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Preparation method and application of biphenyl aromatic compound-substituted nickel phosphosulfonate complex

A technology of aromatic compounds and nickel complexes, applied in the direction of nickel organic compounds, etc., can solve the problems of low insertion ratio, low copolymer molecular weight, low activity, etc., and achieve the effect of high insertion ratio, high copolymer molecular weight, and high activity

Inactive Publication Date: 2018-04-13
CHANGZHOU UNIV
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although there have been extensive studies on such catalysts, many catalysts exhibit low activity, low copolymer molecular weight, low insertion ratio

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
  • Preparation method and application of biphenyl aromatic compound-substituted nickel phosphosulfonate complex
  • Preparation method and application of biphenyl aromatic compound-substituted nickel phosphosulfonate complex
  • Preparation method and application of biphenyl aromatic compound-substituted nickel phosphosulfonate complex

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Synthesis of 2-((2-(2,6-dioxoisopropylphenyl)phenyl)(phenyl)phosphino)benzenesulfonic acid

[0027]

[0028] Under the protection of nitrogen at 0°C, n-butyllithium (concentration: 2.5 mol per liter, 8 ml, 20 mmol) was slowly added dropwise to 25 ml of tetrahydrofuran mixed solution dissolved with benzenesulfonic acid (1.58 g, 10 mmol) , reacted for 1 hour to obtain a reaction mixture. Then, the reacted mixture was added into 25 ml of tetrahydrofuran mixed solution dissolved with phenylphosphine dichloride (1.35 ml, 10 mmol) at 0° C., and reacted at room temperature for 2 hours to obtain mixed solution A.

[0029] 2-(2-Bromophenyl)-1,3-dioxocumene (3.49 g, 10 mmol) was dissolved in 20 ml of tetrahydrofuran under nitrogen protection and cooled to minus 78 ° C, and then n-butyl Lithium (concentration: 2.5 mol per liter, 4 ml, 10 mmol) was slowly added thereto, and reacted at minus 78° C. for 1 hour. The obtained lithium salt was added to the mixed solution A at minus...

Embodiment 2

[0032] Synthesis of 2-((2-(2,6-difluorophenyl)phenyl)(phenyl)phosphino)benzenesulfonic acid

[0033]

[0034]Under the protection of nitrogen at 0°C, n-butyllithium (concentration: 2.5 mol per liter, 8 ml, 20 mmol) was slowly added dropwise to 25 ml of tetrahydrofuran mixed solution dissolved with benzenesulfonic acid (1.58 g, 10 mmol) , reacted for 1 hour to obtain a reaction mixture. Then, the reacted mixture was added into 25 ml of tetrahydrofuran mixed solution dissolved with phenylphosphine dichloride (1.35 ml, 10 mmol) at 0° C., and reacted at room temperature for 2 hours to obtain mixed solution A.

[0035] 2-(2-Bromophenyl)-1,3-difluorobenzene (2.69 g, 10 mmol) was dissolved in 20 ml of tetrahydrofuran under the protection of nitrogen and the temperature was lowered to minus 78 ° C, then n-butyllithium (concentration 2.5 moles per liter, 4 milliliters, 10 mmoles) were slowly added therein, and reacted for 1 hour at minus 78°C. The obtained lithium salt was added t...

Embodiment 3

[0038] Synthesis of Nickel Complexes of 2-((2-(2,6-Dioxyisopropylphenyl)phenyl)(phenyl)phosphino)benzenesulfonate

[0039]

[0040] Catalyst (Ni-O i Pr)

[0041] Take a 100 ml Schlenk bottle and add 2-(2,6-dioxoisopropylphenyl)phenyl)(phenyl)phosphino)benzenesulfonic acid (534 mg, 1 mmol), sodium hydride (29 mg, 1.2 mmol) and 20 mL THF. After stirring at room temperature for 12 h, the resulting yellow solution was passed over celite and dried on a vacuum line. It was then dissolved in 20 mL of dichloromethane and added (PPh 3 ) 2 NiPhCl (694 mg, 1 mmol) was placed in a glove box and stirred at room temperature with a magnetic stirrer for 12 hours, and the resulting mixture was filtered through celite. The filtrate was vacuum-pumped to dry the solvent, and dried to obtain a yellow powder. Wash the powder with a 2:1 mixed solvent of n-hexane and toluene. A yellow solid (670 mg, 72%) was obtained.

[0042] 1H NMR (CDCl3, 400MHz): δ7.82-7.78(m, 2H), 7.69-7.66(m, 2H), 7....

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 specifically relates to a biphenyl aromatic compound-substituted nickel phosphosulfonate complex, and a preparation method and application thereof, belonging to the fields of catalysis and synthesis of high-molecular polyolefin materials. The nickel phosphosulfonate complex catalyst provided by the invention has high heat stability and activity in vinyl polymerization and can producelinear high-molecular-weight polyethylene. The nickel phosphosulfonate complex can also be used for copolymerization of ethylene and a plurality of polar norbornene monomers, has high activity, is capable of producing copolymers with high molecular weight and presents high intercalation ratio.

Description

technical field [0001] The invention belongs to the field of catalysis and the field of synthetic polymer polyolefin materials, and in particular relates to a nickel phosphine sulfonate complex substituted by a biphenyl aromatic compound and a preparation method and application thereof. Background technique [0002] Polyolefins have low prices and excellent physical properties, making them indispensable materials in today's society. In olefin polymerization, catalysts determine olefin polymerization behavior, polymer structure and properties, and polymer particle morphology. The development of olefin polymerization catalysts makes polyolefin products rich in variety and excellent in performance, and promotes the development of the whole polyolefin. One of the reasons for the rapid development of polyolefin materials is that it has excellent properties, such as good mechanical properties, thermal properties, processing properties, corrosion resistance, medical and hygienic p...

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): C07F15/04C08F110/02C08F210/02C08F4/70
CPCC07F15/04C08F110/02C08F210/02C08F232/08C08F2500/01C08F4/7031
Inventor 李为民宋广智连坤波王福周陈昶乐
Owner CHANGZHOU UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com