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Phosphine-Ionic Liquid Organic Copolymer Heterogeneous Catalyst and Its Preparation and Application

A technology of heterogeneous catalysts and ionic liquids, applied in organic compound/hydride/coordination complex catalysts, physical/chemical process catalysts, organic chemistry, etc., can solve problems such as difficult product separation and purification, and achieve high stability, Separation of simple, efficient and highly active effects

Active Publication Date: 2020-06-19
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above catalytic system requires the addition of quaternary ammonium salt cocatalysts, resulting in difficulties in product separation and purification.

Method used

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  • Phosphine-Ionic Liquid Organic Copolymer Heterogeneous Catalyst and Its Preparation and Application
  • Phosphine-Ionic Liquid Organic Copolymer Heterogeneous Catalyst and Its Preparation and Application
  • Phosphine-Ionic Liquid Organic Copolymer Heterogeneous Catalyst and Its Preparation and Application

Examples

Experimental program
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Effect test

Embodiment 1

[0045] Under 298K and inert gas protection atmosphere, 10.0 grams of Vinyl-PPh 3 Monomer (attached figure 1 , L1) was dissolved in 100.0mL tetrahydrofuran solvent, while adding 2.0g divinylimidazole (attached figure 2 , M1), 1.0 g of free radical initiator azobisisobutyronitrile was added to the above solution, and stirred for 2 hours. The stirred solution was moved to an autoclave, and polymerized by solvothermal polymerization at 373K and an inert gas atmosphere for 24 hours. After the solution after the above polymerization is cooled to room temperature, the solvent is vacuumed off at room temperature, and the Vinyl-PPh 3 Organic porous polymer copolymerized with divinylimidazole organic monomer. image 3 It is a schematic diagram of the aggregation technology route. Weigh 1 gram of ZnCl 2 Dissolve in 10.0mL of toluene solvent, add 10.0 grams of the organic copolymer prepared above, stir the mixture at 298K and an inert gas protection atmosphere for 24h, and then vacu...

Embodiment 2

[0047] In embodiment 2, in addition to weighing 10.0 grams of comonomer Vinyl-Biphephos monomer (attached figure 1 , L2), instead of Vinyl PPh 3 Monomer, all the other catalyst synthesis processes are the same as in Example 1.

Embodiment 3

[0049] In embodiment 3, in addition to weighing 2.0 grams of divinyl benzimidazole monomer (attached figure 2 , M4), instead of divinylimidazole monomer, the rest of the catalyst synthesis process is the same as in Example 1.

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Abstract

The invention provides a heterogeneous catalyst containing a phosphine-ionic liquid organic porous copolymer and its preparation and application. The phosphine-ionic liquid organic porous copolymer is copolymerized by an olefin-functionalized organic phosphine ligand and an alkene-functionalized ionic liquid Adding or not adding Lewis acidic metal salt, when adding Lewis acidic metal salt, the metal ion in the metal salt forms a coordination bond with the exposed phosphine in the organic porous copolymer, and finally obtains a heterogeneous catalyst. This type of catalyst is suitable for fixed bed, slurry bed, tank reactor and trickle bed reactors. Catalyst provided by the invention is applied in the coupling reaction technology of epoxy compound and carbon dioxide, integrated the respective advantages of ionic liquid (as ring-opening nucleophile) and phosphine-metal coordination compound (activated epoxy compound), by adjusting By varying the comonomer ratio and metal loading, the obtained catalyst has the dual advantages of high activity and high stability.

Description

technical field [0001] The field of the invention belongs to the field of heterogeneous catalysis, and specifically relates to a phosphine-ionic liquid organic copolymer heterogeneous catalyst and its preparation and application, and can be specifically applied to the coupling reaction of carbon dioxide and epoxy compounds. Background technique [0002] The design and synthesis of porous organic polymer materials has gradually become one of the new hotspots in the field of porous materials research. Compared with traditional inorganic microporous materials and metal-organic frameworks (MOFs), the framework of organic microporous polymers is composed of pure organic molecules, which are connected to each other by covalent bonds, and have open channels and excellent pore structures. . More importantly, due to the diversity of organic chemical synthesis methods, it provides a wealth of synthetic routes and construction methods for the construction of organic molecular networks...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J31/06B01J35/10C08F230/02C08F226/06C08F212/36C07D317/38
Inventor 丁云杰汪文龙李存耀严丽
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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