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Phosphine-ionic liquid organic porous copolymer-containing heterogeneous catalyst, preparation method and applications thereof

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, The effect of improving catalytic activity and high activity

Active Publication Date: 2018-01-05
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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 porous copolymer-containing heterogeneous catalyst, preparation method and applications thereof
  • Phosphine-ionic liquid organic porous copolymer-containing heterogeneous catalyst, preparation method and applications thereof
  • Phosphine-ionic liquid organic porous copolymer-containing heterogeneous catalyst, preparation method and applications thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Under 298K and inert gas atmosphere, 10.0 g Vinyl-PPh 3 single (with figure 1 , L1) was dissolved in 100.0 mL of tetrahydrofuran solvent, and 2.0 g of divinylimidazole (attached with figure 2 , M1), add 1.0 g of free radical initiator azobisisobutyronitrile to the above solution, and stir for 2 hours. The stirred solution was transferred to an autoclave, and was polymerized by solvothermal polymerization at 373K under the protective atmosphere of inert gas for 24h. After the above-mentioned polymerization, the solution was cooled to room temperature, and the solvent was vacuum pumped away at room temperature to obtain Vinyl-PPh. 3 Organic porous polymers copolymerized with divinylimidazole organic monomers. image 3 It is a schematic diagram of the polymerization technology route. Weigh 1 g of ZnCl 2 Dissolve in 10.0 mL of toluene solvent, add 10.0 g of the organic copolymer prepared above, stir the mixture at 298K and inert gas protective atmosphere for 24 h, and...

Embodiment 2

[0047] In Example 2, in addition to weighing 10.0 grams of comonomer Vinyl-Biphephos monomer (attached figure 1 , L2), replaces Vinyl PPh 3 Monomer, and the rest of the catalyst synthesis process was the same as in Example 1.

Embodiment 3

[0049] In Example 3, in addition to weighing 2.0 g of divinylbenzimidazole 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 present invention provides a phosphine-ionic liquid organic porous copolymer-containing heterogeneous catalyst, a preparation method and applications thereof, wherein an olefin-functionalized organic phosphine ligand and an olefin-functionalized ion liquid are co-polymerized to form a phosphine-ionic liquid organic porous copolymer, a Lewis acid metal salt is added or is not added, and when the Lewis acid metal salt is added, the metal ions in the metal salt and the naked phosphine in the organic porous copolymer form a coordination bond so as to finally obtain the heterogeneous catalyst.According to the present invention, the catalyst can be used in fixed beds, slurry beds, tank reactors, trickle beds and other reactors; with the application of the catalyst of the present invention in the coupling reaction process of epoxy compounds and carbon dioxide, the respective advantages of the ion liquid (as the ring-opening nucleophilic reagent) and the phosphine-metal coordination compound (activated epoxy compound) are integrated; and by adjusting and changing the copolymerization monomer proportion and the metal loading amount, the obtained catalyst has the double advantages of extremely high activity and high stability.

Description

technical field [0001] The field of the invention belongs to the field of heterogeneous catalysis, and in particular relates to a phosphine-containing-ionic liquid organic copolymer heterogeneous catalyst and its preparation and application, which 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 with each other by covalent bonds, with open channels and excellent pore structure. . More importantly, due to the diversity of organic chemical synthesis methods, it provides rich synthetic pathways and construction methods for the construction of organic molecular ne...

Claims

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Application Information

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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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