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Triphenylphosphine polymer supported catalyst and preparation method thereof

A technology of supported catalyst and triphenylphosphine, which is applied in the field of phosphine-containing porous organic polymer supported catalyst and its preparation, which can solve the problems of fixed structure and performance, achieve high stereoselectivity and improve utilization efficiency

Pending Publication Date: 2022-05-27
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 structure and performance of traditional triphenylphosphine polymers are fixed, and the catalytic performance can only be adjusted by changing the loading amount or doping additives.

Method used

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  • Triphenylphosphine polymer supported catalyst and preparation method thereof
  • Triphenylphosphine polymer supported catalyst and preparation method thereof
  • Triphenylphosphine polymer supported catalyst and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Under a nitrogen atmosphere at 298K, 5.0 g of L2 and 5.0 g of L1 were mixed and dissolved in 100 mL of tetrahydrofuran. 1.0 g of free radical initiator azobisisobutyronitrile was added to the above solution and stirred for 2 hours. The stirred solution was transferred to an autoclave and polymerized by solvothermal polymerization at 373K under nitrogen protection atmosphere for 24h. After the above-mentioned polymerized solution is cooled to room temperature, the solvent is vacuumed away at room temperature to obtain a triphenylphosphine mixed polymer carrier. 6.28 mg of rhodium acetylacetonate dicarbonyl was weighed and dissolved in 100.0 ml of tetrahydrofuran solvent, 1.0 g of an organic polymer carrier was added, and the mixture was stirred at 298K under a nitrogen atmosphere for 24 hours, and then the solvent was vacuumed off at room temperature, That is, the catalyst is obtained. The resulting catalyst has a total pore volume of 2.20 cm 3 / g, the proportion of me...

Embodiment 2

[0036]In Example 2, the rest of the catalyst synthesis process was the same as that in Example 1, except that 0.1 g of the radical initiator azobisisobutyronitrile was weighed instead of 1.0 g of the radical initiator azobisisobutyronitrile. The resulting catalyst has a total pore volume of 2.17 cm 3 / g, the proportion of mesopores is 62%.

Embodiment 3

[0038] In Example 3, except that 50.0 ml of tetrahydrofuran solvent was used instead of 100.0 ml of tetrahydrofuran solvent, the rest of the catalyst synthesis process was the same as that of Example 1. The resulting catalyst has a total pore volume of 2.19 cm 3 / g, the proportion of mesopores is 61%.

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Abstract

The invention discloses a preparation method of a triphenylphosphine polymer self-supported heterogeneous catalyst with an adjustable structure and performance, and the heterogeneous catalyst takes one or more of metals Rh, Ru, Ir, Co and Pd as active components, and takes a phosphine-containing porous organic polymer with a hierarchical pore structure as a carrier. The phosphine-containing organic polymer is formed by polymerizing vinyl functionalized triphenylphosphine. The coordination bond type heterogeneous catalyst is suitable for reactors such as a fixed bed, a slurry bed, a bubbling bed and a trickle bed. The heterogeneous catalyst provided by the invention has the characteristics of controllable structure and catalytic performance, good stability and easy separation and recovery.

Description

technical field [0001] The invention belongs to the field of heterogeneous catalysis and fine chemical industry, and particularly relates to a type of phosphine-containing porous organic polymer supported catalyst and a preparation method thereof. Background technique [0002] In recent years, porous organic polymers have been widely used in gas storage, energy storage, catalysis and other fields due to their high specific surface area, hierarchical pore structure, and good thermal stability. Porous organic ligands, as representatives of porous organic polymers, have great application potential in the field of heterogeneous catalysis. [0003] By modifying the structure of homogeneous organic ligands and introducing vinyl groups into the ligand molecules, the porous organic ligands prepared by solvothermal polymerization have high specific surface area, hierarchical pore structure, excellent thermal stability and high density. The coordinating atoms are exposed in the polym...

Claims

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Application Information

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IPC IPC(8): B01J31/24B01J35/10C07C45/50C07C47/02
CPCB01J31/2404B01J31/1691C07C45/505B01J2531/822B01J2531/827B01J2231/321B01J35/618B01J35/617B01J35/643B01J35/638B01J35/635B01J35/633B01J35/647B01J35/615C07C47/02Y02P20/584
Inventor 严丽姬广军丁云杰李存耀程显波
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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