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Preparation and application of N-heterocyclic carbene gold porous organic polymer

A nitrogen heterocyclic carbene and polymer technology is applied in the field of preparation and application of porous organic polymers, which can solve the problems of unmaintained activity, long synthesis cycle, long preparation route, etc., and achieves short synthesis cycle, easy separation, and preparation technology. simple effect

Inactive Publication Date: 2018-11-16
EAST CHINA NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This new type of material called Nitrospirocarbon Carbenium (NPC) can be used for various applications such as gas purification or water treatment due its unique properties that include strong adhesion between molecules on their surfaces, ability to absorb light efficiently at certain wavelength ranges, ease of manufacturing, cost effectiveness, environmental friendliness, reusable materials, etc., which makes them ideal candidates for use in these fields.

Problems solved by technology

This patented technical problem addressed in this patent relates to finding new ways to make certain types of chemical compounds more efficiently without generating waste or causing harm during their production cycle due to the use of expensive metals such as platinum.

Method used

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  • Preparation and application of N-heterocyclic carbene gold porous organic polymer
  • Preparation and application of N-heterocyclic carbene gold porous organic polymer
  • Preparation and application of N-heterocyclic carbene gold porous organic polymer

Examples

Experimental program
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Effect test

Embodiment 1

[0018] Weigh 0.27g 1,3-bis(p-vinylbenzyl) imidazocarbene gold chloride (I) and 0.65g divinylbenzene (DVB) and dissolve in 27mg azobisisobutyronitrile (AIBN), and then Add 5mL of DMF, pre-polymerize and stir for 30min at room temperature, then react at 80°C for 24h, after the reaction, wash the filtrate three times with DMF and acetone, and then vacuum-dry to obtain 0.83g of azacyclic carbene gold porous organic polymers.

[0019] See attached figure 1 , the above product was characterized by scanning electron microscopy, and the obtained polymer was a particle packing material.

[0020] See attached figure 2 , the above product was measured by nitrogen adsorption-desorption isothermal characterization, and its specific surface area was 572m 2 g -1 , the pore volume is 0.54cm 3 g -1 .

Embodiment 2

[0022] Weigh 0.27g 1,3-bis(p-vinylbenzyl) imidazocarbene gold chloride (I) and 0.33g divinylbenzene (DVB) and dissolve in 27mg azobisisobutyronitrile (AIBN), and then Add 10mL of DMF, pre-polymerize and stir for 30min at room temperature, and then react at 80°C for 20h. After the reaction is completed, the filtrate is washed with DMF and acetone three times and then vacuum-dried to obtain 0.55g of the product. organic polymers.

Embodiment 3

[0024] Weigh 0.27g 1,3-bis(p-vinylbenzyl) imidazocarbene gold chloride (I) and 1.30g divinylbenzene (DVB) and dissolve in 50mg azobisisobutyronitrile (AIBN), and then Add 15mL of DMF, pre-polymerize and stir for 30min at room temperature, and then react at 80°C for 24h. After the reaction is completed, the filtrate is washed with DMF and acetone three times and then vacuum-dried to obtain 1.46g of the product. organic polymers.

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Abstract

The invention discloses preparation and application of an N-heterocyclic carbene gold porous organic polymer. The preparation has the characteristics as follows: alkenyl-functionalized 1,3-bis(p-vinylbenzyl) imidazole carbene gold monochloride (I) is subjected to a polymerization reaction with divinyl benzene, azodiisobutyronitrile and N,N-dimethylformamide at the temperature of 70-100 DEG C, theN-heterocyclic carbene gold porous organic polymer is obtained, the porous organic polymer is taken as a catalyst in the cyclization reaction of CO2 and propynylamine compounds for synthesis of 2-oxazolidone compounds, and the catalyst obtained by filtering can be reused after being washed and dried. Compared with the prior art, the technology is simple, the synthesis period is short, the reaction process is low in toxicity and good in repeatability, the prepared N-heterocyclic carbene gold porous organic polymer has the advantages of adjustable specific surface area and pore volume and highcatalytic activity, is easy to separate, can be recycled and has great development potential and application prospect in the field of heterogeneous catalysis.

Description

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Claims

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Application Information

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Owner EAST CHINA NORMAL UNIV
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