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Preparation method of polyphenylacetylene copper catalyst

A technology of copper catalyst and polyphenylacetylene, which is applied in the field of preparation of polyphenylacetylene copper catalyst, can solve the problems of low preparation efficiency and long time consumption, and achieve the effects of high preparation efficiency, convenient operation and short reaction time

Inactive Publication Date: 2020-05-08
GUIZHOU UNIV OF ENG SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the preparation of polyphenylacetylene copper requires two-step reaction, which takes a long time and the preparation efficiency is low.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A preparation method of polyphenylacetylene copper catalyst, its preparation steps are as follows:

[0018] (1) Dissolve 1 mmol of copper acetate completely in 40 mL of methanol under ultrasonication, and add 0.2 g of phenylacetylene under magnetic stirring;

[0019] (2) Add 0.4 g of ascorbic acid and stir for 2 hours at room temperature;

[0020] (3) Centrifuge at a speed of 7000 rpm to remove solvent methanol, and wash with deionized water for 3 times;

[0021] (4) Vacuum drying at 60°C for 8 hours to obtain a polyphenylacetylene copper catalyst.

Embodiment 2

[0023] A preparation method of polyphenylacetylene copper catalyst, its preparation steps are as follows:

[0024] (1) Dissolve 1 mmol of copper acetate powder completely in 40 mL of methanol under ultrasonication, and add 0.2 g of phenylacetylene under magnetic stirring;

[0025] (2) 0.1 g of hydroxylamine hydrochloride, stirred and reacted at room temperature for 2 hours;

[0026] (3) Centrifuge at a speed of 7000 rpm to remove solvent methanol, and wash with deionized water for 3 times;

[0027] (4) Vacuum drying at 60°C for 8 hours to obtain a polyphenylacetylene copper catalyst.

Embodiment 3

[0029] A preparation method of polyphenylacetylene copper catalyst, its preparation steps are as follows:

[0030] (1) Dissolve 1 mmol of copper acetate completely in 40 mL of methanol under ultrasonication, and add 0.2 g of phenylacetylene under magnetic stirring;

[0031] (2) Add 0.3 g of ascorbic acid and stir for 2 hours at room temperature;

[0032] (3) Centrifuge at a speed of 7000 rpm to remove solvent methanol, and wash with deionized water for 3 times;

[0033] (4) Vacuum drying at 70°C for 8 hours to obtain a polyphenylacetylene copper catalyst.

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Abstract

The invention discloses a preparation method of a polyphenylacetylene copper catalyst. The preparation method comprises the steps: completely dissolving bivalent soluble copper salt into methanol under the ultrasonic action, adding a certain amount of phenylacetylene, adding a reducing agent, carrying out stirring reaction at room temperature for 2 hours, centrifuging to remove methanol, washing with deionized water for three times, drying in vacuum for 8 hours at the temperature of 60 DEG C, and grinding to obtain the polyphenylacetylene copper catalyst. The preparation method is simple in process and simple and convenient to operate.

Description

technical field [0001] The invention relates to the technical field of preparation of copper catalysts, in particular to a preparation method of a polyphenylacetylene copper catalyst used for catalyzing alkyne-azide cycloaddition reactions and photocatalytic reactions. Background technique [0002] The novel properties of copper polyphenylacetylene catalysts and its important application prospects in the field of catalysis have attracted more attention from researchers. At present, it is mainly used in the fields of catalyzing alkyne-azide cycloaddition reaction and photocatalytic reaction. At present, the preparation of copper polyphenylacetylene requires two-step reactions, which takes a long time and the preparation efficiency is low. Contents of the invention [0003] The object of the present invention is to provide a kind of preparation method of polyphenylacetylene copper catalyst, to solve the problem proposed in the above-mentioned background technology. [0004...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F138/00C08F8/42
CPCC08F138/00C08F8/42
Inventor 赵高禹
Owner GUIZHOU UNIV OF ENG SCI