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Azo-compound

An azo compound, methyl technology, applied in the direction of azo dyes, monoazo dyes, organic chemistry, etc., can solve problems such as poor performance of environmental protection pressure disperse dyes

Active Publication Date: 2015-12-16
DONGYING ANNUOQI TEXTILE MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide an azo compound in order to alleviate the huge environmental protection pressure and cost pressure of the dye industry and the printing and dyeing industry, and to improve the poor performance of disperse dyes.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0086] Embodiment 1 naphthalene ring compound 2-1 (R 1 for hydrogen, R 2 For the preparation of methyl)

[0087]

[0088] At room temperature, in a dry 100ml three-necked flask, add 21.7g methyl chloroacetate (compound 5, R 2 methyl), and then add 19.09g of 1-naphthylamine, 8.5g of anhydrous sodium carbonate and 3.46g of sodium bromide while stirring, stir evenly, and then slowly raise the temperature to 100°C for reaction. The reaction was monitored by HPLC until the reaction of 1-naphthylamine was complete. Add about 70ml of water to dissolve the solid, slowly raise the temperature to 70°C and separate the layers while hot, collect the organic phase, add 50ml of water, adjust the pH to neutral with 30% aqueous sodium hydroxide solution at room temperature, then slowly raise the temperature to 70°C, and Heat layering, collect organic phase, decompression distillation removes moisture, obtains naphthalene ring compound 2-1 (R 1 for hydrogen, R 2 is methyl) 27.35g, yiel...

Embodiment 2

[0089] Embodiment 2 naphthalene ring compound 2-4 (R 1 is methyl, R 2 for the preparation of ethyl)

[0090]

[0091] At room temperature, in a dry 100ml three-necked flask, add 24.51g ethyl chloroacetate (compound 5, R 2 ethyl), and then add 24.19g of N-methyl 1-naphthylamine, 8.5g of anhydrous sodium carbonate and 3.46g of sodium bromide while stirring, stir evenly, and then slowly raise the temperature to 120°C and keep it warm for reaction. The reaction was monitored by HPLC until the reaction of N-methyl-1-naphthylamine was complete. Add about 70ml of water to dissolve the solid, slowly raise the temperature to 70°C and separate the layers while hot, collect the organic phase, add 50ml of water, adjust the pH to neutral with 30% aqueous sodium hydroxide solution at room temperature, then slowly raise the temperature to 65°C, Heat layering, collect organic phase, decompression distillation removes moisture, obtains naphthalene ring compound 2-4 (R 1 is methyl, R 2 ...

Embodiment 3

[0092] Embodiment 3 naphthalene ring compound 2-6 (R 1 is ethyl, R 2 for the preparation of ethyl)

[0093]

[0094] At room temperature, in a dry 100ml four-necked flask, add 30ml absolute ethanol, 21.26g ethyl chloroacetate (compound 5, R 2 ethyl), then add 22.83g of N-ethyl 1-naphthylamine, 8.5g of anhydrous sodium carbonate and 3.46g of sodium bromide while stirring, stir evenly, and then slowly heat up to 100°C for reaction under reflux. The reaction was monitored by HPLC until the reaction of N-ethyl-1-naphthylamine was complete. Cool down to room temperature, and distill off ethanol and excess ethyl chloroacetate under reduced pressure. Add about 70ml of water to dissolve the solid, slowly raise the temperature to 70°C and separate the layers while hot, collect the organic phase, add 50ml of water, adjust the pH to neutral with 30% aqueous sodium hydroxide solution at room temperature, then slowly raise the temperature to 70°C, and Heat layering, collect organic ...

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Abstract

The invention discloses an azo-compound. A disperse dye prepared by using the azo-compound has good washing resistance fastness and higher improvement capability, and the content of forbidden aromatic amine in cloth patterns dyed by the disperse dye meets the requirements of Oeko-Tex Standard 100-2015. The formula of the azo-compound is shown in the description.

Description

technical field [0001] The present invention relates to an azo compound. Background technique [0002] In recent years, environmental problems have become increasingly serious, and the country's requirements for environmental protection have become more and more stringent. There are frequent environmental protection tickets in major cities across the country. At the same time, as the environment worsens, people pay more and more attention to environmental protection, and their awareness of environmental protection has gradually strengthened. A good atmosphere has basically formed in the whole society where everyone pays attention to the ecological environment and consciously protects the ecological environment. Therefore, the dye industry and the printing and dyeing industry are under increasing pressure on environmental protection, and the situation is very severe. [0003] The pollution of disperse dye intermediates in the production process is relatively large, and few ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C245/10C09B29/095D06P1/18D06P3/52D06P3/82
Inventor 韩伟鹏赵敏燕美芳尹东
Owner DONGYING ANNUOQI TEXTILE MATERIALS