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Organic polyamine, its synthesizing process and use

The technology of an organic polyamine and a synthesis method, which is applied in the synthesis field of the organic polyamine, can solve the problems of few types of effective functional groups and limited application range, and achieves the effects of wide application range, many types and strong coordination ability.

Inactive Publication Date: 2006-11-15
LIANYUNGANG TECHN COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing long-chain and multipod organic polyamines, such as diethylenetriamine, triethylenetetramine, tris(3-aminoethyl)amine (tren) and tris(3-aminopropyl)amine (trpn) , all do not have hydroxyalkyl functional groups, and there are few types of effective functional groups, so the scope of application is not wide

Method used

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  • Organic polyamine, its synthesizing process and use
  • Organic polyamine, its synthesizing process and use
  • Organic polyamine, its synthesizing process and use

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Example 1. A kind of organic polyamine, its structural formula is as follows:

[0029]

[0030] Its chemical name is: 1-[di(3-aminopropyl)amino]-2-propanol;

[0031] Molecular formula is C 9 h 23 N 3 O, the molecular weight is 189.

[0032] The following method is used to synthesize, on the basis of the protection of the primary amino group in concentrated sulfuric acid, the target product 1-[two (3- Aminopropyl) amino]-2-propanol, the synthetic reaction equation is:

[0033]

[0034] The 1-[bis(3-aminopropyl)amino]-2-propanol of this embodiment can be used as a catalyst for the preparation reaction of benzyl nitrile. In the preparation reaction of benzyl nitrile, the ratio of the amount of benzyl chloride, sodium cyanide and 1-[bis(3-aminopropyl)amino]-2-propanol is 1:1.08:0.003.

Embodiment 2

[0035] Example 2. A kind of organic polyamine, its structural formula is as follows:

[0036]

[0037] Its chemical name is: 1-[di(3-aminopropyl)amino]-2-propanol;

[0038] Molecular formula is C 9 h 23 N 3 O, the molecular weight is 189.

[0039]Synthesize using the following method, pour bis(3-aminopropyl)amine into the container, stir mechanically, then add water, then add 70% concentrated sulfuric acid dropwise, cool to below 30°C and let it stand for several hours. Add 1,2-propylene oxide to the above system at a rate of 1 mL / h to continue the reaction. Under cooling conditions, adjust the pH to 11 with KOH, filter out the solid inorganic salt, and distill under reduced pressure to remove unreacted substances. Collect The fraction at 175-176°C / 10mmHg yields the target compound 1-[bis(3-aminopropyl)amino]-2-propanol. The mass ratio of bis(3-aminopropyl)amine, water, concentrated sulfuric acid and 1,2-propylene oxide is: 1:0.5:0.8:0.2.

[0040] The 1-[bis(3-aminop...

Embodiment 3

[0041] Example 3. A kind of organic polyamine, its structural formula is as follows:

[0042]

[0043] Its chemical name is: 1-[di(3-aminopropyl)amino]-2-propanol;

[0044] Molecular formula is C 9 h 23 N 3 O, the molecular weight is 189.

[0045] Synthesize using the following method, pour bis(3-aminopropyl)amine into the container, stir mechanically, then add water, then add 98% concentrated sulfuric acid dropwise, cool to below 30°C and let it stand for several hours, under stirring condition Add 1,2-propylene oxide to the above system at a rate of 10 mL / h to continue the reaction. Under cooling conditions, adjust the pH to 15 with NaOH, filter out the solid inorganic salts, and distill under reduced pressure to remove unreacted substances. Collect The fraction at 175-176°C / 10mmHg yields the target compound 1-[bis(3-aminopropyl)amino]-2-propanol. The mass ratio of bis(3-aminopropyl)amine, water, concentrated sulfuric acid and 1,2-propylene oxide is: 1:~0.8:1.1:0.4....

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Abstract

An organic polyamine 1[bis(3-aminopropyl) amino]-2-propanol, that is, G9H23N3O, its preparing process and its application as chemical intermediate in preparing chelating agent, corrosion inhibitor, resin solidifying agent and catalyst and researching metallic enzyme are disclosed.

Description

technical field [0001] The invention relates to a new organic polyamine, and also relates to a synthesis method and application of the organic polyamine. Background technique [0002] Organic polyamines are important pharmaceutical and chemical intermediates, which can be used in the preparation of chelating agents, corrosion inhibitors, resin curing agents, catalysts, and metalloenzyme simulation studies. Existing long-chain and multipod organic polyamines, such as diethylenetriamine, triethylenetetramine, tris(3-aminoethyl)amine (tren) and tris(3-aminopropyl)amine (trpn) , all without hydroxyalkyl functional groups, the types of effective functional groups are few, and the application range is not wide. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a new organic polyamine with novel structure, many kinds of effective functional groups and strong coordination ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C215/14C07C213/04
Inventor 高健
Owner LIANYUNGANG TECHN COLLEGE
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