First class s-triazine amphoteric betaine surfactant and synthesizing method thereof

A technology of surfactants and synthetic methods, applied in chemical instruments and methods, organic chemistry, transportation and packaging, etc., can solve problems such as human injury, and achieve the effects of not easy precipitation, shortened reaction time, and mild conditions.

Inactive Publication Date: 2012-03-28
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the synthesis process of these three types of surfactants, in the first step reaction, toluene is used as a solvent, which is harmful to the human body.

Method used

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  • First class s-triazine amphoteric betaine surfactant and synthesizing method thereof
  • First class s-triazine amphoteric betaine surfactant and synthesizing method thereof
  • First class s-triazine amphoteric betaine surfactant and synthesizing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Example 1: Preparation of N-(4,6-bisoctylamino-1,3,5-s-triazin-2-yl)-N',N'-dimethyl-N'-carboxymethyl-1 ,2-Ethylenediamine amphoteric betaine surfactant

[0031] The first step reaction: the synthesis of intermediate 2,4-bisoctylamino-6-chloro-1,3,5-s-triazine

[0032] Dissolve 1.84g (0.01mol) of cyanuric chloride in 30mL of chloroform in a reaction flask, add dropwise a solution of 2.58g (0.02mol) of octylamine in chloroform at room temperature, and adjust the pH to 7~ with 5~8% potassium hydroxide solution. 10, reacted at room temperature for 12h. After the reaction was complete, the solvent was removed to obtain a white solid. The white solid was recrystallized from chloroform / methanol (1 / 8 to 1 / 1 by volume) to obtain 2.89 g of the intermediate 2,4-bis-octylamino-6-chloro-1,3,5-s-triazine. The rate is 78.3%.

[0033] The second step reaction: intermediate N-(4,6-bisoctylamino-1,3,5-s-triazin-2-yl)-N',N'-dimethyl-1,2-ethanedi Amine Synthesis

[0034] Stir 2.89g (...

Embodiment 2

[0037] Example 2: Preparation of N-(4,6-didecylamino-1,3,5-s-triazin-2-yl)-N',N'-dimethyl-N'-carboxymethyl-1 ,2-Ethylenediamine amphoteric betaine surfactant

[0038] The first step reaction: the synthesis of the intermediate 2,4-didecylamino-6-chloro-1,3,5-s-triazine

[0039] Dissolve 1.84g (0.01mol) of cyanuric chloride in 30mL of chloroform in a reaction flask, add dropwise a chloroform solution of 3.14g (0.02mol) of decylamine at room temperature, and adjust the pH to 7 to 7 with 5 to 8% sodium hydroxide solution. 10, reacted at room temperature for 12h. After the reaction was complete, the solvent was removed to obtain a white solid. The white solid was recrystallized from chloroform / methanol (1 / 8 to 1 / 1 by volume) to obtain 3.31 g of the intermediate 2,4-didecylamino-6-chloro-1,3,5-s-triazine. The rate is 77.8%.

[0040] The second step reaction: intermediate N-(4,6-didecylamino-1,3,5-s-triazin-2-yl)-N',N'-dimethyl-1,2-ethanedi Amine Synthesis

[0041] Stir 3.31g (...

Embodiment 3

[0044] Example 3: Preparation of N-(4,6-didodecylamino-1,3,5-s-triazin-2-yl)-N',N'-dimethyl-N'-carboxymethyl- 1,2-Propanediamine Amphoteric Surfactant

[0045] The first step reaction: the synthesis of the intermediate 2,4-didodecylamino-6-chloro-1,3,5-s-triazine

[0046] Dissolve 1.84g (0.01mol) of cyanuric chloride in 30mL of chloroform in a reaction flask, add dropwise a solution of 3.71g (0.02mol) of dodecylamine in chloroform at room temperature, and adjust the pH to 7 with 5-8% sodium hydroxide solution. ~10, reacted at room temperature for 12h. After the reaction was complete, the solvent was removed to obtain a white solid. The white solid was recrystallized from chloroform / methanol (1 / 8 to 1 / 1 by volume) to obtain 4.24 g of the intermediate 2,4-didodecylamino-6-chloro-1,3,5-s-triazine, The yield was 88.1%.

[0047] The second step reaction: intermediate N-(4,6-didodecylamino-1,3,5-s-triazin-2-yl)-N',N'-dimethyl-1,3-propane Synthesis of diamines

[0048] Stir 4.2...

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Abstract

The invention belongs to the field of surfactant synthetic chemistry. The first class s-triazine amphoteric betaine surfactant is characterized in that: the long alkyl carbon chains on a triazine ring are symmetrical, and the chemical name is N-(4,6-double fatty amino-1,3,5-s-triazine-2-radical)-N',N'-dimethyl-N'-carboxymethyl alkyl diamine amphoteric betaine surfactant. In addition, the invention further provides a synthesizing method of the amphoteric betaine surfactant, which takes cyanuric chloride, fatty amine, N,N-dimethyl alkyl diamine and sodium chloroacetate as main raw materials forpreparation, and the amphoteric betaine surfactant is prepared through three steps. In the N-(4,6-double fatty amino-1,3,5-s-triazine-2-radical)-N',N'-dimethyl-N'-carboxymethyl alkyl diamine amphoteric betaine surfactant of the invention, compared with the sulfonate surfactant, the carboxylate amphoteric betaine surfactant has good tenderness, is not easy to settle, can be used with different surfactants in media of various pH, and has great superiority.

Description

technical field [0001] The invention belongs to the field of surfactant synthesis chemistry, and in particular relates to a class of s-triazine amphoteric betaine surfactants, and also relates to a synthesis method thereof. Background technique [0002] Cyanuric chloride is an important industrial raw material, and the amine-substituted s-triazine derivatives formed by its reaction with amines are of great significance. The three chlorine atoms on the s-triazine ring can be replaced by -OH, -NH 2 , -SH, -NHR and other functional groups are replaced to form s-triazine derivatives with different properties and uses, such as reactive dyes, pesticides and surfactants. The s-triazine surfactants show good application prospects due to their excellent performance and environmental friendliness. [0003] The s-triazine surfactant is prepared from cyanuric chloride as a raw material by replacing the chlorine atoms on the cyanuric chloride ring with amines. The hydrophobic chain of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01F17/18B01F17/32B01F17/28C07D251/70C09K23/18C09K23/28C09K23/32
Inventor 乔卫红彭欢
Owner DALIAN UNIV OF TECH
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