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A kind of preparation method of triallyl cyanurate

A technology of triallyl ester and cyanuric acid, applied in the direction of organic chemistry, etc., can solve problems such as poor operating environment, impact on the next reaction, and high toxicity of the solvent toluene

Active Publication Date: 2018-01-16
江苏科利新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under this method, the solvent toluene is more toxic, the operating environment is poor and the moisture content in the recovered solvent toluene after washing with water is relatively high, which will have an impact on the next reaction

Method used

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  • A kind of preparation method of triallyl cyanurate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] In a cooled 500ml reactor, add 61.8g (1.065mol) of allyl alcohol and 120ml of 6 ＃ Solvent oil, after stirring and cooling to below 15°C, add 65.5g (0.355mol) of cyanuric chloride. Under the condition of vigorous stirring and cooling, 142 g of 1.42 mol of 40% sodium hydroxide solution was added dropwise. In the first stage, 70% sodium hydroxide solution was added dropwise, the temperature was controlled at 20°C, and the dropping time was about 1.5 hours. At this time, the cooling medium was removed, and the remaining sodium hydroxide solution was added dropwise in the second stage within 0.5 hours, so that the temperature naturally increased to 40°C. Insulate and stir the reaction at 40°C for 4 hours. After the reaction, the reaction solution is transferred to the liquid separator, add 120ml of water, stir and let it stand for stratification, drain the waste water in the lower layer, and then wash the organic layer with 100ml of water at 30°C. times, wash until neutral....

Embodiment 2

[0024] In a cooled 500ml reactor, add 68.0g (1.171mol) of allyl alcohol and 120ml of 6 ＃ Solvent oil, after stirring and cooling to below 15°C, add 65.5g (0.355mol) of cyanuric chloride. Under the condition of strong stirring and cooling, start to drop 200g of 1.60mol 32% sodium hydroxide solution, in the first stage, add dropwise 75% sodium hydroxide solution, the temperature is controlled at 25°C, and the dropping time is about 1.5 hours At this time, the cooling medium was removed, and the remaining sodium hydroxide solution was added dropwise within 0.5 hours in the second stage, so that the temperature naturally increased to 35°C. Insulate and stir the reaction at 35°C for 3.5 hours. After the reaction, move the reaction liquid to a liquid separator, add 120ml of water, leave to separate after stirring, drain the waste water in the lower layer, and then wash the organic layer with 100ml of water at 30°C. times, wash until neutral. The organic layer enters the distiller,...

Embodiment 3

[0026] In a cooled 500ml reactor, add 68.0g (1.171mol) of allyl alcohol and 120ml of toluene, stir and cool to below 15°C, then add 65.5g (0.355mol) of cyanuric chloride. Under the condition of vigorous stirring and cooling, 160g of 1.60mol 40% sodium hydroxide solution was added dropwise, in the first stage, 70% sodium hydroxide solution was added dropwise, the temperature was controlled at 15°C, and the dropping time was about 1.5 hours At this time, the cooling medium was removed, and the remaining sodium hydroxide solution was added dropwise in the second stage within 0.5 hours, so that the temperature naturally rose to 30°C. Insulate and stir the reaction at 30°C for 4 hours. After the reaction, move the reaction liquid to a liquid separator, add 120ml of water, leave to separate after stirring, drain the waste water in the lower layer, and then wash the organic layer with 100ml of water at 30°C. times, wash until neutral. The organic layer enters the distiller, and the ...

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Abstract

The invention discloses a method for preparing triallyl cyanurate. The method includes the steps that cyanuric chloride and allyl alcohol are dispersed in organic solvent in the first place, acid-binding agent alkali metal hydroxide is dropwise added at the temperature controlled to be proper, the cyanuric chloride and the allyl alcohol are made to react, after the reaction is completed, water is added, generated salt is separated and removed, finally decompression and distillation are conducted to recycle solvent, and a triallyl cyanurate product with the content larger than 99% is obtained. The method has the advantages of being high in product yield, good in product quality and low in cost.

Description

technical field [0001] The invention relates to the field of synthesis of triallyl cyanurate, and specifically provides a method for preparing triallyl cyanurate by reacting in an organic solvent under the action of an alkali metal acid-binding agent. Background technique [0002] Triallyl cyanurate (Trallyl cyanurate) is referred to as TAC, and the system is named 2,4,6-tris(2-propenyloxy)-1,3,5-triazine [2,4,6-tris( 2-propenyloxy)-1,3,5-triazine]. It is a multifunctional olefin monomer with a triazine ring. It is used as an assistant crosslinking agent and radiation crosslinking aid for rubber and plastics. It is effective in increasing the degree of crosslinking and reducing radiation dose. When polyurethane, polyvinyl chloride, ethylene-propylene rubber, chlorinated polyethylene, polyolefin, ethylene-vinyl acetate copolymer, etc. use peroxide as a cross-linking agent, TAC is a good auxiliary cross-linking agent, which can increase the cross-linking speed. Improve the c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D251/34
CPCC07D251/34
Inventor 孔诚刘毓红卫敏马振伟张志文
Owner 江苏科利新材料有限公司
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