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Synthetic method of triazine derivative

The technology of a triazine derivative and a production method, which is applied in the chemical industry, can solve the problems of high reaction temperature, low yield, long reaction time and the like, and achieve the effects of simple synthesis method, wide application range and easy production process

Inactive Publication Date: 2011-06-08
SICHUAN NEW ENERGY POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In 1998, US5792867 reported a method for synthesizing triazine derivatives, but the reaction temperature was high, the reaction time was long, and the conversion rate of reactants was not high, and the yield was low

Method used

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  • Synthetic method of triazine derivative
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  • Synthetic method of triazine derivative

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Add 1 mole of 184 grams of cyanuric chloride, 10 moles of 1260 grams of melamine and 30 moles of 1832 grams of 2-aminoethanol in the reaction kettle, and simultaneously introduce a weak nitrogen flow, heat up to 100-120 ° C, and react for 30 minutes under stirring. Then the temperature was raised to 150-160° C. to react for 3 hours. The whole reaction process is protected by a weak nitrogen flow. After the synthesis is completed, add 3 moles of 50% sodium hydroxide solution and stir for about 15 minutes, then turn on vacuum distillation to concentrate, keep the temperature at 150-160, and then cool down until the reaction The temperature of the product is lower than 100, and the product is in the form of light yellow resin.

[0025] As detected by HPLC, the mole percentages of mono-substitution, di-substitution and tri-substitution in the mixture of triazine derivatives are 15mol%: 40mol%: 45mol%.

Embodiment 2

[0027] Add 3 moles of 552 grams of cyanuric chloride, 10 moles of 1260 grams of melamine and 30 moles of 2670 grams of 4-aminobutanol in the synthesis reactor. The reaction process and reaction time are the same as in Example 1.

[0028] As detected by HPLC, the molar percentages of monosubstituted, disubstituted and trisubstituted triazine derivatives in the mixture of triazine derivatives are: 5mol%: 40mol%: 55mol%.

Embodiment 3

[0030] Add 3 moles of 552 grams of cyanuric chloride, 10 moles of 1260 grams of melamine and 50 moles of 5257 grams of 2-(2-aminoethoxy) ethanol in the synthesis reactor, the reaction process is the same as in Example 1, and the synthesis reaction time is 5 Hours, neutralize the reaction with 4.5 molar sodium carbonate solution.

[0031] As detected by HPLC, the molar percentages of disubstituted and trisubstituted triazine derivatives in the mixture of triazine derivatives are: 30mol%: 70mol%.

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Abstract

The invention relates to a synthetic method of a triazine derivative. Two triazine compounds cyanuric chloride and melamine, and one aminoalcohol compound are heated together in a molar ratio of 0.01-1:1:0.2-6 in nitrogen atmosphere to synthesize the triazine derivative. The synthetic method of triazine derivative disclosed in the invention requires low reaction temperature, short time, and no addition of catalyst. In addition, the synthesized triazine derivative possesses low impurity content, high stability, and is suitable for modification of amino resin.

Description

1. Technical field [0001] The invention belongs to the field of chemical industry, and relates to a production process of chemical products, in particular to a synthesis method of triazine derivatives, which can be used as amino resin modifiers. 2. Background technology [0002] In the application of amino resins, especially high solid content melamine formaldehyde resins for fibers and foams, it is usually necessary to adjust the viscosity of the resin, improve the plasticity of the resin, and improve its processing performance, especially the toughness of its downstream products. In recent years, improving the flexibility of melamine-formaldehyde resin-based products is a hot research direction, and there are also a large number of literatures reporting the reaction of melamine and amino alcohol compounds to prepare mono-substituted, double-substituted, tri-substituted hydroxyalkoxy melamine and other tertiary melamines. A single compound, two or three mixtures of oxazine ...

Claims

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Application Information

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IPC IPC(8): C07D251/56C07D251/54C08K5/3492C08L61/28
Inventor 辜凯德王继军王晓朱小兰苟航杜培松
Owner SICHUAN NEW ENERGY POWER CO LTD
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