25713-60-4Relevant articles and documents
2. 4, 6 - three (2, 4, 6 - three-bromophenylacetic oxy) - 1, 3, 5 - triazine synthesis method
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Paragraph 0021; 0022; 0023; 0024; 0025; 0027; 0028-0033, (2017/08/25)
The invention discloses a synthesis method of 2,4,6-tris(2,4,6-tribromophenoxy)-1,3,5-triazine. The method includes the steps that N-methylimidazole and 2,4,6-tribromophenol form salt when a solvent exists or no solvent exists, then, N-methylimidazole and 2,4,6-tribromophenol react with tricyanogen chloride, and the 2,4,6-tris(2,4,6-tribromophenoxy)-1,3,5-triazine is obtained. According to the synthesis method, inorganic base is not needed, no waste water with inorganic base is generated, and the method is an atom-economical and pollution-free method for preparing the 2,4,6-tris(2,4,6-tribromophenoxy)-1,3,5-triazine.
FLAME RETARDANT COMPOSITION FORFLAMMABLE PLASTIC MATERIALS COMPRISING2,4,6-TRIS(2,4,6-TRIBROMOPHENOXY)-1,3,5-TRIAZINE AND PROCESSFOR PRODUCING THE SAME
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Page/Page column 9, (2010/11/17)
A flame retardant composition for flammable plastic materials and a method for producing the same are disclosed. The flame retardant composition comprises 2,4,6-tris(2,4,6-tribromophenoxy)-1,3,5- triazine that contains 1 to 1000ppm of a metal species of a water-insoluble polyvalent metal compound selected from the group consisting of oxide, hydroxide, carbonate, phosphate, sulfate and silicate present in the particles of 2,4,6-tris(2,4,6-tribromophenoxy)- 1,3,5-triazine. The flame retardant composition is produced by reacting an alkali metal salt of 2,4,6- tribromophenol and cyanuric chloride in the presence of said water-insoluble polyvalent metal compound.
PRODUCTION OF TRIS (2,4,6-TRIBROMOPHENOXY-1,3,5-TRIAZINE)
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Page/Page column 4, (2008/12/06)
Tris(2,4,6-tribromophenoxy)-1,3,5-triazine , an effective flame retardant, is prepared by an efficient, low cost process. The process comprises (A) forming a mixture from 2,4,6- tribromophenol, alkali metal carbonate, and acetone as the solvent, refluxing the mixture to form a first reaction product mixture, (B) feeding cyanuric chloride portionwise to first reaction product mixture and refluxing the resultant mixture to form a solids-containing second reaction product mixture; C) recovering solids from second reaction product mixture, washing the solids with acetone and then with hot water, and thereafter drying the washed product.
Production of tris(2,4,6-tribromophenoxy)-s-1,3,5-triazine
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, (2008/06/13)
In an aqueous reaction medium, phenol is brominated with bromine under conditions forming an aqueous hydrobromic acid phase and an organic phase consisting essentially of molten 2,4,6-tribromophenol. The aqueous hydrobromic acid phase and the molten 2,4,6-tribromophenol are separated from each other, and optionally the molten 2,4,6-tribromophenol is washed with an aqueous decolorizing solution. An alkali metal base and water are mixed with the 2,4,6-tribromophenol to form an alkali metal salt of tribromophenol. Then, in a mixture consisting essentially of water and at least one liquid ketone, cyanuric chloride is reacted with at least a portion of the alkali metal 2,4,6-tribromophenolate of such that tris(2,4,6-tribromophenoxy)-s-1,3,5-triazine is produced.