Chloride → 2,4,6-Tris(2,3,4-tribromophenoxy)-1,3,5-triazine
Reaction equation
[Br:1][C:2]1[CH:7]=[CH:6][C:5]([O-:8])=[C:4]([Br:9])[C:3]=1[Br:10].[N:11]1[C:18](Cl)=[N:17][C:15](Cl)=[N:14][C:12]=1Cl.[Br:20][C:21]1[CH:26]=[CH:25][C:24]([OH:27])=[C:23]([Br:28])[C:22]=1[Br:29].[Cl-]>>[Br:1][C:2]1[CH:7]=[CH:6][C:5]([O:8][C:12]2[N:14]=[C:15]([O:27][C:24]3[CH:25]=[CH:26][C:21]([Br:20])=[C:22]([Br:29])[C:23]=3[Br:28])[N:17]=[C:18]([O:8][C:5]3[CH:6]=[CH:7][C:2]([Br:1])=[C:3]([Br:10])[C:4]=3[Br:9])[N:11]=2)=[C:4]([Br:9])[C:3]=1[Br:10]Participants
Procedure
An exemplary production process according to this invention comprises preparing an aqueous tribromophenolate solution and dripping this aqueous solution to a dispersion or solution of cyanuric chloride and tertiary amine in a non-hydrophilic solvent or adding said tertiary amine and a powder of cyanuric chloride to said aqueous solution. The preferred molar ratio of cyanuric chloride to tribromophenol is 1:2.94-3.60. Where both a tertiary amine and a phase transfer catalyst are employed, an exemplary procedure comprises preparing an aqueous tribromophenolate solution, adding a tertiary amine thereto and dripping the mixture to a solution or dispersion of cyarnuric chloride and phase transfer catalyst in a non-hydrophilic solvent or adding said phase transfer catalyst, said tertiary amine and a powder of cyanuric chloride to the aqueous tribromophenolate solution. After the above dripping or addition, the reaction system is aged where necessary and the non-hydrophilic solvent is removed from the reaction system at atmospheric or subatmospheric pressure. In this manner, tris(tribromophenoxy)-s-triazine of high purity can be obtained.
Workup
- additionadding
- additionadding
- additionaddition
- customthe non-hydrophilic solvent is removed from the reaction system at atmospheric or subatmospheric pressure
Sources & evidence
- ORD record
- ord-9436138d427a430c88d9c07625c9c5ba
- Source dataset
- uspto-grants-2000_06
- Patent number
- US06075142
Reaction notes
Loading…