JPS5653668A - Preparation of tris 2,3-dibromopropyl isocyanurate - Google Patents
Preparation of tris 2,3-dibromopropyl isocyanurateInfo
- Publication number
- JPS5653668A JPS5653668A JP12974479A JP12974479A JPS5653668A JP S5653668 A JPS5653668 A JP S5653668A JP 12974479 A JP12974479 A JP 12974479A JP 12974479 A JP12974479 A JP 12974479A JP S5653668 A JPS5653668 A JP S5653668A
- Authority
- JP
- Japan
- Prior art keywords
- solvent
- reaction
- mixture
- formula
- crystallization solvent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
PURPOSE: To facilitate the separation and recovery of a crystallization solvent in the preparation of the titled compound useful as a flame retardant by the reaction of triallyl isocyanurate with bromine in the presence of a halogenated aliphatic hydrocarbon, by using a ≥5C saturated hydrocarbon as a crystallization solvent.
CONSTITUTION: Triallyl isocyanurate of formula I is reacted with bromine using a halogenated aliphatic hydrocarbon such as dichloromethane, carbon tetrachloride, etc. as a reaction solvent, and the resulting reaction mixture containing tris (2,3- dibromopropyl) isocyanurate of formula II is mixed with a ≥5C saturated apliphatic hydrocarbon such as heptane, octane, etc. as a crystallization solvent which is a poor solvent of the compound of formula II. The objective compound is crystallized and separated by this process. The crystallization solvent does not form an azeotropic mixture with the reaction solvent, and consequently is recorverd easily by distillation. By selecting a proper crystallization solvent, it can be used as a mixture with the reaction solvent to crystallize and separate the objective compound effectively during the reaction. The recorvered solvent mixture can be used as it is to the reaction.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12974479A JPS5653668A (en) | 1979-10-08 | 1979-10-08 | Preparation of tris 2,3-dibromopropyl isocyanurate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12974479A JPS5653668A (en) | 1979-10-08 | 1979-10-08 | Preparation of tris 2,3-dibromopropyl isocyanurate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5653668A true JPS5653668A (en) | 1981-05-13 |
| JPS6361944B2 JPS6361944B2 (en) | 1988-11-30 |
Family
ID=15017127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12974479A Granted JPS5653668A (en) | 1979-10-08 | 1979-10-08 | Preparation of tris 2,3-dibromopropyl isocyanurate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5653668A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102617496A (en) * | 2012-02-15 | 2012-08-01 | 中国石油大学(华东) | Synthetic method of tris (2,3-dibromopropyl) sulfone isocyanurate |
-
1979
- 1979-10-08 JP JP12974479A patent/JPS5653668A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102617496A (en) * | 2012-02-15 | 2012-08-01 | 中国石油大学(华东) | Synthetic method of tris (2,3-dibromopropyl) sulfone isocyanurate |
| CN102617496B (en) * | 2012-02-15 | 2014-05-21 | 中国石油大学(华东) | Synthetic method of tris (2,3-dibromopropyl) sulfone isocyanurate |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6361944B2 (en) | 1988-11-30 |
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