JPS6479148A - Production of maleimide - Google Patents
Production of maleimideInfo
- Publication number
- JPS6479148A JPS6479148A JP23574087A JP23574087A JPS6479148A JP S6479148 A JPS6479148 A JP S6479148A JP 23574087 A JP23574087 A JP 23574087A JP 23574087 A JP23574087 A JP 23574087A JP S6479148 A JPS6479148 A JP S6479148A
- Authority
- JP
- Japan
- Prior art keywords
- reacting
- 1mol
- separating
- raw material
- polar aprotic
- 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
Landscapes
- Pyrrole Compounds (AREA)
Abstract
PURPOSE:To obtain the titled compound useful as a raw material for polymeric compound, etc., on an industrial scale at a low cost, by reacting maleic anhydride with ammonia and reacting the reaction product, without separating from the system, with cyanuryl chloride in an essentially anhydrous polar aprotic solvent. CONSTITUTION:1mol. of maleic acid is made to react with 0.5-1.8mol., preferably 0.8-1.2mol., especially 1mol. or NH3 in a polar aprotic solvent (e.g., N,N- dimethylformamide) to obtain a compound of formula III. The objective maleimide is produced by reacting the reaction product with cyanuryl chloride without separating from the former reaction system. The process has various advantages such as high yield, easily available raw material, use of only one kind of solvent, high operation efficiency, low facility cost, recovery and reutilization of cyanuric acid, mild and rapid reaction, etc.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62235740A JP2540167B2 (en) | 1987-09-18 | 1987-09-18 | Method for producing maleimide |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62235740A JP2540167B2 (en) | 1987-09-18 | 1987-09-18 | Method for producing maleimide |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6479148A true JPS6479148A (en) | 1989-03-24 |
JP2540167B2 JP2540167B2 (en) | 1996-10-02 |
Family
ID=16990520
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62235740A Expired - Fee Related JP2540167B2 (en) | 1987-09-18 | 1987-09-18 | Method for producing maleimide |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2540167B2 (en) |
-
1987
- 1987-09-18 JP JP62235740A patent/JP2540167B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP2540167B2 (en) | 1996-10-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |