JPS57120552A - Preparation of n,n'-dialkylethylenediamine - Google Patents
Preparation of n,n'-dialkylethylenediamineInfo
- Publication number
- JPS57120552A JPS57120552A JP56007473A JP747381A JPS57120552A JP S57120552 A JPS57120552 A JP S57120552A JP 56007473 A JP56007473 A JP 56007473A JP 747381 A JP747381 A JP 747381A JP S57120552 A JPS57120552 A JP S57120552A
- Authority
- JP
- Japan
- Prior art keywords
- reaction
- pressure
- catalyst
- pref
- alkylamine
- 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
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
Landscapes
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
PURPOSE: To prepare the titled compound useful as an intermediate raw material in organic synthetic chemistry, economically, in an industrial scale, without troubles of apparatus corrosion nor necessitating high temperature and pressure, by reacting glyoxal with an alkylamine in the presence of H and a hydrogenation catalyst.
CONSTITUTION: Glyoxal, an alkylamine (primary amine having 1W6C alkyl), a solvent such as water, and a hydrogenation catalyst (e.g. a platinum-group catalyst) are charged in an autoclave, the autoclave is sealed and substituted sufficiently with hydrogen, and the reactants are subjected to the catalytic amination reaction under normal or positive pressure. After the completion of the reaction, the content is cooled, the catalyst is separated, and the product is distilled under normal or reduced pressure to obtain the titled compound. The reaction temperature is pref. as low as possible, i.e. between normal temp. and 100°C. The reaction temperature of >100°C is undesirable because the polycondensation of the reaction products takes place. The hydrogen pressure is pref. 10W200kg/cm2.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56007473A JPS57120552A (en) | 1981-01-21 | 1981-01-21 | Preparation of n,n'-dialkylethylenediamine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56007473A JPS57120552A (en) | 1981-01-21 | 1981-01-21 | Preparation of n,n'-dialkylethylenediamine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57120552A true JPS57120552A (en) | 1982-07-27 |
| JPS6246536B2 JPS6246536B2 (en) | 1987-10-02 |
Family
ID=11666750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56007473A Granted JPS57120552A (en) | 1981-01-21 | 1981-01-21 | Preparation of n,n'-dialkylethylenediamine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57120552A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6330450U (en) * | 1986-08-08 | 1988-02-27 |
-
1981
- 1981-01-21 JP JP56007473A patent/JPS57120552A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6246536B2 (en) | 1987-10-02 |
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