JPS5687548A - Preparation of alpha,beta-dihalogenopropionitrile - Google Patents
Preparation of alpha,beta-dihalogenopropionitrileInfo
- Publication number
- JPS5687548A JPS5687548A JP16358779A JP16358779A JPS5687548A JP S5687548 A JPS5687548 A JP S5687548A JP 16358779 A JP16358779 A JP 16358779A JP 16358779 A JP16358779 A JP 16358779A JP S5687548 A JPS5687548 A JP S5687548A
- Authority
- JP
- Japan
- Prior art keywords
- acrylonitrile
- dihalogenopropionitrile
- give
- directly
- beta
- 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
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
PURPOSE: To obtain the titled compound useful as a raw material for a physiologically active substance, etc. in high yield industrially advantagenously, by halogenating acrylonitrile directly in the presence of a specific catalyst under specified conditions.
CONSTITUTION: Acrylonitrile is hlaogenated directly in the presence of an acid amine in a molar ratio of it: acrylonitrile of 1:0.05W2.0 in the absence of light at -70W75°C to give a reaction product, which is distilled under reduced pressure, to give an α,β-dihalogenopropionitrile in high selectivity and conversion. Formaldehyde, etc. may be cited as the acid amide, and 2-aminoethanolamine, etc. as the ethanolamine.
EFFECT: Any by-products are hardly formed. There are neither problem of recovery of pyridiene nor that of liquid-waste treatment. A catalyst containing about 0.5wt% water, a technical grade, is used without any problems.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16358779A JPS5687548A (en) | 1979-12-18 | 1979-12-18 | Preparation of alpha,beta-dihalogenopropionitrile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16358779A JPS5687548A (en) | 1979-12-18 | 1979-12-18 | Preparation of alpha,beta-dihalogenopropionitrile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5687548A true JPS5687548A (en) | 1981-07-16 |
| JPS619935B2 JPS619935B2 (en) | 1986-03-27 |
Family
ID=15776742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16358779A Granted JPS5687548A (en) | 1979-12-18 | 1979-12-18 | Preparation of alpha,beta-dihalogenopropionitrile |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5687548A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0771787A1 (en) * | 1995-10-30 | 1997-05-07 | Bayer Ag | Process for the preparation of 2-chloroacrylonitrile |
-
1979
- 1979-12-18 JP JP16358779A patent/JPS5687548A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0771787A1 (en) * | 1995-10-30 | 1997-05-07 | Bayer Ag | Process for the preparation of 2-chloroacrylonitrile |
| US5679826A (en) * | 1995-10-30 | 1997-10-21 | Bayer Aktiengesellschaft | Process for the preparation of 2-chloroacrylonitrile |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS619935B2 (en) | 1986-03-27 |
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