JPS56152436A - Preparation of beta-chloropropionic acid - Google Patents
Preparation of beta-chloropropionic acidInfo
- Publication number
- JPS56152436A JPS56152436A JP5535080A JP5535080A JPS56152436A JP S56152436 A JPS56152436 A JP S56152436A JP 5535080 A JP5535080 A JP 5535080A JP 5535080 A JP5535080 A JP 5535080A JP S56152436 A JPS56152436 A JP S56152436A
- Authority
- JP
- Japan
- Prior art keywords
- organic solvent
- chloropropionic acid
- solvent
- chloropropionic
- acrylonitrile
- 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.)
- Pending
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 variety of industrial and agricultural chemicals in high purity and yield, only by the extraction of β-chloropropionic acid prepared by the reaction between acrylonitrile and hydrochloric acid under pressure at a relatively low temperature, with an organic solvent.
CONSTITUTION: Acrylonitrile is reacted with conc. hydrochloric acid under pressure at 30W100°C, preferably 50W60°C, for 10W16hr, to prepare β-chloropropionic acid, which is extracted with an organic solvent, and the organic solvent is then distilled off to give β-chloropropionic acid in high purity of 98% or more and yield of 90% or more without a purifying operation. The organic solvent should have an appropriate boiling point and a high partition ratio for the β-chloropropionic acid; therefore, benzene, toluene or xylene may be cited as the organic solvent. A little β- chloropropionic acid distilled in the solvent can be saved from loss by the recycled use of the recovered solvent.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5535080A JPS56152436A (en) | 1980-04-28 | 1980-04-28 | Preparation of beta-chloropropionic acid |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5535080A JPS56152436A (en) | 1980-04-28 | 1980-04-28 | Preparation of beta-chloropropionic acid |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56152436A true JPS56152436A (en) | 1981-11-26 |
Family
ID=12996042
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5535080A Pending JPS56152436A (en) | 1980-04-28 | 1980-04-28 | Preparation of beta-chloropropionic acid |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56152436A (en) |
-
1980
- 1980-04-28 JP JP5535080A patent/JPS56152436A/en active Pending
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