JPS55136253A - Preparation of alpha-halogeno-beta-alanine - Google Patents
Preparation of alpha-halogeno-beta-alanineInfo
- Publication number
- JPS55136253A JPS55136253A JP4364379A JP4364379A JPS55136253A JP S55136253 A JPS55136253 A JP S55136253A JP 4364379 A JP4364379 A JP 4364379A JP 4364379 A JP4364379 A JP 4364379A JP S55136253 A JPS55136253 A JP S55136253A
- Authority
- JP
- Japan
- Prior art keywords
- halogeno
- alanine
- mineral acid
- acid
- aminopropionitrile
- 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 an α-halogeno-β-alanine or its mineral acid salt, useful as an intermediate for the synthesis of α-amino acids such as serine or an intermediate for medicines, etc., in high yield, by the hydrolysis of a mineral acid salt of α- halogeno-β-aminopropionitrile.
CONSTITUTION: Minceral acid salts of α-halogeno-β-aminopropionitrile (e.g. α- chloro-β-aminopropionitrile hydrochloride, α-chloro-β-amino-propionitrile sulfate, etc) are added to a mineral acid (preferably hydrochloric acid or sulfuric acid) and subjected to hydrolysis, to obtain α-halogeno-β-alanine and mineral acid salts thereof. Concentration of the mineral acid used is, for example, preferably 8W 30wt% in the case of hydrochloric acid and 15W60wt% in the case of sulfuric acid.
EFFECT: Since the separation of the objective product from by-products is not necessary, the present process is industrially very advantageous.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4364379A JPS55136253A (en) | 1979-04-12 | 1979-04-12 | Preparation of alpha-halogeno-beta-alanine |
EP19800301165 EP0018177B1 (en) | 1979-04-12 | 1980-04-11 | Process for producing alpha-halogeno-beta-alanines or the mineral acid salts thereof |
DE8080301165T DE3060243D1 (en) | 1979-04-12 | 1980-04-11 | Process for producing alpha-halogeno-beta-alanines or the mineral acid salts thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4364379A JPS55136253A (en) | 1979-04-12 | 1979-04-12 | Preparation of alpha-halogeno-beta-alanine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55136253A true JPS55136253A (en) | 1980-10-23 |
Family
ID=12669542
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4364379A Pending JPS55136253A (en) | 1979-04-12 | 1979-04-12 | Preparation of alpha-halogeno-beta-alanine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55136253A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04313594A (en) * | 1991-04-11 | 1992-11-05 | Sumitomo Heavy Ind Ltd | Roll hoisting accessory |
-
1979
- 1979-04-12 JP JP4364379A patent/JPS55136253A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04313594A (en) * | 1991-04-11 | 1992-11-05 | Sumitomo Heavy Ind Ltd | Roll hoisting accessory |
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