GB1418870A - Resolution of dl-a-aminophenylacetic-acid - Google Patents
Resolution of dl-a-aminophenylacetic-acidInfo
- Publication number
- GB1418870A GB1418870A GB5806371A GB5806371A GB1418870A GB 1418870 A GB1418870 A GB 1418870A GB 5806371 A GB5806371 A GB 5806371A GB 5806371 A GB5806371 A GB 5806371A GB 1418870 A GB1418870 A GB 1418870A
- Authority
- GB
- United Kingdom
- Prior art keywords
- enantiomorph
- acid
- benzoyl
- aminophenylacetic acid
- aminophenylacetic
- 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.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C227/00—Preparation of compounds containing amino and carboxyl groups bound to the same carbon skeleton
- C07C227/14—Preparation of compounds containing amino and carboxyl groups bound to the same carbon skeleton from compounds containing already amino and carboxyl groups or derivatives thereof
- C07C227/18—Preparation of compounds containing amino and carboxyl groups bound to the same carbon skeleton from compounds containing already amino and carboxyl groups or derivatives thereof by reactions involving amino or carboxyl groups, e.g. hydrolysis of esters or amides, by formation of halides, salts or esters
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
1418870 Resolution of N-benzoyl-[alphaamino phenyl acetic acid] BEECHAM GROUP Ltd 4 Dec 1972 [14 Dec 1971] 58063/71 Heading C2C An enantiomorph of N-benzoyl-[α-aminophenylacetic acid] is obtained from N-benzoyl- [DL-α-amino-phenylacetic acid] or from a sodium salt thereof, by allowing the enantiomorph to selectively crystallize out of a supersaturated solution of N-benzoyl [DL-α-aminophenylacetic acid], or the sodium salt thereof, containing the enantiomorph dissolved therein and optionally also in the form of seed crystals. An enantiomorph of α-aminophenylacetic acid is obtained from DL-α-aminophenylacetic acid by converting the DL-α-aminophenylacetic acid into N-benzoyl-[DL-α-aminophenylacetic acid] or the sodium salt thereof, treating this to obtain an enantiomorph as described above and converting the enantiomorph obtained into the corresponding enantiomorph of α-aminophenylacetic acid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB5806371A GB1418870A (en) | 1971-12-14 | 1971-12-14 | Resolution of dl-a-aminophenylacetic-acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB5806371A GB1418870A (en) | 1971-12-14 | 1971-12-14 | Resolution of dl-a-aminophenylacetic-acid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1418870A true GB1418870A (en) | 1975-12-24 |
Family
ID=10480691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5806371A Expired GB1418870A (en) | 1971-12-14 | 1971-12-14 | Resolution of dl-a-aminophenylacetic-acid |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1418870A (en) |
-
1971
- 1971-12-14 GB GB5806371A patent/GB1418870A/en not_active Expired
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |