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GB1418870A - Resolution of dl-a-aminophenylacetic-acid - Google Patents

Resolution of dl-a-aminophenylacetic-acid

Info

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
Application number
GB5806371A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beecham Group PLC
Original Assignee
Beecham Group PLC
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Beecham Group PLC filed Critical Beecham Group PLC
Priority to GB5806371A priority Critical patent/GB1418870A/en
Publication of GB1418870A publication Critical patent/GB1418870A/en
Expired legal-status Critical Current

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.
GB5806371A 1971-12-14 1971-12-14 Resolution of dl-a-aminophenylacetic-acid Expired GB1418870A (en)

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)

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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