GB1260806A - Optical resolution of d,l-lysine - Google Patents

Optical resolution of d,l-lysine

Info

Publication number
GB1260806A
GB1260806A GB22772/70A GB2277270A GB1260806A GB 1260806 A GB1260806 A GB 1260806A GB 22772/70 A GB22772/70 A GB 22772/70A GB 2277270 A GB2277270 A GB 2277270A GB 1260806 A GB1260806 A GB 1260806A
Authority
GB
United Kingdom
Prior art keywords
lysine
optical resolution
water
stereoisomers
heading
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
GB22772/70A
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.)
Toray Industries Inc
Original Assignee
Toray Industries Inc
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 Toray Industries Inc filed Critical Toray Industries Inc
Publication of GB1260806A publication Critical patent/GB1260806A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23K—FODDER
    • A23K20/00—Accessory food factors for animal feeding-stuffs

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Animal Husbandry (AREA)
  • Zoology (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

1,260,806. Optical resolution of d,l-lysine. TORAY INDUSTRIES Inc. 12 May, 1970 [19 May, 1969], No. 22772/70. Heading C2C. d,l-lysine is optically resolved from its stereoisomers into d-lysine and l-lysine by adding an optically active form of 5-oxo-2-pyrrolidine carboxylic acid or the ammonium salt thereof. The process is suitably carried out in a solvent selected from water and an organic solvent having an affinity for water such as a (C 1 -C 4 ) aliphatic alcohol or ketone or a mixture thereof. The l-lysine may be separated from the reaction product by means of an ion-exchange resin, and is then preferably reacted with HCl to form the mono-hydrochloride salt which is then dried, dissolved in an aqueous alcohol and concentrated to form crystals.
GB22772/70A 1969-05-19 1970-05-12 Optical resolution of d,l-lysine Expired GB1260806A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3796269 1969-05-19

Publications (1)

Publication Number Publication Date
GB1260806A true GB1260806A (en) 1972-01-19

Family

ID=12512171

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22772/70A Expired GB1260806A (en) 1969-05-19 1970-05-12 Optical resolution of d,l-lysine

Country Status (5)

Country Link
DE (1) DE2024062C3 (en)
FR (1) FR2043514A1 (en)
GB (1) GB1260806A (en)
IT (1) IT988303B (en)
NL (1) NL7007035A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110563597A (en) * 2019-09-23 2019-12-13 宜昌三峡普诺丁生物制药有限公司 Process control method for lysine acetate preparation process

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110563597A (en) * 2019-09-23 2019-12-13 宜昌三峡普诺丁生物制药有限公司 Process control method for lysine acetate preparation process

Also Published As

Publication number Publication date
DE2024062A1 (en) 1970-12-03
IT988303B (en) 1975-04-10
NL7007035A (en) 1970-11-23
DE2024062B2 (en) 1973-03-22
DE2024062C3 (en) 1973-10-25
FR2043514A1 (en) 1971-02-19

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee