JPS5212187A - Method of purifying alpha-amino-epsilon- caprolactam - Google Patents

Method of purifying alpha-amino-epsilon- caprolactam

Info

Publication number
JPS5212187A
JPS5212187A JP8669275A JP8669275A JPS5212187A JP S5212187 A JPS5212187 A JP S5212187A JP 8669275 A JP8669275 A JP 8669275A JP 8669275 A JP8669275 A JP 8669275A JP S5212187 A JPS5212187 A JP S5212187A
Authority
JP
Japan
Prior art keywords
caprolactam
amino
epsilon
purifying alpha
purifying
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
Application number
JP8669275A
Other languages
Japanese (ja)
Inventor
Ichiro Kawamoto
Takeshi Sekoguchi
Yoshihiro Shibai
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
Priority to JP8669275A priority Critical patent/JPS5212187A/en
Priority to FR7621690A priority patent/FR2318156A1/en
Publication of JPS5212187A publication Critical patent/JPS5212187A/en
Priority to US05/845,392 priority patent/US4140686A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D223/00—Heterocyclic compounds containing seven-membered rings having one nitrogen atom as the only ring hetero atom
    • C07D223/02—Heterocyclic compounds containing seven-membered rings having one nitrogen atom as the only ring hetero atom not condensed with other rings
    • C07D223/06—Heterocyclic compounds containing seven-membered rings having one nitrogen atom as the only ring hetero atom not condensed with other rings with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D223/12—Nitrogen atoms not forming part of a nitro radical

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

PURPOSE: α-Amino-ε-caprolactam, material for the manufacture of an essential amino acid, lysine, useful as animal foods and food additives, is purified by recrystalization with a specific solvent.
COPYRIGHT: (C)1977,JPO&Japio
JP8669275A 1975-07-17 1975-07-17 Method of purifying alpha-amino-epsilon- caprolactam Pending JPS5212187A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP8669275A JPS5212187A (en) 1975-07-17 1975-07-17 Method of purifying alpha-amino-epsilon- caprolactam
FR7621690A FR2318156A1 (en) 1975-07-17 1976-07-15 Alpha-amino epsilon:caprolactam purificn. by crystallisation - from traces of UV-absorbing material and volatile, basic material
US05/845,392 US4140686A (en) 1975-07-17 1977-10-25 Method for purifying α-amino-ε-caprolactam

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8669275A JPS5212187A (en) 1975-07-17 1975-07-17 Method of purifying alpha-amino-epsilon- caprolactam

Publications (1)

Publication Number Publication Date
JPS5212187A true JPS5212187A (en) 1977-01-29

Family

ID=13894007

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8669275A Pending JPS5212187A (en) 1975-07-17 1975-07-17 Method of purifying alpha-amino-epsilon- caprolactam

Country Status (2)

Country Link
JP (1) JPS5212187A (en)
FR (1) FR2318156A1 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1490312A (en) * 1965-09-11 1967-07-28 Zimmer Ag Hans J Advanced process for the purification of epsilon-caprolactam
DE2224505C3 (en) * 1972-05-19 1980-09-18 Bayer Ag Process for purifying caprolactam
US3898213A (en) * 1974-06-06 1975-08-05 Allied Chem Separation of {60 -amino-{107 -lactams

Also Published As

Publication number Publication date
FR2318156A1 (en) 1977-02-11
FR2318156B1 (en) 1980-09-26

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