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GB1276705A - PROCESS FOR THE PRODUCTION OF epsilon-CAPROLACTAM - Google Patents

PROCESS FOR THE PRODUCTION OF epsilon-CAPROLACTAM

Info

Publication number
GB1276705A
GB1276705A GB6206469A GB6206469A GB1276705A GB 1276705 A GB1276705 A GB 1276705A GB 6206469 A GB6206469 A GB 6206469A GB 6206469 A GB6206469 A GB 6206469A GB 1276705 A GB1276705 A GB 1276705A
Authority
GB
United Kingdom
Prior art keywords
solution
caprolactam
temperature
epsilon
production
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
GB6206469A
Inventor
Ernst Schmitz
Roland Ohme
Helmit Striegler
Hans Ulbrich Heyne
Siegfried Schramm
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.)
Leuna Werke GmbH
Original Assignee
Leuna Werke GmbH
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 Leuna Werke GmbH filed Critical Leuna Werke GmbH
Priority to GB6206469A priority Critical patent/GB1276705A/en
Publication of GB1276705A publication Critical patent/GB1276705A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D201/00—Preparation, separation, purification or stabilisation of unsubstituted lactams
    • C07D201/02—Preparation of lactams

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Peptides Or Proteins (AREA)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)

Abstract

1276705 #-Caprolactam LEUNA-WERKE WALTER ULBRICHT VEB 19 Dec 1969 62064/69 Heading C2C #-Caprolactam is prepared from a solution of pentamethylene oxaziridine (i.e. cyclohexanone isoxime) in an organic solvent which contains no active hydrogen atoms by either (i) heating the solution to a temperature of from 250‹ to 350‹ C., or (ii) extracting pentamethylene oxaziridine from the said solution by means of highly concentrated H 2 SO 4 , and subjecting the resulting acidic solution to a Beckmann rearrangement at a temperature of between 80‹ and 150‹ C.
GB6206469A 1969-12-19 1969-12-19 PROCESS FOR THE PRODUCTION OF epsilon-CAPROLACTAM Expired GB1276705A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB6206469A GB1276705A (en) 1969-12-19 1969-12-19 PROCESS FOR THE PRODUCTION OF epsilon-CAPROLACTAM

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB6206469A GB1276705A (en) 1969-12-19 1969-12-19 PROCESS FOR THE PRODUCTION OF epsilon-CAPROLACTAM

Publications (1)

Publication Number Publication Date
GB1276705A true GB1276705A (en) 1972-06-07

Family

ID=10487835

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6206469A Expired GB1276705A (en) 1969-12-19 1969-12-19 PROCESS FOR THE PRODUCTION OF epsilon-CAPROLACTAM

Country Status (1)

Country Link
GB (1) GB1276705A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114618409A (en) * 2022-01-27 2022-06-14 中国计量大学 Micro-reaction system and method for continuous preparation of 1-oxa-2-azaspiro[2,5]octane

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114618409A (en) * 2022-01-27 2022-06-14 中国计量大学 Micro-reaction system and method for continuous preparation of 1-oxa-2-azaspiro[2,5]octane
CN114618409B (en) * 2022-01-27 2023-07-18 中国计量大学 A micro reaction system and method for continuously preparing 1-oxa-2-azaspiro[2,5]octane

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees