GB911806A - Production of caprylic lactam - Google Patents

Production of caprylic lactam

Info

Publication number
GB911806A
GB911806A GB15037/61A GB1503761A GB911806A GB 911806 A GB911806 A GB 911806A GB 15037/61 A GB15037/61 A GB 15037/61A GB 1503761 A GB1503761 A GB 1503761A GB 911806 A GB911806 A GB 911806A
Authority
GB
United Kingdom
Prior art keywords
weight
caprylic lactam
production
caprylic
lactam
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
GB15037/61A
Inventor
Guenther Rapp
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.)
BASF SE
Original Assignee
BASF SE
Badische Anilin and Sodafabrik AG
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 BASF SE, Badische Anilin and Sodafabrik AG filed Critical BASF SE
Publication of GB911806A publication Critical patent/GB911806A/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
    • C07D201/04—Preparation of lactams from or via oximes by Beckmann rearrangement
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D201/00—Preparation, separation, purification or stabilisation of unsubstituted lactams
    • C07D201/16—Separation or purification
    • 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
    • C07D223/08—Oxygen atoms
    • C07D223/10—Oxygen atoms attached in position 2
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D225/00—Heterocyclic compounds containing rings of more than seven members having one nitrogen atom as the only ring hetero atom
    • C07D225/02—Heterocyclic compounds containing rings of more than seven members having one nitrogen atom as the only ring hetero atom not condensed with other rings

Landscapes

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

Abstract

Caprylic lactam is obtained by rearrangement of cyclooctanone oxime, containing less than 1% by weight of water, with sulphuric acid containing from 80% to 81.7% by weight of sulphur trioxide at 108 DEG to 120 DEG C. Preferablly the cyclooctanone oxime contains 0.3% by weight of water and the temperature is from 111 DEG to 113 DEG C. In examples cyclooctanone oxime is reacted with sulphuric acid of various concentrations, the reaction mixture is neutralized with ammonia, and the caprylic lactam separated by extraction with benzene.
GB15037/61A 1960-04-30 1961-04-26 Production of caprylic lactam Expired GB911806A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB57675A DE1158076B (en) 1960-04-30 1960-04-30 Process for the production of caprylic lactam

Publications (1)

Publication Number Publication Date
GB911806A true GB911806A (en) 1962-11-28

Family

ID=6971793

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15037/61A Expired GB911806A (en) 1960-04-30 1961-04-26 Production of caprylic lactam

Country Status (2)

Country Link
DE (1) DE1158076B (en)
GB (1) GB911806A (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE753046C (en) * 1939-05-06 1953-01-05 Ig Farbenindustrie Ag Procedure for rearrangement of ketoximes

Also Published As

Publication number Publication date
DE1158076B (en) 1963-11-28

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