DK139678B - Process for the preparation of 2,2,6,6-tetramethyl-4-oxopiperidine. - Google Patents

Process for the preparation of 2,2,6,6-tetramethyl-4-oxopiperidine.

Info

Publication number
DK139678B
DK139678B DK330874AA DK330874A DK139678B DK 139678 B DK139678 B DK 139678B DK 330874A A DK330874A A DK 330874AA DK 330874 A DK330874 A DK 330874A DK 139678 B DK139678 B DK 139678B
Authority
DK
Denmark
Prior art keywords
oxopiperidine
tetramethyl
preparation
Prior art date
Application number
DK330874AA
Other languages
Danish (da)
Other versions
DK139678C (en
DK330874A (en
Inventor
Ivan Orban
Hanns Lind
Heimo Brunetti
Jean Rody
Michael Rasberger
Original Assignee
Ciba Geigy 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
Priority claimed from CH924173A external-priority patent/CH574412A5/en
Priority claimed from CH701874A external-priority patent/CH582147A5/en
Application filed by Ciba Geigy Ag filed Critical Ciba Geigy Ag
Publication of DK330874A publication Critical patent/DK330874A/da
Publication of DK139678B publication Critical patent/DK139678B/en
Application granted granted Critical
Publication of DK139678C publication Critical patent/DK139678C/da

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D211/00—Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings
    • C07D211/04—Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom
    • C07D211/68—Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having one double bond between ring members or between a ring member and a non-ring member
    • C07D211/72—Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having one double bond between ring members or between a ring member and a non-ring member with hetero atoms or with carbon atoms having three bonds to hetero atoms, with at the most one bond to halogen, directly attached to ring carbon atoms
    • C07D211/74—Oxygen atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D211/00—Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings
    • C07D211/02—Preparation by ring-closure or hydrogenation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Hydrogenated Pyridines (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Catalysts (AREA)
DK330874AA 1973-06-25 1974-06-20 Process for the preparation of 2,2,6,6-tetramethyl-4-oxopiperidine. DK139678B (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
CH924173A CH574412A5 (en) 1973-06-25 1973-06-25 2,2,6,6-Tetra-methyl-4-oxo-piperidine prepn. - from acetone and ammonia with acid catalyst in two stages with addn. of further acetone in second stage
CH1425773 1973-10-05
CH543974 1974-04-19
CH559974 1974-04-24
CH701874A CH582147A5 (en) 1974-05-22 1974-05-22 2,2,6,6-Tetra-methyl-4-oxo-piperidine prepn. - from acetone and ammonia with acid catalyst in two stages with addn. of further acetone in second stage

Publications (3)

Publication Number Publication Date
DK330874A DK330874A (en) 1975-02-17
DK139678B true DK139678B (en) 1979-03-26
DK139678C DK139678C (en) 1979-09-10

Family

ID=27509238

Family Applications (1)

Application Number Title Priority Date Filing Date
DK330874AA DK139678B (en) 1973-06-25 1974-06-20 Process for the preparation of 2,2,6,6-tetramethyl-4-oxopiperidine.

Country Status (19)

Country Link
JP (1) JPS5929589B2 (en)
AR (1) AR202653A1 (en)
AT (1) AT338262B (en)
BG (1) BG27080A3 (en)
CA (1) CA1027950A (en)
DD (1) DD112443A5 (en)
DE (1) DE2429937A1 (en)
DK (1) DK139678B (en)
FI (1) FI190574A (en)
FR (1) FR2234291B1 (en)
GB (1) GB1461703A (en)
HU (1) HU176761B (en)
IE (1) IE39523B1 (en)
IL (1) IL45095A (en)
IT (1) IT1021057B (en)
LU (1) LU70387A1 (en)
NL (1) NL190846C (en)
NO (1) NO742255L (en)
SE (1) SE403478B (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2807172A1 (en) * 1978-02-20 1979-08-23 Huels Chemische Werke Ag METHOD FOR PREPARING 2,2,6,6-TETRAMETHYLPIPERIDONE- (4)
IT1094039B (en) * 1978-03-31 1985-07-26 Chimosa Chimica Organica Spa PROCESS FOR THE PREPARATION OF 2,2,6,6-TETRAMETHY-4-PIPERIDONE
US4275211A (en) * 1978-11-17 1981-06-23 Ciba-Geigy Corporation Process for preparing 2,2,6,6-tetraalkyl-4-oxopiperidines
DE2916471A1 (en) * 1979-04-24 1980-11-06 Hoechst Ag Tri:acetonamine prodn. from acetone and ammonia - under defined conditions using little or no catalyst
DE3013403A1 (en) * 1980-04-05 1981-10-08 Hoechst Ag, 6000 Frankfurt METHOD FOR PRODUCING 2,2,6,6-TETRAMETHYLPIPERDON-4
DE3119514A1 (en) * 1981-05-15 1983-02-24 Empresa Cubana Exportadora e Importadora de Productos Médicos Medicuba, La Habana Triacetoneamine hydrochloride, process for its preparation and medicaments
JPH0739389B2 (en) * 1986-03-03 1995-05-01 吉富製薬株式会社 Method for producing 2,2,6,6-tetramethyl-4-oxopiperidine
DE19634157A1 (en) * 1996-08-23 1998-02-26 Basf Ag Process for the preparation of 2,2,6,6-tetramethylpiperidin-4-one
DE102012215900A1 (en) 2012-09-07 2014-05-15 Evonik Industries Ag Process for the preparation and processing of a triacetonamine-containing reaction mixture
DE102012215903A1 (en) 2012-09-07 2014-03-13 Evonik Industries Ag Process for the treatment of a wastewater stream, which results from the workup of a triacetonamine-containing reaction mixture
EP3663284B1 (en) 2018-12-07 2021-02-03 Evonik Operations GmbH Improved method for the preparation of triacetonamine
EP3750876A1 (en) 2019-06-13 2020-12-16 Evonik Operations GmbH Method for preparing triacetone amine, 2,2,4,6-tetramethylpiperidine and/or the salts of 2,2,4,6-tetramethylpiperidine
US11731940B2 (en) 2020-05-07 2023-08-22 Evonik Operations Gmbh Process for preparing triacetonamine
EP4279484A1 (en) 2022-05-17 2023-11-22 Sabo GmbH Improved method for the preparation of triacetonamine

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3513170A (en) * 1966-07-23 1970-05-19 Sankyo Co Preparation of 2,2,6,6-tetramethyl-4-oxopiperidine

Also Published As

Publication number Publication date
IE39523L (en) 1974-12-25
NL190846B (en) 1994-04-18
ATA517774A (en) 1976-12-15
NL7408409A (en) 1974-12-30
SE7408172L (en) 1974-12-27
DE2429937C2 (en) 1988-01-28
DE2429937A1 (en) 1975-01-16
DD112443A5 (en) 1975-04-12
GB1461703A (en) 1977-01-19
LU70387A1 (en) 1976-04-13
IE39523B1 (en) 1978-10-25
AU7043274A (en) 1976-01-08
IL45095A0 (en) 1974-09-10
FI190574A (en) 1974-12-26
BG27080A3 (en) 1979-08-15
IT1021057B (en) 1978-01-30
DK139678C (en) 1979-09-10
DK330874A (en) 1975-02-17
FR2234291B1 (en) 1980-01-25
AT338262B (en) 1977-08-10
NL190846C (en) 1994-09-16
SE403478B (en) 1978-08-21
NO742255L (en) 1975-01-20
IL45095A (en) 1977-05-31
HU176761B (en) 1981-05-28
AR202653A1 (en) 1975-06-30
JPS5929589B2 (en) 1984-07-21
FR2234291A1 (en) 1975-01-17
JPS5036473A (en) 1975-04-05
CA1027950A (en) 1978-03-14

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