AT338262B - 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-OXOPIPERIDINEInfo
- Publication number
- AT338262B AT338262B AT517774A AT517774A AT338262B AT 338262 B AT338262 B AT 338262B AT 517774 A AT517774 A AT 517774A AT 517774 A AT517774 A AT 517774A AT 338262 B AT338262 B AT 338262B
- Authority
- AT
- Austria
- Prior art keywords
- oxopiperidine
- tetramethyl
- preparation
- Prior art date
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
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 (2)
| Publication Number | Publication Date |
|---|---|
| ATA517774A ATA517774A (en) | 1976-12-15 |
| AT338262B true AT338262B (en) | 1977-08-10 |
Family
ID=27509238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT517774A AT338262B (en) | 1973-06-25 | 1974-06-21 | 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)
| 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 |
| 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 |
| DE102012215900A1 (en) | 2012-09-07 | 2014-05-15 | Evonik Industries Ag | Process for the preparation and processing 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)
| 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 |
-
1974
- 1974-06-20 NO NO742255A patent/NO742255L/no unknown
- 1974-06-20 FI FI1905/74A patent/FI190574A/fi unknown
- 1974-06-20 SE SE7408172A patent/SE403478B/en unknown
- 1974-06-20 DK DK330874AA patent/DK139678B/en unknown
- 1974-06-21 HU HUCI001483 patent/HU176761B/en unknown
- 1974-06-21 AR AR254314A patent/AR202653A1/en active
- 1974-06-21 DE DE2429937A patent/DE2429937A1/en active Granted
- 1974-06-21 LU LU70387*A patent/LU70387A1/xx unknown
- 1974-06-21 FR FR7421684A patent/FR2234291B1/fr not_active Expired
- 1974-06-21 IL IL45095A patent/IL45095A/en unknown
- 1974-06-21 BG BG7427040A patent/BG27080A3/xx unknown
- 1974-06-21 GB GB2760474A patent/GB1461703A/en not_active Expired
- 1974-06-21 IT IT24300/74A patent/IT1021057B/en active
- 1974-06-21 CA CA203,059A patent/CA1027950A/en not_active Expired
- 1974-06-21 JP JP49071215A patent/JPS5929589B2/en not_active Expired
- 1974-06-21 IE IE1302/74A patent/IE39523B1/en unknown
- 1974-06-21 NL NL7408409A patent/NL190846C/en not_active IP Right Cessation
- 1974-06-21 AT AT517774A patent/AT338262B/en not_active IP Right Cessation
- 1974-06-21 DD DD179373A patent/DD112443A5/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| AR202653A1 (en) | 1975-06-30 |
| DD112443A5 (en) | 1975-04-12 |
| NL190846B (en) | 1994-04-18 |
| LU70387A1 (en) | 1976-04-13 |
| BG27080A3 (en) | 1979-08-15 |
| CA1027950A (en) | 1978-03-14 |
| IT1021057B (en) | 1978-01-30 |
| NL7408409A (en) | 1974-12-30 |
| FR2234291B1 (en) | 1980-01-25 |
| NL190846C (en) | 1994-09-16 |
| IE39523B1 (en) | 1978-10-25 |
| IE39523L (en) | 1974-12-25 |
| FI190574A (en) | 1974-12-26 |
| JPS5036473A (en) | 1975-04-05 |
| SE403478B (en) | 1978-08-21 |
| GB1461703A (en) | 1977-01-19 |
| DK139678C (en) | 1979-09-10 |
| ATA517774A (en) | 1976-12-15 |
| SE7408172L (en) | 1974-12-27 |
| NO742255L (en) | 1975-01-20 |
| HU176761B (en) | 1981-05-28 |
| IL45095A0 (en) | 1974-09-10 |
| DK139678B (en) | 1979-03-26 |
| JPS5929589B2 (en) | 1984-07-21 |
| AU7043274A (en) | 1976-01-08 |
| DK330874A (en) | 1975-02-17 |
| DE2429937C2 (en) | 1988-01-28 |
| IL45095A (en) | 1977-05-31 |
| FR2234291A1 (en) | 1975-01-17 |
| DE2429937A1 (en) | 1975-01-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ELJ | Ceased due to non-payment of the annual fee |