DE2429937C2 - - Google Patents
Info
- Publication number
- DE2429937C2 DE2429937C2 DE2429937A DE2429937A DE2429937C2 DE 2429937 C2 DE2429937 C2 DE 2429937C2 DE 2429937 A DE2429937 A DE 2429937A DE 2429937 A DE2429937 A DE 2429937A DE 2429937 C2 DE2429937 C2 DE 2429937C2
- Authority
- DE
- Germany
- Prior art keywords
- acetone
- acid
- lithium
- ammonia
- reaction
- 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
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)
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 |
|---|---|
| DE2429937A1 DE2429937A1 (de) | 1975-01-16 |
| DE2429937C2 true DE2429937C2 (xx) | 1988-01-28 |
Family
ID=27509238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2429937A Granted DE2429937A1 (de) | 1973-06-25 | 1974-06-21 | Verfahren zur herstellung von 2,2,6,6tetramethyl-4-oxo-piperidin |
Country Status (19)
| Country | Link |
|---|---|
| JP (1) | JPS5929589B2 (xx) |
| AR (1) | AR202653A1 (xx) |
| AT (1) | AT338262B (xx) |
| BG (1) | BG27080A3 (xx) |
| CA (1) | CA1027950A (xx) |
| DD (1) | DD112443A5 (xx) |
| DE (1) | DE2429937A1 (xx) |
| DK (1) | DK139678B (xx) |
| FI (1) | FI190574A (xx) |
| FR (1) | FR2234291B1 (xx) |
| GB (1) | GB1461703A (xx) |
| HU (1) | HU176761B (xx) |
| IE (1) | IE39523B1 (xx) |
| IL (1) | IL45095A (xx) |
| IT (1) | IT1021057B (xx) |
| LU (1) | LU70387A1 (xx) |
| NL (1) | NL190846C (xx) |
| NO (1) | NO742255L (xx) |
| SE (1) | SE403478B (xx) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2807172A1 (de) * | 1978-02-20 | 1979-08-23 | Huels Chemische Werke Ag | Verfahren zur herstellung von 2,2,6,6-tetramethylpiperidon-(4) |
| IT1094039B (it) * | 1978-03-31 | 1985-07-26 | Chimosa Chimica Organica Spa | Processo per la preparazione di 2,2,6,6-tetrametil-4-piperidone |
| US4275211A (en) * | 1978-11-17 | 1981-06-23 | Ciba-Geigy Corporation | Process for preparing 2,2,6,6-tetraalkyl-4-oxopiperidines |
| DE2916471A1 (de) * | 1979-04-24 | 1980-11-06 | Hoechst Ag | Verfahren zur herstellung von 2,2, 6,6-tetramethylpiperidon-4 |
| DE3013403A1 (de) * | 1980-04-05 | 1981-10-08 | Hoechst Ag, 6000 Frankfurt | Verfahren zur herstellung von 2,2,6,6-tetramethylpiperdon-4 |
| DE3119514A1 (de) * | 1981-05-15 | 1983-02-24 | Empresa Cubana Exportadora e Importadora de Productos Médicos Medicuba, La Habana | Triacetonaminhydrochlorid, verfahren zu seiner herstellung und arzneimittel |
| JPH0739389B2 (ja) * | 1986-03-03 | 1995-05-01 | 吉富製薬株式会社 | ２，２，６，６−テトラメチル−４−オキソピペリジンの製造方法 |
| DE19634157A1 (de) * | 1996-08-23 | 1998-02-26 | Basf Ag | Verfahren zur Herstellung von 2,2,6,6-Tetramethylpiperidin-4-on |
| DE102012215903A1 (de) | 2012-09-07 | 2014-03-13 | Evonik Industries Ag | Verfahren zur Behandlung eines Abwasserstroms, der bei der Aufarbeitung eines Triacetonamin-haltigen Reaktionsgemisches entsteht |
| DE102012215900A1 (de) | 2012-09-07 | 2014-05-15 | Evonik Industries Ag | Verfahren zur Herstellung und Aufarbeitung eines Triacetonamin-haltigen Reaktionsgemisches |
| EP3663284B1 (de) | 2018-12-07 | 2021-02-03 | Evonik Operations GmbH | Verbessertes verfahren zur herstellung von triacetonamin |
| EP3750876A1 (de) | 2019-06-13 | 2020-12-16 | Evonik Operations GmbH | Verfahren zur herstellung von triacetonamin, 2,2,4,6-tetramethylpiperidin und/oder den salzen des 2,2,4,6-tetramethylpiperidins |
| US11731940B2 (en) | 2020-05-07 | 2023-08-22 | Evonik Operations Gmbh | Process for preparing triacetonamine |
| EP4279484A1 (de) | 2022-05-17 | 2023-11-22 | Sabo GmbH | Verbessertes verfahren zur herstellung von triacetonamin |
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 DK DK330874AA patent/DK139678B/da unknown
- 1974-06-20 SE SE7408172A patent/SE403478B/xx unknown
- 1974-06-21 GB GB2760474A patent/GB1461703A/en not_active Expired
- 1974-06-21 NL NL7408409A patent/NL190846C/xx not_active IP Right Cessation
- 1974-06-21 CA CA203,059A patent/CA1027950A/en not_active Expired
- 1974-06-21 IT IT24300/74A patent/IT1021057B/it active
- 1974-06-21 IL IL45095A patent/IL45095A/en unknown
- 1974-06-21 FR FR7421684A patent/FR2234291B1/fr not_active Expired
- 1974-06-21 DE DE2429937A patent/DE2429937A1/de active Granted
- 1974-06-21 AT AT517774A patent/AT338262B/de not_active IP Right Cessation
- 1974-06-21 DD DD179373A patent/DD112443A5/xx unknown
- 1974-06-21 JP JP49071215A patent/JPS5929589B2/ja not_active Expired
- 1974-06-21 IE IE1302/74A patent/IE39523B1/xx unknown
- 1974-06-21 LU LU70387*A patent/LU70387A1/xx unknown
- 1974-06-21 HU HUCI001483 patent/HU176761B/hu unknown
- 1974-06-21 BG BG7427040A patent/BG27080A3/xx unknown
- 1974-06-21 AR AR254314A patent/AR202653A1/es active
Also Published As
| Publication number | Publication date |
|---|---|
| ATA517774A (de) | 1976-12-15 |
| SE403478B (sv) | 1978-08-21 |
| IL45095A (en) | 1977-05-31 |
| NL7408409A (xx) | 1974-12-30 |
| IE39523L (en) | 1974-12-25 |
| GB1461703A (en) | 1977-01-19 |
| DE2429937A1 (de) | 1975-01-16 |
| IL45095A0 (en) | 1974-09-10 |
| AT338262B (de) | 1977-08-10 |
| DD112443A5 (de) | 1975-04-12 |
| AR202653A1 (es) | 1975-06-30 |
| DK139678B (da) | 1979-03-26 |
| JPS5036473A (xx) | 1975-04-05 |
| CA1027950A (en) | 1978-03-14 |
| FI190574A (xx) | 1974-12-26 |
| NL190846B (nl) | 1994-04-18 |
| SE7408172L (xx) | 1974-12-27 |
| DK139678C (xx) | 1979-09-10 |
| HU176761B (en) | 1981-05-28 |
| NO742255L (xx) | 1975-01-20 |
| DK330874A (xx) | 1975-02-17 |
| AU7043274A (en) | 1976-01-08 |
| IT1021057B (it) | 1978-01-30 |
| JPS5929589B2 (ja) | 1984-07-21 |
| BG27080A3 (xx) | 1979-08-15 |
| NL190846C (nl) | 1994-09-16 |
| IE39523B1 (en) | 1978-10-25 |
| FR2234291A1 (xx) | 1975-01-17 |
| FR2234291B1 (xx) | 1980-01-25 |
| LU70387A1 (xx) | 1976-04-13 |
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| DE2429937C2 (xx) | ||
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OD | Request for examination | ||
| 8128 | New person/name/address of the agent |
Representative=s name: ASSMANN, E., DIPL.-CHEM. DR.RER.NAT. ZUMSTEIN, F., |
|
| D2 | Grant after examination | ||
| 8363 | Opposition against the patent | ||
| 8339 | Ceased/non-payment of the annual fee |