DK139678C - - Google Patents
Info
- Publication number
- DK139678C DK139678C DK330874A DK330874A DK139678C DK 139678 C DK139678 C DK 139678C DK 330874 A DK330874 A DK 330874A DK 330874 A DK330874 A DK 330874A DK 139678 C DK139678 C DK 139678C
- Authority
- DK
- Denmark
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 (3)
| Publication Number | Publication Date |
|---|---|
| DK330874A DK330874A (en) | 1975-02-17 |
| DK139678B DK139678B (en) | 1979-03-26 |
| DK139678C true 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)
| 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 SE SE7408172A patent/SE403478B/en unknown
- 1974-06-20 FI FI1905/74A patent/FI190574A/fi unknown
- 1974-06-20 DK DK330874AA patent/DK139678B/en unknown
- 1974-06-20 NO NO742255A patent/NO742255L/no unknown
- 1974-06-21 IL IL45095A patent/IL45095A/en unknown
- 1974-06-21 DE DE2429937A patent/DE2429937A1/en active Granted
- 1974-06-21 DD DD179373A patent/DD112443A5/en unknown
- 1974-06-21 GB GB2760474A patent/GB1461703A/en not_active Expired
- 1974-06-21 LU LU70387*A patent/LU70387A1/xx unknown
- 1974-06-21 FR FR7421684A patent/FR2234291B1/fr not_active Expired
- 1974-06-21 JP JP49071215A patent/JPS5929589B2/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 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 AR AR254314A patent/AR202653A1/en active
- 1974-06-21 HU HUCI001483 patent/HU176761B/en unknown
- 1974-06-21 BG BG027040A patent/BG27080A3/en unknown
- 1974-06-21 IE IE1302/74A patent/IE39523B1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR2234291A1 (en) | 1975-01-17 |
| AU7043274A (en) | 1976-01-08 |
| DD112443A5 (en) | 1975-04-12 |
| IE39523B1 (en) | 1978-10-25 |
| JPS5036473A (en) | 1975-04-05 |
| NL7408409A (en) | 1974-12-30 |
| GB1461703A (en) | 1977-01-19 |
| DK139678B (en) | 1979-03-26 |
| DE2429937C2 (en) | 1988-01-28 |
| IL45095A0 (en) | 1974-09-10 |
| DK330874A (en) | 1975-02-17 |
| NO742255L (en) | 1975-01-20 |
| SE7408172L (en) | 1974-12-27 |
| FR2234291B1 (en) | 1980-01-25 |
| IL45095A (en) | 1977-05-31 |
| IE39523L (en) | 1974-12-25 |
| HU176761B (en) | 1981-05-28 |
| AT338262B (en) | 1977-08-10 |
| BG27080A3 (en) | 1979-08-15 |
| IT1021057B (en) | 1978-01-30 |
| AR202653A1 (en) | 1975-06-30 |
| FI190574A (en) | 1974-12-26 |
| SE403478B (en) | 1978-08-21 |
| ATA517774A (en) | 1976-12-15 |
| JPS5929589B2 (en) | 1984-07-21 |
| DE2429937A1 (en) | 1975-01-16 |
| CA1027950A (en) | 1978-03-14 |
| LU70387A1 (en) | 1976-04-13 |
| NL190846C (en) | 1994-09-16 |
| NL190846B (en) | 1994-04-18 |