FR2234291B1 - - Google Patents
Info
- Publication number
- FR2234291B1 FR2234291B1 FR7421684A FR7421684A FR2234291B1 FR 2234291 B1 FR2234291 B1 FR 2234291B1 FR 7421684 A FR7421684 A FR 7421684A FR 7421684 A FR7421684 A FR 7421684A FR 2234291 B1 FR2234291 B1 FR 2234291B1
- Authority
- FR
- France
- 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 |
---|---|
FR2234291A1 FR2234291A1 (fr) | 1975-01-17 |
FR2234291B1 true FR2234291B1 (fr) | 1980-01-25 |
Family
ID=27509238
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7421684A Expired FR2234291B1 (fr) | 1973-06-25 | 1974-06-21 |
Country Status (19)
Country | Link |
---|---|
JP (1) | JPS5929589B2 (fr) |
AR (1) | AR202653A1 (fr) |
AT (1) | AT338262B (fr) |
BG (1) | BG27080A3 (fr) |
CA (1) | CA1027950A (fr) |
DD (1) | DD112443A5 (fr) |
DE (1) | DE2429937A1 (fr) |
DK (1) | DK139678B (fr) |
FI (1) | FI190574A (fr) |
FR (1) | FR2234291B1 (fr) |
GB (1) | GB1461703A (fr) |
HU (1) | HU176761B (fr) |
IE (1) | IE39523B1 (fr) |
IL (1) | IL45095A (fr) |
IT (1) | IT1021057B (fr) |
LU (1) | LU70387A1 (fr) |
NL (1) | NL190846C (fr) |
NO (1) | NO742255L (fr) |
SE (1) | SE403478B (fr) |
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 (fr) | 2018-12-07 | 2021-02-03 | Evonik Operations GmbH | Procédé amélioré de production de la triacétonamine |
EP3750876A1 (fr) | 2019-06-13 | 2020-12-16 | Evonik Operations GmbH | Procédé de production de triacetonamine, de 2,2,4,6-tétraméthylpipéridine et / ou de sels de la 2,2,4,6-tétraméthylpipéridine |
US11731940B2 (en) | 2020-05-07 | 2023-08-22 | Evonik Operations Gmbh | Process for preparing triacetonamine |
EP4279484A1 (fr) | 2022-05-17 | 2023-11-22 | Sabo GmbH | Procédé amélioré de production de triacétonamine |
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 DK DK330874AA patent/DK139678B/da unknown
- 1974-06-20 SE SE7408172A patent/SE403478B/xx unknown
- 1974-06-20 FI FI1905/74A patent/FI190574A/fi unknown
- 1974-06-20 NO NO742255A patent/NO742255L/no unknown
- 1974-06-21 HU HUCI001483 patent/HU176761B/hu unknown
- 1974-06-21 AT AT517774A patent/AT338262B/de not_active IP Right Cessation
- 1974-06-21 GB GB2760474A patent/GB1461703A/en not_active Expired
- 1974-06-21 DD DD179373A patent/DD112443A5/xx unknown
- 1974-06-21 AR AR254314A patent/AR202653A1/es active
- 1974-06-21 CA CA203,059A patent/CA1027950A/fr not_active Expired
- 1974-06-21 FR FR7421684A patent/FR2234291B1/fr not_active Expired
- 1974-06-21 IT IT24300/74A patent/IT1021057B/it active
- 1974-06-21 NL NL7408409A patent/NL190846C/xx not_active IP Right Cessation
- 1974-06-21 JP JP49071215A patent/JPS5929589B2/ja not_active Expired
- 1974-06-21 IE IE1302/74A patent/IE39523B1/xx unknown
- 1974-06-21 BG BG7427040A patent/BG27080A3/xx unknown
- 1974-06-21 LU LU70387*A patent/LU70387A1/xx unknown
- 1974-06-21 IL IL45095A patent/IL45095A/en unknown
- 1974-06-21 DE DE2429937A patent/DE2429937A1/de active Granted
Also Published As
Publication number | Publication date |
---|---|
IT1021057B (it) | 1978-01-30 |
DK139678C (fr) | 1979-09-10 |
NL7408409A (fr) | 1974-12-30 |
ATA517774A (de) | 1976-12-15 |
SE7408172L (fr) | 1974-12-27 |
IE39523B1 (en) | 1978-10-25 |
BG27080A3 (fr) | 1979-08-15 |
CA1027950A (fr) | 1978-03-14 |
DE2429937C2 (fr) | 1988-01-28 |
FR2234291A1 (fr) | 1975-01-17 |
AT338262B (de) | 1977-08-10 |
GB1461703A (en) | 1977-01-19 |
DE2429937A1 (de) | 1975-01-16 |
DK139678B (da) | 1979-03-26 |
NL190846B (nl) | 1994-04-18 |
SE403478B (sv) | 1978-08-21 |
DK330874A (fr) | 1975-02-17 |
AR202653A1 (es) | 1975-06-30 |
NO742255L (fr) | 1975-01-20 |
FI190574A (fr) | 1974-12-26 |
HU176761B (en) | 1981-05-28 |
IE39523L (en) | 1974-12-25 |
JPS5036473A (fr) | 1975-04-05 |
NL190846C (nl) | 1994-09-16 |
LU70387A1 (fr) | 1976-04-13 |
AU7043274A (en) | 1976-01-08 |
DD112443A5 (de) | 1975-04-12 |
IL45095A (en) | 1977-05-31 |
JPS5929589B2 (ja) | 1984-07-21 |
IL45095A0 (en) | 1974-09-10 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |