CS200467B2 - Process for preparing 2,2,6,6-tetramethyl-4-oxopiperidine - Google Patents
Process for preparing 2,2,6,6-tetramethyl-4-oxopiperidine Download PDFInfo
- Publication number
- CS200467B2 CS200467B2 CS744395A CS439574A CS200467B2 CS 200467 B2 CS200467 B2 CS 200467B2 CS 744395 A CS744395 A CS 744395A CS 439574 A CS439574 A CS 439574A CS 200467 B2 CS200467 B2 CS 200467B2
- Authority
- CS
- Czechoslovakia
- Prior art keywords
- acetone
- acetonine
- water
- hydrate
- process according
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Hydrogenated Pyridines (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH950673A CH574413A5 (en) | 1973-06-29 | 1973-06-29 | 2,2,6,6-Tetra-methyl-4-oxo-piperidine prepn. - from 2,2,4,4,6-penta-methyl-2,3,4,5-tetra-hydro-pyrimidine by heating in anhydrous medium |
| CH544074A CH582145A5 (en) | 1974-04-19 | 1974-04-19 | 2,2,6,6-Tetra-methyl-4-oxo-piperidine prepn. - from 2,2,4,4,6-penta-methyl-2,3,4,5-tetra-hydro-pyrimidine by heating in anhydrous medium |
| CH701974 | 1974-05-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CS200467B2 true CS200467B2 (en) | 1980-09-15 |
Family
ID=27175211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CS744395A CS200467B2 (en) | 1973-06-29 | 1974-06-21 | Process for preparing 2,2,6,6-tetramethyl-4-oxopiperidine |
Country Status (25)
| Country | Link |
|---|---|
| US (1) | US3960875A (es) |
| JP (1) | JPS5036474A (es) |
| AR (1) | AR208393A1 (es) |
| AT (1) | AT338263B (es) |
| BG (1) | BG27081A3 (es) |
| BR (1) | BR7405080D0 (es) |
| CA (1) | CA1027952A (es) |
| CS (1) | CS200467B2 (es) |
| DD (1) | DD112444A5 (es) |
| DE (1) | DE2429935C3 (es) |
| DK (1) | DK140406B (es) |
| EG (1) | EG11230A (es) |
| ES (1) | ES427548A1 (es) |
| FI (1) | FI190674A (es) |
| FR (1) | FR2235118B1 (es) |
| GB (1) | GB1461701A (es) |
| HU (1) | HU169841B (es) |
| IE (1) | IE39521B1 (es) |
| IL (1) | IL45092A (es) |
| IT (1) | IT1021055B (es) |
| LU (1) | LU70388A1 (es) |
| NL (1) | NL7408411A (es) |
| NO (1) | NO742233L (es) |
| RO (1) | RO67193A (es) |
| SE (1) | SE7408173L (es) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2916471A1 (de) * | 1979-04-24 | 1980-11-06 | Hoechst Ag | Verfahren zur herstellung von 2,2, 6,6-tetramethylpiperidon-4 |
| US4734502A (en) * | 1986-12-22 | 1988-03-29 | Ici Americas Inc. | Process for the preparation of 2,2,6,6-tetramethyl-4-oxopiperidine |
| DE102012215900A1 (de) | 2012-09-07 | 2014-05-15 | Evonik Industries Ag | Verfahren zur Herstellung und Aufarbeitung eines Triacetonamin-haltigen Reaktionsgemisches |
| 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 |
| CN108383776A (zh) * | 2018-05-01 | 2018-08-10 | 衡水凯亚化工有限公司 | 一种利用丙酮和合成三丙酮胺过程副产物制备三丙酮胺 |
| CN108484482A (zh) * | 2018-05-01 | 2018-09-04 | 衡水凯亚化工有限公司 | 一种利用合成三丙酮胺过程副产物制备三丙酮胺的方法 |
| 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
- 1974-01-01 AR AR254315A patent/AR208393A1/es active
- 1974-06-19 NO NO742233A patent/NO742233L/no unknown
- 1974-06-20 SE SE7408173A patent/SE7408173L/xx unknown
- 1974-06-20 DK DK330974AA patent/DK140406B/da unknown
- 1974-06-20 FI FI1906/74A patent/FI190674A/fi unknown
- 1974-06-21 AT AT517874A patent/AT338263B/de not_active IP Right Cessation
- 1974-06-21 IL IL45092A patent/IL45092A/en unknown
- 1974-06-21 CA CA203,061A patent/CA1027952A/en not_active Expired
- 1974-06-21 CS CS744395A patent/CS200467B2/cs unknown
- 1974-06-21 IT IT24296/74A patent/IT1021055B/it active
- 1974-06-21 BR BR5080/74A patent/BR7405080D0/pt unknown
- 1974-06-21 DE DE2429935A patent/DE2429935C3/de not_active Expired
- 1974-06-21 FR FR7421685A patent/FR2235118B1/fr not_active Expired
- 1974-06-21 GB GB2760274A patent/GB1461701A/en not_active Expired
- 1974-06-21 US US05/481,935 patent/US3960875A/en not_active Expired - Lifetime
- 1974-06-21 IE IE1300/74A patent/IE39521B1/xx unknown
- 1974-06-21 HU HUCI1484A patent/HU169841B/hu unknown
- 1974-06-21 LU LU70388*A patent/LU70388A1/xx unknown
- 1974-06-21 JP JP49071217A patent/JPS5036474A/ja active Pending
- 1974-06-21 ES ES427548A patent/ES427548A1/es not_active Expired
- 1974-06-21 RO RO7479252A patent/RO67193A/ro unknown
- 1974-06-21 NL NL7408411A patent/NL7408411A/xx not_active Application Discontinuation
- 1974-06-21 BG BG027041A patent/BG27081A3/xx not_active Expired
- 1974-06-21 DD DD179371A patent/DD112444A5/xx unknown
- 1974-06-24 EG EG242/74A patent/EG11230A/xx active
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5036474A (es) | 1975-04-05 |
| NL7408411A (es) | 1974-12-31 |
| BR7405080D0 (pt) | 1975-01-21 |
| FI190674A (es) | 1974-12-30 |
| DK140406B (da) | 1979-08-20 |
| FR2235118B1 (es) | 1978-01-13 |
| SE7408173L (es) | 1974-12-30 |
| US3960875A (en) | 1976-06-01 |
| AU7033774A (en) | 1976-01-08 |
| IL45092A (en) | 1976-12-31 |
| EG11230A (en) | 1977-01-31 |
| DE2429935B2 (de) | 1980-10-02 |
| ATA517874A (de) | 1976-12-15 |
| CA1027952A (en) | 1978-03-14 |
| AT338263B (de) | 1977-08-10 |
| DK140406C (es) | 1980-01-21 |
| ES427548A1 (es) | 1976-08-01 |
| RO67193A (fr) | 1979-06-15 |
| IT1021055B (it) | 1978-01-30 |
| IE39521L (en) | 1974-12-26 |
| HU169841B (es) | 1977-02-28 |
| DE2429935A1 (de) | 1975-01-16 |
| DD112444A5 (es) | 1975-04-12 |
| AR208393A1 (es) | 1976-12-27 |
| NO742233L (es) | 1975-01-27 |
| FR2235118A1 (es) | 1975-01-24 |
| IE39521B1 (en) | 1978-10-25 |
| LU70388A1 (es) | 1976-04-13 |
| IL45092A0 (en) | 1974-09-10 |
| BG27081A3 (bg) | 1979-08-15 |
| GB1461701A (en) | 1977-01-19 |
| DE2429935C3 (de) | 1981-07-23 |
| DK330974A (es) | 1975-02-17 |
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