IE39523B1 - 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
- IE39523B1 IE39523B1 IE1302/74A IE130274A IE39523B1 IE 39523 B1 IE39523 B1 IE 39523B1 IE 1302/74 A IE1302/74 A IE 1302/74A IE 130274 A IE130274 A IE 130274A IE 39523 B1 IE39523 B1 IE 39523B1
- Authority
- IE
- Ireland
- Prior art keywords
- acetone
- acid
- ammonia
- triacetoneamine
- april
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Hydrogenated Pyridines (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Catalysts (AREA)
Abstract
1461703 Triacetoneamine CIBA-GEIGY AG 21 June 1974 [25 June 1973 5 Oct 1973 19 April 1974 24 April 1974 22 May 1974] 27604/74 Heading C2C 2,2,6,6 - Tetramethyl - 4 - oxopiperidine (triacetoneamine) is prepared by (a) reacting acetone with ammonia at 5-60‹ C. in the presence of 0À2-1À2 mol. per cent, relative to the acetone, of an acid catalyst and (b) completing the reaction by further heating with or without the addition of further acetone and/or diacetone alcohol, mesityl oxide, phorone, diacetoneamine or triacetonediamine; these acetone derivatives may also be present in stage (a), and some of the acetone in stage (a) may be replaced by diacetone alcohol and/or mesityl oxide; the total acetone (or acetone + acetone derivative) employed is at least 1À6 moles per mole ammonia. The acid catalyst may be a Lewis acid (e.g. AlCl 3 , SnCl 4 , BF 3 ), a proton acid (e.g. a mineral, sulphonic, phosphonic, phosphinic or carboxylic acid) or a salt of a proton acid with ammonia or a nitrogencontaining organic base. Other salts, bromine and iodine, are listed as possible co-catalysts. Solvents may be used, e.g. hydrocarbons, ethers, nitriles, aprotic polar solvents and alcohols, especially C 1 -C 4 alcohols. The product may be isolated as such, or as its hydrate or salt with, for example, sulphuric, hydrochloric or oxalic acid.
[GB1461703A]
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 |
|---|---|
| IE39523L IE39523L (en) | 1974-12-25 |
| IE39523B1 true IE39523B1 (en) | 1978-10-25 |
Family
ID=27509238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IE1302/74A IE39523B1 (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 |
| DE102012215900A1 (en) | 2012-09-07 | 2014-05-15 | Evonik Industries Ag | Process for the preparation and processing of a triacetonamine-containing reaction mixture |
| 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 |
| 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 DE DE2429937A patent/DE2429937A1/en active Granted
- 1974-06-21 AR AR254314A patent/AR202653A1/en active
- 1974-06-21 IL IL45095A patent/IL45095A/en unknown
- 1974-06-21 NL NL7408409A patent/NL190846C/en not_active IP Right Cessation
- 1974-06-21 IT IT24300/74A patent/IT1021057B/en active
- 1974-06-21 BG BG027040A patent/BG27080A3/en unknown
- 1974-06-21 HU HUCI001483 patent/HU176761B/en unknown
- 1974-06-21 AT AT517774A patent/AT338262B/en not_active IP Right Cessation
- 1974-06-21 JP JP49071215A patent/JPS5929589B2/en not_active Expired
- 1974-06-21 GB GB2760474A patent/GB1461703A/en not_active Expired
- 1974-06-21 CA CA203,059A patent/CA1027950A/en not_active Expired
- 1974-06-21 FR FR7421684A patent/FR2234291B1/fr not_active Expired
- 1974-06-21 DD DD179373A patent/DD112443A5/en unknown
- 1974-06-21 IE IE1302/74A patent/IE39523B1/en unknown
- 1974-06-21 LU LU70387*A patent/LU70387A1/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| IL45095A (en) | 1977-05-31 |
| NL190846C (en) | 1994-09-16 |
| FR2234291A1 (en) | 1975-01-17 |
| SE403478B (en) | 1978-08-21 |
| BG27080A3 (en) | 1979-08-15 |
| AU7043274A (en) | 1976-01-08 |
| CA1027950A (en) | 1978-03-14 |
| IE39523L (en) | 1974-12-25 |
| DE2429937A1 (en) | 1975-01-16 |
| DK330874A (en) | 1975-02-17 |
| IT1021057B (en) | 1978-01-30 |
| DD112443A5 (en) | 1975-04-12 |
| ATA517774A (en) | 1976-12-15 |
| JPS5929589B2 (en) | 1984-07-21 |
| DK139678B (en) | 1979-03-26 |
| FR2234291B1 (en) | 1980-01-25 |
| DE2429937C2 (en) | 1988-01-28 |
| DK139678C (en) | 1979-09-10 |
| HU176761B (en) | 1981-05-28 |
| LU70387A1 (en) | 1976-04-13 |
| AT338262B (en) | 1977-08-10 |
| AR202653A1 (en) | 1975-06-30 |
| FI190574A (en) | 1974-12-26 |
| SE7408172L (en) | 1974-12-27 |
| GB1461703A (en) | 1977-01-19 |
| JPS5036473A (en) | 1975-04-05 |
| NL7408409A (en) | 1974-12-30 |
| NO742255L (en) | 1975-01-20 |
| NL190846B (en) | 1994-04-18 |
| IL45095A0 (en) | 1974-09-10 |
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