GB2012748B - Process for preparing 2-pyrrolidone - Google Patents
Process for preparing 2-pyrrolidoneInfo
- Publication number
- GB2012748B GB2012748B GB791179A GB7901179A GB2012748B GB 2012748 B GB2012748 B GB 2012748B GB 791179 A GB791179 A GB 791179A GB 7901179 A GB7901179 A GB 7901179A GB 2012748 B GB2012748 B GB 2012748B
- Authority
- GB
- United Kingdom
- Prior art keywords
- pyrrolidone
- preparing
- 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
- C07D207/00—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom
- C07D207/02—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D207/18—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom 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
- C07D207/22—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom 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, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D207/24—Oxygen or sulfur atoms
- C07D207/26—2-Pyrrolidones
- C07D207/263—2-Pyrrolidones with only hydrogen atoms or radicals containing only hydrogen and carbon atoms directly attached to other ring carbon atoms
- C07D207/267—2-Pyrrolidones with only hydrogen atoms or radicals containing only hydrogen and carbon atoms directly attached to other ring carbon atoms with only hydrogen atoms or radicals containing only hydrogen and carbon atoms directly attached to the ring nitrogen atom
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D201/00—Preparation, separation, purification or stabilisation of unsubstituted lactams
- C07D201/02—Preparation of lactams
- C07D201/08—Preparation of lactams from carboxylic acids or derivatives thereof, e.g. hydroxy carboxylic acids, lactones or nitriles
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pyrrole Compounds (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Catalysts (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL7800644A NL7800644A (nl) | 1978-01-19 | 1978-01-19 | Werkwijze voor de bereiding van 2-pyrrolidon. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB2012748A GB2012748A (en) | 1979-08-01 |
| GB2012748B true GB2012748B (en) | 1982-04-28 |
Family
ID=19830180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB791179A Expired GB2012748B (en) | 1978-01-19 | 1979-01-12 | Process for preparing 2-pyrrolidone |
Country Status (11)
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL7902537A (nl) * | 1979-04-01 | 1980-10-03 | Stamicarbon | Werkwijze voor de bereiding van een eventueel c-gesubstitueerd 2-pyrrolidon en daarbij te gebruiken katalysator. |
| NL7909230A (nl) * | 1979-12-21 | 1981-07-16 | Stamicarbon | Werkwijze voor het bereiden van een 2-pyrrolidon. |
| CA2447618A1 (en) * | 2001-05-23 | 2002-11-28 | Tanabe Seiyaku Co., Ltd. | A composition for regenerative treatment of cartilage disease |
| CN102816130B (zh) * | 2004-05-17 | 2015-05-06 | 大塚制药株式会社 | 噻唑化合物及其用途 |
| US8728775B2 (en) | 2010-09-30 | 2014-05-20 | Daesang Corporation | Method for preparing 2-pyrrolidone using a microorganism containing glutamate decarboxylase |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4123438A (en) * | 1975-03-05 | 1978-10-31 | Stamicarbon, B.V. | Process for preparing 2-pyrrolidones |
-
1978
- 1978-01-19 NL NL7800644A patent/NL7800644A/xx not_active Application Discontinuation
-
1979
- 1979-01-12 GB GB791179A patent/GB2012748B/en not_active Expired
- 1979-01-15 BE BE0/192889A patent/BE873470A/xx not_active IP Right Cessation
- 1979-01-16 CA CA319,684A patent/CA1101429A/en not_active Expired
- 1979-01-17 FR FR7901088A patent/FR2415100A1/fr active Granted
- 1979-01-17 IT IT47685/79A patent/IT1114715B/it active
- 1979-01-18 DE DE19792901912 patent/DE2901912A1/de active Granted
- 1979-01-18 US US06/004,474 patent/US4193925A/en not_active Expired - Lifetime
- 1979-01-18 ES ES476964A patent/ES476964A1/es not_active Expired
- 1979-01-18 JP JP443479A patent/JPS54112858A/ja active Granted
- 1979-01-19 SU SU792712904A patent/SU942591A3/ru active
Also Published As
| Publication number | Publication date |
|---|---|
| SU942591A3 (ru) | 1982-07-07 |
| JPS54112858A (en) | 1979-09-04 |
| ES476964A1 (es) | 1979-06-16 |
| CA1101429A (en) | 1981-05-19 |
| GB2012748A (en) | 1979-08-01 |
| IT7947685A0 (it) | 1979-01-17 |
| IT1114715B (it) | 1986-01-27 |
| DE2901912C2 (US06420036-20020716-C00037.png) | 1987-12-10 |
| FR2415100B1 (US06420036-20020716-C00037.png) | 1983-07-22 |
| JPS6339586B2 (US06420036-20020716-C00037.png) | 1988-08-05 |
| BE873470A (nl) | 1979-07-16 |
| NL7800644A (nl) | 1979-07-23 |
| DE2901912A1 (de) | 1979-07-26 |
| FR2415100A1 (fr) | 1979-08-17 |
| US4193925A (en) | 1980-03-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 732E | Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977) | ||
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19940112 |