GB1312463A - Method of producing ypsilon-butyrolactams - Google Patents
Method of producing ypsilon-butyrolactamsInfo
- Publication number
- GB1312463A GB1312463A GB1312463DA GB1312463A GB 1312463 A GB1312463 A GB 1312463A GB 1312463D A GB1312463D A GB 1312463DA GB 1312463 A GB1312463 A GB 1312463A
- Authority
- GB
- United Kingdom
- Prior art keywords
- butyrolactone
- butyrolactams
- ypsilon
- producing
- suitably
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
1312463 γ-Butyrolactams BADISCHE ANILIN- & SODA-FABRIK AG 8 Sept 1970 42874/70 Heading C2C A γ-butyrolactam is prepared by continuously reacting a γ-butyrolactone with ammonia at a temperature of from 180‹ to 340‹ C. and at a pressure which is at least 10% higher than the sum of the partial pressures of the reactants at the temperature of the reaction. The pressure is suitably from 45 to 130 atmospheres, and the reaction may be carried out in the presence or absence of water. The starting material is suitably γ-butyrolactone itself or a (C 1 -C 4 ) alkyl or alkoxy-substituted γ-butyrolactone. Examples describe the preparation of pyrrolidone-2.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4287470 | 1970-09-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1312463A true GB1312463A (en) | 1973-04-04 |
Family
ID=10426337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1312463D Expired GB1312463A (en) | 1970-09-08 | 1970-09-08 | Method of producing ypsilon-butyrolactams |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1312463A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0537606A1 (en) * | 1991-10-17 | 1993-04-21 | BASF Aktiengesellschaft | Process for the preparation of 5-hydroxyethylpyrrolidones |
| CN112341339A (en) * | 2020-11-30 | 2021-02-09 | 江苏凯美普瑞工程技术有限公司 | Method and device for synthesizing 1, 4-butanediamine |
-
1970
- 1970-09-08 GB GB1312463D patent/GB1312463A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0537606A1 (en) * | 1991-10-17 | 1993-04-21 | BASF Aktiengesellschaft | Process for the preparation of 5-hydroxyethylpyrrolidones |
| CN112341339A (en) * | 2020-11-30 | 2021-02-09 | 江苏凯美普瑞工程技术有限公司 | Method and device for synthesizing 1, 4-butanediamine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |