GB1336402A - Preparation of 2-pyrrolidone - Google Patents
Preparation of 2-pyrrolidoneInfo
- Publication number
- GB1336402A GB1336402A GB298572A GB298572A GB1336402A GB 1336402 A GB1336402 A GB 1336402A GB 298572 A GB298572 A GB 298572A GB 298572 A GB298572 A GB 298572A GB 1336402 A GB1336402 A GB 1336402A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pyrrolidone
- jan
- anhydride
- ammonia
- preparation
- 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
- 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)
Abstract
1336402 2-Pyrrolidone SUN RESEARCH & DEVELOPMENT CO 21 Jan 1972 [21 Jan 1971] 2985/72 Heading C2C 2 - Pyrrolidone is prepared by reacting maleic acid or anhydride with hydrogen and ammonia in an aqueous system at a mole ratio of ammonia to acid or anhydride of from 1 : 1 to 1À2 : 1, at a temperature of from 200‹ to 300‹ C., at a pressure of from 1000 to 3000 p.s.i.g., for from 0À5 to 8 hours in the presence of a palladium-oncarbon catalyst.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10837671A | 1971-01-21 | 1971-01-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1336402A true GB1336402A (en) | 1973-11-07 |
Family
ID=22321862
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB298572A Expired GB1336402A (en) | 1971-01-21 | 1972-01-21 | Preparation of 2-pyrrolidone |
Country Status (7)
Country | Link |
---|---|
BE (1) | BE778261A (en) |
CA (1) | CA943965A (en) |
DE (1) | DE2200600A1 (en) |
FR (1) | FR2122508B1 (en) |
GB (1) | GB1336402A (en) |
IT (1) | IT946461B (en) |
NL (1) | NL7200682A (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2932456A1 (en) * | 1979-08-10 | 1981-02-26 | Chevron Res | METHOD FOR PRODUCING 2-PYRROLIDONE |
DE4139607A1 (en) * | 1991-11-30 | 1993-06-03 | Basf Ag | METHOD FOR PRODUCING N-SUBSTITUTED LACTAMES |
DE4203527A1 (en) * | 1992-02-07 | 1993-08-12 | Akzo Nv | METHOD FOR THE PRODUCTION OF PYRROLIDONE AND N-ALKYLPYRROLIDONE |
DE19520258A1 (en) * | 1995-06-02 | 1996-12-05 | Bayer Ag | Process for the preparation of 2-pyrrolidones |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1439192A (en) * | 1965-04-07 | 1966-05-20 | Rhone Poulenc Sa | Process for the preparation of nu-substituted alpha-pyrrolidones |
-
1971
- 1971-11-02 CA CA126,666A patent/CA943965A/en not_active Expired
-
1972
- 1972-01-07 DE DE19722200600 patent/DE2200600A1/en active Pending
- 1972-01-11 IT IT1923372A patent/IT946461B/en active
- 1972-01-18 NL NL7200682A patent/NL7200682A/xx unknown
- 1972-01-19 FR FR7201665A patent/FR2122508B1/fr not_active Expired
- 1972-01-20 BE BE778261A patent/BE778261A/en unknown
- 1972-01-21 GB GB298572A patent/GB1336402A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR2122508A1 (en) | 1972-09-01 |
DE2200600A1 (en) | 1972-08-10 |
FR2122508B1 (en) | 1977-04-01 |
CA943965A (en) | 1974-03-19 |
IT946461B (en) | 1973-05-21 |
NL7200682A (en) | 1972-07-25 |
BE778261A (en) | 1972-07-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |