NL184953C - PROCESS FOR THE PREPARATION OF A 2-PYRROLIDINONE, WHETHER OR NOT SUBSTITUTED. - Google Patents
PROCESS FOR THE PREPARATION OF A 2-PYRROLIDINONE, WHETHER OR NOT SUBSTITUTED.Info
- Publication number
- NL184953C NL184953C NL7502574A NL7502574A NL184953C NL 184953 C NL184953 C NL 184953C NL 7502574 A NL7502574 A NL 7502574A NL 7502574 A NL7502574 A NL 7502574A NL 184953 C NL184953 C NL 184953C
- Authority
- NL
- Netherlands
- Prior art keywords
- pyrrolidinone
- substituted
- preparation
- Prior art date
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)
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL7502574A NL184953C (en) | 1975-03-05 | 1975-03-05 | PROCESS FOR THE PREPARATION OF A 2-PYRROLIDINONE, WHETHER OR NOT SUBSTITUTED. |
GB704576A GB1494454A (en) | 1975-03-05 | 1976-02-23 | Process for preparing 2-pyrrolidones |
JP2204676A JPS6056707B2 (en) | 1975-03-05 | 1976-03-01 | Method for producing 2-pyrrolidone |
BE164771A BE839091A (en) | 1975-03-05 | 1976-03-02 | PROCESS FOR THE PREPARATION OF 2-PYRROLIDONE |
FR7605972A FR2303003A1 (en) | 1975-03-05 | 1976-03-03 | 2-PYRROLIDON PREPARATION PROCESS |
SU762328357A SU585809A3 (en) | 1975-03-05 | 1976-03-03 | Method of preparing 2-pirrolidone or its alkyl-substitution derivatives |
IT4839676A IT1057926B (en) | 1975-03-05 | 1976-03-03 | PROCEDURE FOR THE PRODUCTION OF 2 PYROLIDONES |
DE19762609209 DE2609209C2 (en) | 1975-03-05 | 1976-03-05 | Process for the preparation of 2-pyrrolidone |
US05/829,781 US4123438A (en) | 1975-03-05 | 1977-09-01 | Process for preparing 2-pyrrolidones |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL7502574A NL184953C (en) | 1975-03-05 | 1975-03-05 | PROCESS FOR THE PREPARATION OF A 2-PYRROLIDINONE, WHETHER OR NOT SUBSTITUTED. |
Publications (3)
Publication Number | Publication Date |
---|---|
NL7502574A NL7502574A (en) | 1976-09-07 |
NL184953B NL184953B (en) | 1989-07-17 |
NL184953C true NL184953C (en) | 1989-12-18 |
Family
ID=19823302
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL7502574A NL184953C (en) | 1975-03-05 | 1975-03-05 | PROCESS FOR THE PREPARATION OF A 2-PYRROLIDINONE, WHETHER OR NOT SUBSTITUTED. |
Country Status (8)
Country | Link |
---|---|
JP (1) | JPS6056707B2 (en) |
BE (1) | BE839091A (en) |
DE (1) | DE2609209C2 (en) |
FR (1) | FR2303003A1 (en) |
GB (1) | GB1494454A (en) |
IT (1) | IT1057926B (en) |
NL (1) | NL184953C (en) |
SU (1) | SU585809A3 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3966763A (en) * | 1975-06-30 | 1976-06-29 | Standard Oil Company | Process for producing 2-pyrrolidone |
NL7704179A (en) * | 1977-04-18 | 1978-10-20 | Stamicarbon | PROCESS FOR THE PREPARATION OF N-SUBSTITUTE 2-PYRROLIDONES. |
US6680331B2 (en) | 2001-07-16 | 2004-01-20 | Board Of Regents, The University Of Texas System | Lactam and thiolactam derivatives as anesthetic and conscious sedation agents |
GB201709297D0 (en) * | 2017-06-12 | 2017-07-26 | Rheinisch-Westfälische Technische Hochschule (Rwth) Aachen | Method for preparing methylprrolidones |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3095423A (en) * | 1961-02-01 | 1963-06-25 | Minnesota Mining & Mfg | Synthesis of 2-pyrrolidinone |
DE1923063B2 (en) * | 1968-05-16 | 1974-07-25 | Sumitomo Chemical Co., Ltd., Osaka (Japan) | Process for the production of alpha-pyrrolidone |
-
1975
- 1975-03-05 NL NL7502574A patent/NL184953C/en not_active IP Right Cessation
-
1976
- 1976-02-23 GB GB704576A patent/GB1494454A/en not_active Expired
- 1976-03-01 JP JP2204676A patent/JPS6056707B2/en not_active Expired
- 1976-03-02 BE BE164771A patent/BE839091A/en not_active IP Right Cessation
- 1976-03-03 FR FR7605972A patent/FR2303003A1/en active Granted
- 1976-03-03 SU SU762328357A patent/SU585809A3/en active
- 1976-03-03 IT IT4839676A patent/IT1057926B/en active
- 1976-03-05 DE DE19762609209 patent/DE2609209C2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS51110560A (en) | 1976-09-30 |
DE2609209A1 (en) | 1976-09-16 |
NL184953B (en) | 1989-07-17 |
FR2303003A1 (en) | 1976-10-01 |
GB1494454A (en) | 1977-12-07 |
SU585809A3 (en) | 1977-12-25 |
BE839091A (en) | 1976-09-02 |
NL7502574A (en) | 1976-09-07 |
JPS6056707B2 (en) | 1985-12-11 |
DE2609209C2 (en) | 1985-08-08 |
FR2303003B1 (en) | 1980-04-18 |
IT1057926B (en) | 1982-03-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
BC | A request for examination has been filed | ||
A85 | Still pending on 85-01-01 | ||
SNR | Assignments of patents or rights arising from examined patent applications |
Owner name: DSM N.V. |
|
V1 | Lapsed because of non-payment of the annual fee |