CH420171A - Procédé de préparation de 3-pyrazolidinones - Google Patents
Procédé de préparation de 3-pyrazolidinonesInfo
- Publication number
- CH420171A CH420171A CH157764A CH157764A CH420171A CH 420171 A CH420171 A CH 420171A CH 157764 A CH157764 A CH 157764A CH 157764 A CH157764 A CH 157764A CH 420171 A CH420171 A CH 420171A
- Authority
- CH
- Switzerland
- Prior art keywords
- pyrazolidinones
- preparing
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title 1
- NDGRWYRVNANFNB-UHFFFAOYSA-N pyrazolidin-3-one Chemical class O=C1CCNN1 NDGRWYRVNANFNB-UHFFFAOYSA-N 0.000 title 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
- G03C5/26—Processes using silver-salt-containing photosensitive materials or agents therefor
- G03C5/29—Development processes or agents therefor
- G03C5/30—Developers
- G03C5/3028—Heterocyclic compounds
- G03C5/3035—Heterocyclic compounds containing a diazole ring
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/54—Preparation of carboxylic acid anhydrides
- C07C51/56—Preparation of carboxylic acid anhydrides from organic acids, their salts, their esters or their halides, e.g. by carboxylation
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D231/00—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings
- C07D231/02—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings
- C07D231/06—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member
- C07D231/08—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member with oxygen or sulfur atoms directly attached to ring carbon atoms
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Plural Heterocyclic Compounds (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE2042328 | 1963-02-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH420171A true CH420171A (fr) | 1966-09-15 |
Family
ID=3864793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH157764A CH420171A (fr) | 1963-02-12 | 1964-02-11 | Procédé de préparation de 3-pyrazolidinones |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3330839A (en, 2012) |
| BE (1) | BE627879A (en, 2012) |
| CH (1) | CH420171A (en, 2012) |
| DE (1) | DE1241456B (en, 2012) |
| GB (1) | GB1055531A (en, 2012) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE628285A (nl) * | 1963-02-12 | 1963-05-29 | Gevaert Photo Prod Nv | Bereiding van 3-pyrazolidinonen |
-
0
- BE BE627879D patent/BE627879A/xx unknown
-
1963
- 1963-03-02 DE DEG37188A patent/DE1241456B/de active Pending
-
1964
- 1964-02-10 GB GB5419/64A patent/GB1055531A/en not_active Expired
- 1964-02-10 US US343511A patent/US3330839A/en not_active Expired - Lifetime
- 1964-02-11 CH CH157764A patent/CH420171A/fr unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GB1055531A (en) | 1967-01-18 |
| US3330839A (en) | 1967-07-11 |
| DE1241456B (de) | 1967-06-01 |
| BE627879A (en, 2012) |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| FR1390999A (fr) | Procédé de préparation de vinylsilanes | |
| CH438294A (fr) | Procédé de préparation de la périplogénine | |
| CH433313A (fr) | Procédé de préparation de benzoxazépines | |
| CH435298A (fr) | Procédé de préparation de 3-acylamino-5-pyrazolones | |
| FR1403372A (fr) | Procédé de préparation de 5-aminopyrazols substitués | |
| FR1392872A (fr) | Procédé de préparation des phtaloylpyrrocolines | |
| FR1396796A (fr) | Procédé de préparation de bases alcoylpyridiques | |
| FR1361270A (fr) | Procédé de préparation de n-vinylimides | |
| FR1380579A (fr) | Procédé de préparation de fluoro-alcanols | |
| FR1384309A (fr) | Procédé de préparation de benzène-sulfonyl-urées | |
| FR1359343A (fr) | Procédé de préparation du beta-ionylidène-acétaldéhyde | |
| FR1354508A (fr) | Procédé de préparation de 3-alcoyl-phénols | |
| CH420171A (fr) | Procédé de préparation de 3-pyrazolidinones | |
| FR1403545A (fr) | Procédé de préparation de 4-amino-3-nitro-azobenzènes | |
| FR1357970A (fr) | Procédé de préparation de polyhalophénates | |
| FR1396616A (fr) | Procédé perfectionné de préparation de diaminomonoazotriazines | |
| FR1411450A (fr) | Procédé de préparation de polybutadiène | |
| FR1381644A (fr) | Procédé de préparation de 19-nor-stéroïdes | |
| FR1378405A (fr) | Procédé de préparation de 3-alcoyl-phénols | |
| FR83098E (fr) | Procédé de préparation de bêta-diols bitertiaires | |
| FR1402335A (fr) | Procédé de préparation de carboxyalkylmercaptométhylsiloxanes | |
| FR1348944A (fr) | Procédé de préparation de cyclodécanol-6-one-1 | |
| FR1393051A (fr) | Procédé de préparation de polyéther-thioéthers | |
| FR1458077A (fr) | Procédé de préparation de diaza-cyclo-alcanes | |
| FR1358762A (fr) | Procédé de préparation du nitrocyclopropane |