FR2008946A1 - - Google Patents
Info
- Publication number
- FR2008946A1 FR2008946A1 FR6916398A FR6916398A FR2008946A1 FR 2008946 A1 FR2008946 A1 FR 2008946A1 FR 6916398 A FR6916398 A FR 6916398A FR 6916398 A FR6916398 A FR 6916398A FR 2008946 A1 FR2008946 A1 FR 2008946A1
- Authority
- FR
- France
- 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.)
- Withdrawn
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D265/00—Heterocyclic compounds containing six-membered rings having one nitrogen atom and one oxygen atom as the only ring hetero atoms
- C07D265/04—1,3-Oxazines; Hydrogenated 1,3-oxazines
- C07D265/12—1,3-Oxazines; Hydrogenated 1,3-oxazines condensed with carbocyclic rings or ring systems
- C07D265/14—1,3-Oxazines; Hydrogenated 1,3-oxazines condensed with carbocyclic rings or ring systems condensed with one six-membered ring
- C07D265/24—1,3-Oxazines; Hydrogenated 1,3-oxazines condensed with carbocyclic rings or ring systems condensed with one six-membered ring with hetero atoms directly attached in positions 2 and 4
- C07D265/26—Two oxygen atoms, e.g. isatoic anhydride
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Indole Compounds (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1770458A DE1770458C3 (de) | 1968-05-20 | 1968-05-20 | Verfahren zur Herstellung von Isatosäureanhydrid |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2008946A1 true FR2008946A1 (fr) | 1970-01-30 |
Family
ID=5700519
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR6916398A Withdrawn FR2008946A1 (fr) | 1968-05-20 | 1969-05-20 |
Country Status (7)
Country | Link |
---|---|
US (1) | US3687951A (fr) |
CH (1) | CH512506A (fr) |
DE (1) | DE1770458C3 (fr) |
FR (1) | FR2008946A1 (fr) |
GB (1) | GB1214412A (fr) |
IL (1) | IL32233A (fr) |
NL (1) | NL165460C (fr) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3734921A (en) * | 1971-11-03 | 1973-05-22 | Sherwin Williams Co | N-haloquinolinimides |
DE2258150C2 (de) * | 1972-11-28 | 1985-08-14 | Basf Ag, 6700 Ludwigshafen | Verfahren zur Herstellung von Isatosäureanhydriden |
IT1003157B (it) * | 1972-11-28 | 1976-06-10 | Basf Ag | Processo per la produzione di anidride isatoica non sostituita o sostituita |
DE2902978A1 (de) * | 1979-01-26 | 1980-08-07 | Basf Ag | Verfahren zur kontinuierlichen herstellung von isatosaeureanhydrid |
DE2925175A1 (de) * | 1979-06-22 | 1981-01-08 | Basf Ag | Verfahren zur herstellung von isatosaeureanhydriden |
EP2266998B1 (fr) * | 2009-06-16 | 2013-07-24 | Crystal Pharma, S.A.U. | Procédé pour l'obtention de 17-spirolactones dans des stéroïdes |
CN104402840B (zh) * | 2014-11-12 | 2017-02-15 | 合肥星宇化学有限责任公司 | 一种靛红酸酐的合成工艺 |
CN111848541A (zh) * | 2020-07-17 | 2020-10-30 | 青岛科技大学 | 一种连续生产靛红酸酐的工艺及装置 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE127138C (fr) * | ||||
US3324119A (en) * | 1963-12-23 | 1967-06-06 | Maumee Chemical Company | Production of isatoic anhydride and certain halo derivatives thereof |
-
1968
- 1968-05-20 DE DE1770458A patent/DE1770458C3/de not_active Expired
-
1969
- 1969-05-14 CH CH740369A patent/CH512506A/de not_active IP Right Cessation
- 1969-05-16 IL IL32233A patent/IL32233A/xx unknown
- 1969-05-19 GB GB25320/69A patent/GB1214412A/en not_active Expired
- 1969-05-19 US US825890A patent/US3687951A/en not_active Expired - Lifetime
- 1969-05-20 NL NL6907716.A patent/NL165460C/xx not_active IP Right Cessation
- 1969-05-20 FR FR6916398A patent/FR2008946A1/fr not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
DE1770458A1 (de) | 1971-10-14 |
NL6907716A (fr) | 1969-11-24 |
IL32233A0 (en) | 1969-07-30 |
CH512506A (de) | 1971-09-15 |
DE1770458B2 (de) | 1980-11-13 |
NL165460B (nl) | 1980-11-17 |
DE1770458C3 (de) | 1981-11-05 |
NL165460C (nl) | 1981-04-15 |
IL32233A (en) | 1972-03-28 |
GB1214412A (en) | 1970-12-02 |
US3687951A (en) | 1972-08-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |