DE127138C - - Google Patents
Info
- Publication number
- DE127138C DE127138C DENDAT127138D DE127138DA DE127138C DE 127138 C DE127138 C DE 127138C DE NDAT127138 D DENDAT127138 D DE NDAT127138D DE 127138D A DE127138D A DE 127138DA DE 127138 C DE127138 C DE 127138C
- Authority
- DE
- Germany
- Prior art keywords
- acid
- phthalimide
- salts
- isatoic
- excess alkali
- 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.)
- Active
Links
- XKJCHHZQLQNZHY-UHFFFAOYSA-N Phthalimide Chemical compound C1=CC=C2C(=O)NC(=O)C2=C1 XKJCHHZQLQNZHY-UHFFFAOYSA-N 0.000 claims description 6
- RFQGAFQKNITSIA-UHFFFAOYSA-N 2-(carboxyamino)benzoic acid Chemical compound OC(=O)NC1=CC=CC=C1C(O)=O RFQGAFQKNITSIA-UHFFFAOYSA-N 0.000 claims description 3
- QWPPOHNGKGFGJK-UHFFFAOYSA-N Hypochlorous acid Chemical class ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 claims description 3
- 239000003513 alkali Substances 0.000 claims description 3
- 150000003839 salts Chemical class 0.000 claims description 2
- 239000011780 sodium chloride Substances 0.000 claims description 2
- 239000007864 aqueous solution Substances 0.000 claims 1
- 239000000725 suspension Substances 0.000 claims 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- RWZYAGGXGHYGMB-UHFFFAOYSA-N Anthranilic acid Chemical compound NC1=CC=CC=C1C(O)=O RWZYAGGXGHYGMB-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- ZKQDCIXGCQPQNV-UHFFFAOYSA-N Calcium hypochlorite Chemical compound [Ca+2].Cl[O-].Cl[O-] ZKQDCIXGCQPQNV-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N Carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 238000006105 Hofmann reaction Methods 0.000 description 1
- SUKJFIGYRHOWBL-UHFFFAOYSA-N Sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 1
- 239000005708 Sodium hypochlorite Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 125000000896 monocarboxylic acid group Chemical group 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
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)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE127138C true DE127138C (fr) |
Family
ID=395753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT127138D Active DE127138C (fr) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE127138C (fr) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3324119A (en) * | 1963-12-23 | 1967-06-06 | Maumee Chemical Company | Production of isatoic anhydride and certain halo derivatives thereof |
| US3687951A (en) * | 1968-05-20 | 1972-08-29 | Bayer Ag | Process for the preparation of isatoic anhydride |
| EP0020969A1 (fr) * | 1979-06-20 | 1981-01-07 | BASF Aktiengesellschaft | Procédé pour la préparation d'un mélange d'alcoylesters de l'acide 3-chloro anthranilique et de l'acide 6-chloro anthranilique |
| US4328339A (en) * | 1979-01-26 | 1982-05-04 | Basf Aktiengesellschaft | Continuous preparation of isatoic anhydride |
| US6490141B2 (en) | 1999-05-28 | 2002-12-03 | Ellenberger & Poensgen Gmbh | Power distribution system |
-
0
- DE DENDAT127138D patent/DE127138C/de active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3324119A (en) * | 1963-12-23 | 1967-06-06 | Maumee Chemical Company | Production of isatoic anhydride and certain halo derivatives thereof |
| US3687951A (en) * | 1968-05-20 | 1972-08-29 | Bayer Ag | Process for the preparation of isatoic anhydride |
| US4328339A (en) * | 1979-01-26 | 1982-05-04 | Basf Aktiengesellschaft | Continuous preparation of isatoic anhydride |
| EP0020969A1 (fr) * | 1979-06-20 | 1981-01-07 | BASF Aktiengesellschaft | Procédé pour la préparation d'un mélange d'alcoylesters de l'acide 3-chloro anthranilique et de l'acide 6-chloro anthranilique |
| US6490141B2 (en) | 1999-05-28 | 2002-12-03 | Ellenberger & Poensgen Gmbh | Power distribution system |
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