GB1517871A - Catalytic reduction of nitrobenzene sulphonic acids - Google Patents
Catalytic reduction of nitrobenzene sulphonic acidsInfo
- Publication number
- GB1517871A GB1517871A GB742076A GB742076A GB1517871A GB 1517871 A GB1517871 A GB 1517871A GB 742076 A GB742076 A GB 742076A GB 742076 A GB742076 A GB 742076A GB 1517871 A GB1517871 A GB 1517871A
- Authority
- GB
- United Kingdom
- Prior art keywords
- catalytic reduction
- sulphonic acids
- nitrobenzene sulphonic
- nitrobenzene
- acids
- 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
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C309/00—Sulfonic acids; Halides, esters, or anhydrides thereof
- C07C309/01—Sulfonic acids
- C07C309/28—Sulfonic acids having sulfo groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton
- C07C309/45—Sulfonic acids having sulfo groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton containing nitrogen atoms, not being part of nitro or nitroso groups, bound to the carbon skeleton
- C07C309/46—Sulfonic acids having sulfo groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton containing nitrogen atoms, not being part of nitro or nitroso groups, bound to the carbon skeleton having the sulfo groups bound to carbon atoms of non-condensed six-membered aromatic rings
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB742076A GB1517871A (en) | 1977-05-19 | 1977-05-19 | Catalytic reduction of nitrobenzene sulphonic acids |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB742076A GB1517871A (en) | 1977-05-19 | 1977-05-19 | Catalytic reduction of nitrobenzene sulphonic acids |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1517871A true GB1517871A (en) | 1978-07-12 |
Family
ID=9832790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB742076A Expired GB1517871A (en) | 1977-05-19 | 1977-05-19 | Catalytic reduction of nitrobenzene sulphonic acids |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1517871A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0002691A1 (en) * | 1977-12-22 | 1979-07-11 | Bayer Ag | Process for the preparation of 1-amino-naphthaline-3,6,8-trisulfonic acid |
| EP0025274A1 (en) * | 1979-08-20 | 1981-03-18 | Imperial Chemical Industries Plc | Preparation of aminosulphonic acids and their derivatives |
| EP0285972A2 (en) * | 1987-04-08 | 1988-10-12 | BASF Aktiengesellschaft | Process for the preparation of 2,4-diaminobenzenesulfonic acid |
| CN103804242A (en) * | 2012-11-09 | 2014-05-21 | 中国中化股份有限公司 | Method for preparation of m-aminobenzenesulfonic acid by catalytic hydrogenation |
| CN107382792A (en) * | 2017-06-07 | 2017-11-24 | 盐城市瓯华化学工业有限公司 | The intermediate aminolysis thing hydrogenation reduction method of active blue 19 8 |
-
1977
- 1977-05-19 GB GB742076A patent/GB1517871A/en not_active Expired
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0002691A1 (en) * | 1977-12-22 | 1979-07-11 | Bayer Ag | Process for the preparation of 1-amino-naphthaline-3,6,8-trisulfonic acid |
| EP0025274A1 (en) * | 1979-08-20 | 1981-03-18 | Imperial Chemical Industries Plc | Preparation of aminosulphonic acids and their derivatives |
| EP0285972A2 (en) * | 1987-04-08 | 1988-10-12 | BASF Aktiengesellschaft | Process for the preparation of 2,4-diaminobenzenesulfonic acid |
| EP0285972A3 (en) * | 1987-04-08 | 1990-12-27 | Basf Aktiengesellschaft | Process for the preparation of 2,4-diaminobenzenesulfonic acid |
| CN103804242A (en) * | 2012-11-09 | 2014-05-21 | 中国中化股份有限公司 | Method for preparation of m-aminobenzenesulfonic acid by catalytic hydrogenation |
| CN103804242B (en) * | 2012-11-09 | 2016-03-23 | 中国中化股份有限公司 | A kind of shortening prepares the method for m-sulfanilic acid |
| CN107382792A (en) * | 2017-06-07 | 2017-11-24 | 盐城市瓯华化学工业有限公司 | The intermediate aminolysis thing hydrogenation reduction method of active blue 19 8 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |