GB1477038A - Production of aminoanthraquinones from nitroanthraquinones - Google Patents
Production of aminoanthraquinones from nitroanthraquinonesInfo
- Publication number
- GB1477038A GB1477038A GB3793174A GB3793174A GB1477038A GB 1477038 A GB1477038 A GB 1477038A GB 3793174 A GB3793174 A GB 3793174A GB 3793174 A GB3793174 A GB 3793174A GB 1477038 A GB1477038 A GB 1477038A
- Authority
- GB
- United Kingdom
- Prior art keywords
- nitro
- aminoanthraquinone
- amino
- dinitroanthraquinone
- diamino
- 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
Abstract
1477038 Aminoanthraquinones from nitroanthraquinones BASF AG 30 Aug 1974 [1 Sept 1973] 37931/74 Heading C4P A process for the production of an aminoanthraquinone (or aminobenzanthrone) is claimed, wherein the corresponding nitro compound is reduced in an aqueous solution containing from 0À5 to 50% by weight of an alkaline-reacting agent with at least the stoichiometrically necessary amount of a hydrazine at a temperature of from 25‹ C. to the boiling temperatures of the reaction mixture. Hydrazine, methylhydrazine, N,N-dimethylhydrazine or phenylhydrazine may be used, and as alkaline reagent NaOH, KOH, Na 2 CO 3 or K 2 CO 3 or mixtures may be employed. Examples describe the preparation of: a mixture of 1,5-diamino-4,8-dihydroxy- and 1,8- diamino - 4,5 - dihydroxyanthraquinones; 1- aminoanthraquinone; 2 - carboxy -, 5 - chloro-, 2 - and 2 - ethyl - 1 - aminoanthraquinone; 1,4 - dichloro - 5 - amino - anthraquinone; 1,2- dihydroxy - 3 - aminoanthraquinone; a mixture of 1,5- and 1,8-diaminoanthraquinones; 1,5 - diamino - 4,8 - dihydroxyanthraquinone; 1,4 - diaminoanthraquinone - 2 - carboxylic acid; 1 - amino - 2 - methylanthraquinone; 1- amino - 5 - [4<SP>1 </SP>- chlorophenylamino] - 4,8 - dihydroxyanthraquinone; Bz - 1 - aminobenzanthrone; Bz - 1,6 - diaminobenzanthrone; and 1-amino-2-hydroxyanthraquinone. In addition the use of: 1,5-dinitroanthraquinone; 1,8 - dinitroanthraquinone; 1 - nitro- 4 - hydroxyanthraquinone; 1 - nitro - 4,5,8- trichloroanthraquinone; 5 - nitro - 1 - aminoanthraquinone; 1,5 - dinitro - 4,8 - dichloroanthraquinone; 1,5 - dinitro - 4,8 - dimethoxyanthraquinone; 1,8 - dinitro - 4,5 - dimethoxyanthraquinone; 1 - nitro - 5 - phenylamino- 4,8 - dihydroxyanthraquinone; 1 - nitro - 5- phenylaminoanthraquinone; 1,4 - diamino - 5- nitroanthraquinone; 2 - nitroanthraquinone; 1,6 - dinitroanthraquinone; 2,7 - dinitroanthraquinone and Bz - 1 - bromo - 6 - nitrobenzanthrone in the preparation of the corresponding amino compounds is also claimed.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19732344195 DE2344195C3 (en) | 1973-09-01 | 1973-09-01 | Process for the preparation of aminoanthraquinones from nitroanthraquinones |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1477038A true GB1477038A (en) | 1977-06-22 |
Family
ID=5891388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3793174A Expired GB1477038A (en) | 1973-09-01 | 1974-08-30 | Production of aminoanthraquinones from nitroanthraquinones |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS5051126A (en) |
| BE (1) | BE819381A (en) |
| CH (1) | CH601178A5 (en) |
| DE (1) | DE2344195C3 (en) |
| FR (1) | FR2242370B3 (en) |
| GB (1) | GB1477038A (en) |
| IT (1) | IT1019164B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109810008A (en) * | 2019-02-26 | 2019-05-28 | 海门市五洋化工有限公司 | A kind of synthetic method of dyestuff intermediate |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0005206B1 (en) * | 1978-04-28 | 1981-04-01 | Ciba-Geigy Ag | Method of preparing 1,4-diaminoanthraquinone-2-carboxylic acid |
| GB2019869B (en) * | 1978-04-28 | 1982-08-25 | Ciba Geigy Ag | Process for the manufacture of 1,2-diaminoanthraquinone |
| AU4946697A (en) * | 1996-10-28 | 1998-05-22 | Merck Patent Gmbh | Dihydrobenzoanthracenone, -pyrimidinone or dihydronaphtoquinolinone |
-
1973
- 1973-09-01 DE DE19732344195 patent/DE2344195C3/en not_active Expired
-
1974
- 1974-08-28 CH CH1174974A patent/CH601178A5/xx not_active IP Right Cessation
- 1974-08-30 FR FR7429637A patent/FR2242370B3/fr not_active Expired
- 1974-08-30 IT IT5281174A patent/IT1019164B/en active
- 1974-08-30 GB GB3793174A patent/GB1477038A/en not_active Expired
- 1974-08-30 BE BE148068A patent/BE819381A/en unknown
- 1974-09-02 JP JP9998774A patent/JPS5051126A/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109810008A (en) * | 2019-02-26 | 2019-05-28 | 海门市五洋化工有限公司 | A kind of synthetic method of dyestuff intermediate |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2242370A1 (en) | 1975-03-28 |
| JPS5051126A (en) | 1975-05-07 |
| BE819381A (en) | 1975-02-28 |
| CH601178A5 (en) | 1978-06-30 |
| DE2344195B2 (en) | 1980-04-17 |
| DE2344195A1 (en) | 1975-04-03 |
| FR2242370B3 (en) | 1977-06-17 |
| DE2344195C3 (en) | 1980-12-11 |
| IT1019164B (en) | 1977-11-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |