GB1512775A - Process for the preparation of aminonitrophenols - Google Patents
Process for the preparation of aminonitrophenolsInfo
- Publication number
- GB1512775A GB1512775A GB1410777A GB1410777A GB1512775A GB 1512775 A GB1512775 A GB 1512775A GB 1410777 A GB1410777 A GB 1410777A GB 1410777 A GB1410777 A GB 1410777A GB 1512775 A GB1512775 A GB 1512775A
- Authority
- GB
- United Kingdom
- Prior art keywords
- aminonitrophenols
- polynitrophenol
- preparation
- mol
- per mole
- 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
Aminonitrophenols are obtained by partial reduction of polynitrophenols. The reduction is carried out in aqueous solution with from 1 to 8 mol of ammonia per mole of polynitrophenol at temperatures of up to 100 DEG C in the presence of 2.5 to 6 mol of sulphide ions per mole of polynitrophenol. The compounds obtained can be used for synthesising dyes.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19762614825 DE2614825C3 (en) | 1976-04-06 | 1976-04-06 | Process for the preparation of aminonitrophenols |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1512775A true GB1512775A (en) | 1978-06-01 |
Family
ID=5974575
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1410777A Expired GB1512775A (en) | 1976-04-06 | 1977-04-04 | Process for the preparation of aminonitrophenols |
Country Status (9)
Country | Link |
---|---|
JP (1) | JPS52122327A (en) |
BE (1) | BE853291A (en) |
BR (1) | BR7702163A (en) |
CH (1) | CH628020A5 (en) |
DE (1) | DE2614825C3 (en) |
ES (1) | ES457558A1 (en) |
FR (1) | FR2347332A1 (en) |
GB (1) | GB1512775A (en) |
IT (1) | IT1073238B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113372228A (en) * | 2021-06-08 | 2021-09-10 | 浙江鼎龙科技股份有限公司 | Preparation method of 2-amino-6-chloro-4-nitrophenol |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3002254A1 (en) * | 1980-01-23 | 1981-07-30 | Cassella Ag, 6000 Frankfurt | METHOD FOR PRODUCING 2-AMINO-4-NITROPHENOL |
DE4018335A1 (en) * | 1990-06-08 | 1991-12-12 | Wella Ag | Compsn. for dyeing hair - contains 2-amino-4-halo-6-nitrophenol as dye and 2-amino-4-fluoro-6-nitrophenol as new cpd. |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2464194A (en) * | 1945-05-05 | 1949-03-08 | Gen Aniline & Film Corp | Reduction of nitrophenols |
GB1001092A (en) * | 1962-09-27 | 1965-08-11 | Monsanto Chem Australia Ltd | Production of aminoquinolines |
FR1534593A (en) * | 1966-09-02 | 1968-07-26 | Merck & Co Inc | Reduction of a nitrophenyl compound to an aminophenyl compound |
-
1976
- 1976-04-06 DE DE19762614825 patent/DE2614825C3/en not_active Expired
-
1977
- 1977-04-04 CH CH421877A patent/CH628020A5/en not_active IP Right Cessation
- 1977-04-04 GB GB1410777A patent/GB1512775A/en not_active Expired
- 1977-04-04 IT IT4880177A patent/IT1073238B/en active
- 1977-04-05 ES ES457558A patent/ES457558A1/en not_active Expired
- 1977-04-05 JP JP3820577A patent/JPS52122327A/en active Pending
- 1977-04-05 BR BR7702163A patent/BR7702163A/en unknown
- 1977-04-06 BE BE2055805A patent/BE853291A/en not_active IP Right Cessation
- 1977-04-06 FR FR7710458A patent/FR2347332A1/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113372228A (en) * | 2021-06-08 | 2021-09-10 | 浙江鼎龙科技股份有限公司 | Preparation method of 2-amino-6-chloro-4-nitrophenol |
Also Published As
Publication number | Publication date |
---|---|
DE2614825B2 (en) | 1980-05-08 |
JPS52122327A (en) | 1977-10-14 |
FR2347332A1 (en) | 1977-11-04 |
DE2614825A1 (en) | 1977-10-13 |
DE2614825C3 (en) | 1981-01-29 |
BE853291A (en) | 1977-10-06 |
IT1073238B (en) | 1985-04-13 |
FR2347332B1 (en) | 1983-09-09 |
CH628020A5 (en) | 1982-02-15 |
ES457558A1 (en) | 1978-03-16 |
BR7702163A (en) | 1978-10-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |