JPS57158261A - Preparation of 1,4-diamino anthraquinone-2,3-disulfonic acid - Google Patents
Preparation of 1,4-diamino anthraquinone-2,3-disulfonic acidInfo
- Publication number
- JPS57158261A JPS57158261A JP4496681A JP4496681A JPS57158261A JP S57158261 A JPS57158261 A JP S57158261A JP 4496681 A JP4496681 A JP 4496681A JP 4496681 A JP4496681 A JP 4496681A JP S57158261 A JPS57158261 A JP S57158261A
- Authority
- JP
- Japan
- Prior art keywords
- compd
- sulfuric acid
- boric acid
- reacting
- solvent
- 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.)
- Pending
Links
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4496681A JPS57158261A (en) | 1981-03-26 | 1981-03-26 | Preparation of 1,4-diamino anthraquinone-2,3-disulfonic acid |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4496681A JPS57158261A (en) | 1981-03-26 | 1981-03-26 | Preparation of 1,4-diamino anthraquinone-2,3-disulfonic acid |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57158261A true JPS57158261A (en) | 1982-09-30 |
Family
ID=12706216
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4496681A Pending JPS57158261A (en) | 1981-03-26 | 1981-03-26 | Preparation of 1,4-diamino anthraquinone-2,3-disulfonic acid |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57158261A (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0582079A1 (de) * | 1992-07-08 | 1994-02-09 | BASF Aktiengesellschaft | Verfahren zur Herstellung von 1,4-Diaminoanthrachinon-2,3-disulfonsäure und 1,4-Diaminoanthrachinon-2,3-dinitril |
-
1981
- 1981-03-26 JP JP4496681A patent/JPS57158261A/ja active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0582079A1 (de) * | 1992-07-08 | 1994-02-09 | BASF Aktiengesellschaft | Verfahren zur Herstellung von 1,4-Diaminoanthrachinon-2,3-disulfonsäure und 1,4-Diaminoanthrachinon-2,3-dinitril |
CN1052719C (zh) * | 1992-07-08 | 2000-05-24 | Basf公司 | 1,4-二氨基蒽醌-2,3-二磺酸的制备方法 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS57158261A (en) | Preparation of 1,4-diamino anthraquinone-2,3-disulfonic acid | |
JPS5210221A (en) | Process for preparation of perfluoroalkylethers containing fluorosulfo nyl group | |
JPS53137908A (en) | Syntheses of monochloropinacolone and cyanopinacolone | |
JPS57118535A (en) | Preparation of fluoroalkyl alpha-chloroacrylate | |
JPS5340737A (en) | Preparation of cyanophenol | |
JPS5581818A (en) | Method of fluorination | |
JPS5227734A (en) | Process for preparation of 2,6-dichloro- 4-methylphenol | |
JPS5423042A (en) | Formation of anodic oxide film on aluminum or its alloy | |
JPS5236604A (en) | Preparation of methylchloride and its purification process | |
JPS5233610A (en) | Process for preparation of perfluorovinylether | |
JPS5640643A (en) | Preparation of ethyl trans-2-decen-4-ynoate | |
JPS51118754A (en) | Process for preparation of anthraquinone | |
JPS5325521A (en) | Preparation of pantethine | |
JPS5326659A (en) | Shadow mask | |
JPS53135962A (en) | Preparation of 1-amino-2-bromo-4-hydroxyanthraquinone | |
JPS5329298A (en) | Production of recovered aluminum sulfate | |
JPS5212146A (en) | Process for preparation of p- acetylaminobenzene-sufonylchloride | |
JPS53147010A (en) | Preparation of propylene oxide | |
JPS53133230A (en) | Preparation of anthraquinone intermediate | |
JPS5262239A (en) | Process for preparation of 6-chloro-3-toluidine-4-sulfonic acid | |
JPS51131497A (en) | Treating method of mother liquor formed at the production of sodium di thionite | |
JPS5311567A (en) | Production of black matrix fluorescent screen for color braun tube | |
JPS5262241A (en) | Preparation of chlorosulfonylbenzoyl chlorides | |
JPS51149210A (en) | Process for preparation of tetrafluoroethylene oligomers | |
JPS5248627A (en) | Process for preparation of dialkylthiophosphoric chloride |