JPS5726655A - Preparation of 1-amino-4-bromoanthraquinone-2-sulfonic acid - Google Patents
Preparation of 1-amino-4-bromoanthraquinone-2-sulfonic acidInfo
- Publication number
- JPS5726655A JPS5726655A JP10068380A JP10068380A JPS5726655A JP S5726655 A JPS5726655 A JP S5726655A JP 10068380 A JP10068380 A JP 10068380A JP 10068380 A JP10068380 A JP 10068380A JP S5726655 A JPS5726655 A JP S5726655A
- Authority
- JP
- Japan
- Prior art keywords
- alkali metal
- metal salt
- sulfonic acid
- salt
- bromide
- 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
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
PURPOSE: To prepare the titled compound useful as an intermediate of dye, in high yield, by brominating a suspension of finely divided 1-aminoanthraquinone-2- sulfonic acid alkali metal salt in the presence of an aliphatic dicarboxylic acid or its alkali metal salt.
CONSTITUTION: A 5W30wt% aqueous suspension of finely divided 1-aminoanthraquinone-2-sulfonic acid alkali metal salt is brominated with bromine or a combination of an alkali metal bromide (e.g. sodium bromide, potassium bromide, etc.) and an oxidizing agent (e.g. chlorine, sulfuric acid, etc.), in the presence of an aliphatic dicarboxylic acid or its alkali metal salt (e.g. succinic acid or its salt) and in the presence or absence of an inorganic salt (e.g. sodium chloride, potassium chloride, etc.), at pH5W7 and -5W+20°C, pref. pH5.5W6.5 and -5W+5°C to obtain the objective compound.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10068380A JPS5726655A (en) | 1980-07-22 | 1980-07-22 | Preparation of 1-amino-4-bromoanthraquinone-2-sulfonic acid |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10068380A JPS5726655A (en) | 1980-07-22 | 1980-07-22 | Preparation of 1-amino-4-bromoanthraquinone-2-sulfonic acid |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5726655A true JPS5726655A (en) | 1982-02-12 |
Family
ID=14280535
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10068380A Pending JPS5726655A (en) | 1980-07-22 | 1980-07-22 | Preparation of 1-amino-4-bromoanthraquinone-2-sulfonic acid |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5726655A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109734631A (en) * | 2019-01-14 | 2019-05-10 | 马鞍山昂扬新材料科技有限公司 | A kind of preparation method of bromamine acid |
-
1980
- 1980-07-22 JP JP10068380A patent/JPS5726655A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109734631A (en) * | 2019-01-14 | 2019-05-10 | 马鞍山昂扬新材料科技有限公司 | A kind of preparation method of bromamine acid |
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