JPS5519231A - Preparation of 1-amino-4-bromoanthraquinone-2-sulfonic acid - Google Patents
Preparation of 1-amino-4-bromoanthraquinone-2-sulfonic acidInfo
- Publication number
- JPS5519231A JPS5519231A JP9177978A JP9177978A JPS5519231A JP S5519231 A JPS5519231 A JP S5519231A JP 9177978 A JP9177978 A JP 9177978A JP 9177978 A JP9177978 A JP 9177978A JP S5519231 A JPS5519231 A JP S5519231A
- Authority
- JP
- Japan
- Prior art keywords
- alkali metal
- metal salt
- sulfonic acid
- bromoanthraquinone
- amino
- 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 obtain the title compound economically with little formation of by- products, by the bromination of 1-aminoanthraquinone-2-sulfonate under specific pH condition using an organic acid or its alkali metal salt as buffer.
CONSTITUTION: The desired compound is obtained by the bromination of (A) 5W30 wt% water suspension of an alkali metal salt of 1-aminoanthraquinone-2- sulfonic acid with (B) bromine or an alkali metal bromide in the presence of (C) an organic acid such as acetic acid or its alkali metal salt in the presence or absence of (D) an inorganic salt such as sodium chloride and (E) an oxidizing agent such as sodium hypochlorite at pH 5W7 and -5W+20°C.
EFFECT: pH control in a plant is extremely easy.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9177978A JPS5519231A (en) | 1978-07-26 | 1978-07-26 | Preparation of 1-amino-4-bromoanthraquinone-2-sulfonic acid |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9177978A JPS5519231A (en) | 1978-07-26 | 1978-07-26 | Preparation of 1-amino-4-bromoanthraquinone-2-sulfonic acid |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5519231A true JPS5519231A (en) | 1980-02-09 |
Family
ID=14036066
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9177978A Pending JPS5519231A (en) | 1978-07-26 | 1978-07-26 | Preparation of 1-amino-4-bromoanthraquinone-2-sulfonic acid |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5519231A (en) |
-
1978
- 1978-07-26 JP JP9177978A patent/JPS5519231A/en active Pending
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