JPS5533407A - Production of diaminodihyroxyanthraquinone - Google Patents
Production of diaminodihyroxyanthraquinoneInfo
- Publication number
- JPS5533407A JPS5533407A JP10484378A JP10484378A JPS5533407A JP S5533407 A JPS5533407 A JP S5533407A JP 10484378 A JP10484378 A JP 10484378A JP 10484378 A JP10484378 A JP 10484378A JP S5533407 A JPS5533407 A JP S5533407A
- Authority
- JP
- Japan
- Prior art keywords
- diphenoxyanthraquinone
- nitrated
- isolation
- reduced
- diaminophenol
- 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: Nitrated diphenoxyanthraquinone is hydrolyzed with alkali and, without isolation, the resulting dinitrodihydroxyanthraquinone is reduced to produce readily title compound in high yield.
CONSTITUTION: A nitrated diphenoxyanthraquinone as nitrated 1,5-diphenoxyanthraquinone is hydrolyzed with caustic alkali in an aqeuous solvent and the resulting mixture contaning dinitrodihydoxyanthraquinone and dinitrophenol is derectly reduced with a reducing reagent as sodium sulfide or by catalytic hydrogenation without isolation of the product to give diaminodihydroxyanthraquinone and diaminophenol. The reaction mixture is made acidic or alkaline and filtered to isolate the objective compound. After insloation of the diaminophenol or without isolation the filtrate is subjected to usual water disposal.
EFFECT: The total volume of waste water is reduced and this process is very economic.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10484378A JPS5533407A (en) | 1978-08-30 | 1978-08-30 | Production of diaminodihyroxyanthraquinone |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10484378A JPS5533407A (en) | 1978-08-30 | 1978-08-30 | Production of diaminodihyroxyanthraquinone |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5533407A true JPS5533407A (en) | 1980-03-08 |
Family
ID=14391610
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10484378A Pending JPS5533407A (en) | 1978-08-30 | 1978-08-30 | Production of diaminodihyroxyanthraquinone |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5533407A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114456616A (en) * | 2022-03-01 | 2022-05-10 | 常州大学 | Synthesis method of disperse red 60 |
-
1978
- 1978-08-30 JP JP10484378A patent/JPS5533407A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114456616A (en) * | 2022-03-01 | 2022-05-10 | 常州大学 | Synthesis method of disperse red 60 |
CN114456616B (en) * | 2022-03-01 | 2024-03-15 | 常州大学 | Synthesis method of disperse red 60 |
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