JPS5762250A - Preparation of anthraquinone intermediate - Google Patents
Preparation of anthraquinone intermediateInfo
- Publication number
- JPS5762250A JPS5762250A JP13850480A JP13850480A JPS5762250A JP S5762250 A JPS5762250 A JP S5762250A JP 13850480 A JP13850480 A JP 13850480A JP 13850480 A JP13850480 A JP 13850480A JP S5762250 A JPS5762250 A JP S5762250A
- Authority
- JP
- Japan
- Prior art keywords
- diaminoanthraquinone
- solvent
- leuco
- air
- chlorosulfonic acid
- 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.)
- Granted
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
PURPOSE: To prepare 1,4-diaminoanthraquinone-2-sulfonic acid useful in the dye industry, in high yield, by oxidazing leuco-1,4-diaminoanthraquinone with air in a solvent, and then racting with chlorosulfonic acid.
CONSTITUTION: Leuco-1,4-diaminoanthraquinone available at a low cost is used as a starting material, and is oxidized with air in an inert solvent such as chlorobenzene, tetrachloroethane, etc., at 100W180°C, pref. in the presence of a catalyst such as cobalt ammonium molybdate, etc. The resultant 1,4-diaminoanthraquinone is, without separating from the reaction products, reacted with chlorosulfonic acid in a solvent at 100W170°C. The objective compound can be prepared by this process in high purity and yield, without using complicated procedures.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13850480A JPS5762250A (en) | 1980-10-02 | 1980-10-02 | Preparation of anthraquinone intermediate |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13850480A JPS5762250A (en) | 1980-10-02 | 1980-10-02 | Preparation of anthraquinone intermediate |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5762250A true JPS5762250A (en) | 1982-04-15 |
JPH0159269B2 JPH0159269B2 (en) | 1989-12-15 |
Family
ID=15223667
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13850480A Granted JPS5762250A (en) | 1980-10-02 | 1980-10-02 | Preparation of anthraquinone intermediate |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5762250A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108947872A (en) * | 2018-07-20 | 2018-12-07 | 江苏华尔化工有限公司 | A kind of synthesis technology of 1,4- diamino -2- anthraquinone sulfonate |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS528032A (en) * | 1975-07-10 | 1977-01-21 | Mitsui Toatsu Chem Inc | Preparation of 1,4-diaminoanthraquinone- 2-sulfonic acid |
-
1980
- 1980-10-02 JP JP13850480A patent/JPS5762250A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS528032A (en) * | 1975-07-10 | 1977-01-21 | Mitsui Toatsu Chem Inc | Preparation of 1,4-diaminoanthraquinone- 2-sulfonic acid |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108947872A (en) * | 2018-07-20 | 2018-12-07 | 江苏华尔化工有限公司 | A kind of synthesis technology of 1,4- diamino -2- anthraquinone sulfonate |
Also Published As
Publication number | Publication date |
---|---|
JPH0159269B2 (en) | 1989-12-15 |
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