JPS5344551A - Separation of 1,5- and 1,8-dinitroanthraquinones - Google Patents
Separation of 1,5- and 1,8-dinitroanthraquinonesInfo
- Publication number
- JPS5344551A JPS5344551A JP11902676A JP11902676A JPS5344551A JP S5344551 A JPS5344551 A JP S5344551A JP 11902676 A JP11902676 A JP 11902676A JP 11902676 A JP11902676 A JP 11902676A JP S5344551 A JPS5344551 A JP S5344551A
- Authority
- JP
- Japan
- Prior art keywords
- dinitroanthraquinones
- separation
- solvent
- mixture
- nitroanthraquinones
- 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
Abstract
PURPOSE: To conveniently separate title compounds useful as intermediate for dyes and pigments from a mixture of nitroanthraquinones by heating it in a solvent or a solvent mixture selected from cyclohexane, methylcyclohexanone, and acetophenone.
COPYRIGHT: (C)1978,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11902676A JPS5344551A (en) | 1976-10-05 | 1976-10-05 | Separation of 1,5- and 1,8-dinitroanthraquinones |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11902676A JPS5344551A (en) | 1976-10-05 | 1976-10-05 | Separation of 1,5- and 1,8-dinitroanthraquinones |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5344551A true JPS5344551A (en) | 1978-04-21 |
JPS5521027B2 JPS5521027B2 (en) | 1980-06-06 |
Family
ID=14751134
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11902676A Granted JPS5344551A (en) | 1976-10-05 | 1976-10-05 | Separation of 1,5- and 1,8-dinitroanthraquinones |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5344551A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0235073A (en) * | 1988-07-25 | 1990-02-05 | Dai Ichi Kogyo Seiyaku Co Ltd | Defoamer for fermentation |
-
1976
- 1976-10-05 JP JP11902676A patent/JPS5344551A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0235073A (en) * | 1988-07-25 | 1990-02-05 | Dai Ichi Kogyo Seiyaku Co Ltd | Defoamer for fermentation |
Also Published As
Publication number | Publication date |
---|---|
JPS5521027B2 (en) | 1980-06-06 |
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