GB364141A - Improvements in and relating to the halogenation of anthraquinone and its derivatives - Google Patents
Improvements in and relating to the halogenation of anthraquinone and its derivativesInfo
- Publication number
- GB364141A GB364141A GB2623030A GB2623030A GB364141A GB 364141 A GB364141 A GB 364141A GB 2623030 A GB2623030 A GB 2623030A GB 2623030 A GB2623030 A GB 2623030A GB 364141 A GB364141 A GB 364141A
- Authority
- GB
- United Kingdom
- Prior art keywords
- derivatives
- anthraquinone
- halogenation
- sunlight
- positions
- 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.)
- Expired
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Anthraquinones halogenated in the a -positions are obtained by halogenating anthraquinone and its halogen derivatives, capable of further halogenation in a -positions, in presence of sunlight or forms of light actinically active with or without halogen carriers and solvents or diluents. The products may be converted into amino, or substituted amino derivatives, including acylamino derivatives by known methods. An example is given of the halogenation of anthraquinone in oleum in presence of iodine and sunlight to 1 : 4 : 5 : 8-tetrachloranthraquinone, the product being treated with phthalimide followed by hydrolysis to convert it to the tetramino-derivative; this product dyes acetate silk in blue shades.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2623030A GB364141A (en) | 1930-09-02 | 1930-09-02 | Improvements in and relating to the halogenation of anthraquinone and its derivatives |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2623030A GB364141A (en) | 1930-09-02 | 1930-09-02 | Improvements in and relating to the halogenation of anthraquinone and its derivatives |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB364141A true GB364141A (en) | 1932-01-04 |
Family
ID=10240364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2623030A Expired GB364141A (en) | 1930-09-02 | 1930-09-02 | Improvements in and relating to the halogenation of anthraquinone and its derivatives |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB364141A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1161252B (en) * | 1962-03-22 | 1964-01-16 | Bayer Ag | Process for the preparation of 1, 4-dichloro-5-nitro-anthraquinone |
-
1930
- 1930-09-02 GB GB2623030A patent/GB364141A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1161252B (en) * | 1962-03-22 | 1964-01-16 | Bayer Ag | Process for the preparation of 1, 4-dichloro-5-nitro-anthraquinone |
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