GB331537A - Improvements in and relating to the production of anthraquinone derivatives - Google Patents
Improvements in and relating to the production of anthraquinone derivativesInfo
- Publication number
- GB331537A GB331537A GB3832528A GB3832528A GB331537A GB 331537 A GB331537 A GB 331537A GB 3832528 A GB3832528 A GB 3832528A GB 3832528 A GB3832528 A GB 3832528A GB 331537 A GB331537 A GB 331537A
- Authority
- GB
- United Kingdom
- Prior art keywords
- amino
- chloranthraquinone
- converted
- anthraquinone
- sulphoanthraquinone
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C225/00—Compounds containing amino groups and doubly—bound oxygen atoms bound to the same carbon skeleton, at least one of the doubly—bound oxygen atoms not being part of a —CHO group, e.g. amino ketones
- C07C225/24—Compounds containing amino groups and doubly—bound oxygen atoms bound to the same carbon skeleton, at least one of the doubly—bound oxygen atoms not being part of a —CHO group, e.g. amino ketones the carbon skeleton containing carbon atoms of quinone rings
- C07C225/26—Compounds containing amino groups and doubly—bound oxygen atoms bound to the same carbon skeleton, at least one of the doubly—bound oxygen atoms not being part of a —CHO group, e.g. amino ketones the carbon skeleton containing carbon atoms of quinone rings having amino groups bound to carbon atoms of quinone rings or of condensed ring systems containing quinone rings
- C07C225/32—Compounds containing amino groups and doubly—bound oxygen atoms bound to the same carbon skeleton, at least one of the doubly—bound oxygen atoms not being part of a —CHO group, e.g. amino ketones the carbon skeleton containing carbon atoms of quinone rings having amino groups bound to carbon atoms of quinone rings or of condensed ring systems containing quinone rings of condensed quinone ring systems formed by at least three rings
- C07C225/34—Amino anthraquinones
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
331,537. Loveluck, R. J., Beckett, E. G., Thomas, J., and Scottish Dyes, Ltd. Dec. 28, 1928. Anthraquinone derivatives.-The products obtained by oxidizing an o-amino-#-sulphonic acid of anthraquinone with potassium persulphate in sulphuric acid are treated with a halogenating agent, for example sodium chlorate and hydrochloric acid, whereby the sulphonic acid group is replaced by halogen. Reduction of these halogenated derivatives by means of sodium hydrosulphide, or hydrogen sulphide and ammonia or neutral hydrosulphite yields the corresponding o-aminohalogen derivatives. By the persulphate oxidation 1-amino-2-sulpho-, and 2- amino-3-sulphoanthraquinone are converted to 1- nitroso-2-sulpho- and 2-nitro-3-sulpho-anthraquinone respectively, and the latter by the treatment with sodium chlorate and hydrochloric acid are converted to 1-nitroso-2-chlor- and 2-nitro-3- chloranthraquinone respectively. In example (1) 1-amino-2-sulphoanthraquinone is converted by the above processes to 1-nitroso-2-chloranthraquinone and the latter reduced with sodium hydrosulphide to 1-amino-2-chloranthraquinone; the product is purified by dissolving in strong sulphuric acid, diluting the solution when the sulphate precipitates out, filtering and decomposing the sulphate with water; (2) 2-amino-3- sulphoanthraquinone is converted by the above means to 2-nitro-3-chloranthraquinone and reduced with sodium hydrosulphide to 2-amino-3- chloranthraquinone. These products may also be purified as described in Specification 268,537.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3832528A GB331537A (en) | 1928-12-28 | 1928-12-28 | Improvements in and relating to the production of anthraquinone derivatives |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3832528A GB331537A (en) | 1928-12-28 | 1928-12-28 | Improvements in and relating to the production of anthraquinone derivatives |
Publications (1)
Publication Number | Publication Date |
---|---|
GB331537A true GB331537A (en) | 1930-06-30 |
Family
ID=10402734
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3832528A Expired GB331537A (en) | 1928-12-28 | 1928-12-28 | Improvements in and relating to the production of anthraquinone derivatives |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB331537A (en) |
-
1928
- 1928-12-28 GB GB3832528A patent/GB331537A/en not_active Expired
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