GB743865A - New dyestuffs of the benzanthrone-pyrazoleanthrone series - Google Patents
New dyestuffs of the benzanthrone-pyrazoleanthrone seriesInfo
- Publication number
- GB743865A GB743865A GB1121353A GB1121353A GB743865A GB 743865 A GB743865 A GB 743865A GB 1121353 A GB1121353 A GB 1121353A GB 1121353 A GB1121353 A GB 1121353A GB 743865 A GB743865 A GB 743865A
- Authority
- GB
- United Kingdom
- Prior art keywords
- carboxylamido
- dimethylformamide
- sodium
- specified
- sulphonate
- 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
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B5/00—Dyes with an anthracene nucleus condensed with one or more heterocyclic rings with or without carbocyclic rings
- C09B5/02—Dyes with an anthracene nucleus condensed with one or more heterocyclic rings with or without carbocyclic rings the heterocyclic ring being only condensed in peri position
- C09B5/04—Pyrazolanthrones
- C09B5/06—Benzanthronyl-pyrazolanthrone condensation products
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Abstract
The invention comprises the leuco-sulphuric ester of 3-(1-aminoanthraquinone-2 - carboxylamido) - benzanthronepyrazolanthrone and the salts thereof which are made by treating 3 - (1 - aminoanthraquinine - 2 - carboxylamido) - benzanthrone-pyrazolanthrone with a sulphating agent in the presence of a metal and a tertiary base or an organic oxide derived from a secondary amine, or treating a metal salt of the corresponding leuco derivative, or a complex thereof, with a sulphating agent in presence of a tertiary base or an organic amide derived from a secondary amine. Amides specified are dimethylformamide, diethylformamide, dimethylacetamide, formylpiperidide, tetramethylurea, and diethyl - p - toluene sulphonamide. Diluents may be acetone or nitrobenzene. Sulphating agents specified are chlorosulphonic esters, sulphur trioxide, and additional products of the latter with bases. Catalysts specified when an amide is used are potassium ethyl sulphate, sodium 2-naphthol - 6 - sulphonate, calcium naphthalene-2.6-disulphonate, sodium b -naphthalene sulphonate, ferric chloride and magnesium chloride. In an example, the vat dye is reacted with zinc dust in dimethylformamide in presence of sodium b -naphthalene sulphonate, and the reaction mixture is cooled and reacted with dimethylformamide-sulphur trioxide. 3-Aminobenzanthronepyrazolanthrone is obtained by nitrating 3-bromobenzanthrone to give 3-bromo-9-nitrobenzanthrone, which is condensed with pyrazolanthrone, followed by reduction of the nitro group, and fusion with alcoholic potash. 3 - (1 - Aminoanthraquinone-2-carboxylamido)-benzanthronepyrazolanthrone is obtained by condensation of 3-aminobenzanthronepyrazolanthrone with 1-nitroanthraquinone-2-carboxylic acid chloride and treatment with ammonia. Specifications 186,057, 274,156, [both in Class 2(iii)], 610,117, 633,481, 633,513 and 716,558 are referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1121353A GB743865A (en) | 1953-04-23 | 1953-04-23 | New dyestuffs of the benzanthrone-pyrazoleanthrone series |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1121353A GB743865A (en) | 1953-04-23 | 1953-04-23 | New dyestuffs of the benzanthrone-pyrazoleanthrone series |
Publications (1)
Publication Number | Publication Date |
---|---|
GB743865A true GB743865A (en) | 1956-01-25 |
Family
ID=9982090
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1121353A Expired GB743865A (en) | 1953-04-23 | 1953-04-23 | New dyestuffs of the benzanthrone-pyrazoleanthrone series |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB743865A (en) |
-
1953
- 1953-04-23 GB GB1121353A patent/GB743865A/en not_active Expired
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