GB743865A - New dyestuffs of the benzanthrone-pyrazoleanthrone series - Google Patents

New dyestuffs of the benzanthrone-pyrazoleanthrone series

Info

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
Application number
GB1121353A
Inventor
Samuel Coffey
David Alexander Wh Fairweather
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB1121353A priority Critical patent/GB743865A/en
Publication of GB743865A publication Critical patent/GB743865A/en
Expired legal-status Critical Current

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.
GB1121353A 1953-04-23 1953-04-23 New dyestuffs of the benzanthrone-pyrazoleanthrone series Expired GB743865A (en)

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)

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