GB498879A - Manufacture of water-soluble azo-dyestuffs - Google Patents
Manufacture of water-soluble azo-dyestuffsInfo
- Publication number
- GB498879A GB498879A GB1927037A GB1927037A GB498879A GB 498879 A GB498879 A GB 498879A GB 1927037 A GB1927037 A GB 1927037A GB 1927037 A GB1927037 A GB 1927037A GB 498879 A GB498879 A GB 498879A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pyrazolone
- sulphonic acid
- methyl
- replaced
- naphthol
- 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
- C09B29/00—Monoazo dyes prepared by diazotising and coupling
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Water-soluble azo dyes are manufactured by combining with any coupling component a diazo compound from an amine of the general formula <FORM:0498879/IV/1> where X and Y are hydrogen or the same or different aliphatic, aromatic or aliphatic-aromatic radicles. Some of the products may be transformed into colour lakes. Examples describe the production of the following dyestuffs: (1) 1-aminobenzene-3-sulphodimethylamide-6-sulphonic acid --> 1-(21-chlorophenyl)-3-methyl-5-pyrazolone; the product yields yellow printing lakes; (2) the same diazo component --> 1-(21-chloro-61-methyl-41-sulphophenyl) -3-methyl-5-pyrazolone; the product dyes wool greenish-yellow shades; the diazo component may be replaced by the corresponding diethylamide or anilide; (3) 1-aminobenzene-3-sulphodiethylamide-6-sulphonic acid --> 1-(21-chloro-61-methylphenyl)-3-methyl-5-pyrazolone; the product dyes wool yellow shades; the coupling component may be replaced by 1-phenyl-3-methyl-5-pyrazolone, 1-phenyl-5-pyrazolone-3-carboxylic acid ethyl ester or 1-(41-sulphophenyl)-5-pyrazolone-3-carboxylic acid, and the diazo component by the corresponding sulphonamide, diphenylamide, benzylamide, methylamide, 41-chloranilide, 41-methylanilide or 21-methoxyanilide; (4) 1-aminobenzene-3-sulphodimethylamide-6-sulphonic acid --> 2-acetylamino-5-naphthol-7-sulphonic acid; the product dyes wool orange shades; the coupling component may be replaced by benzoyl-2 : 5 : 7-acid; (5) the same diazo component --> 2-aminonaphthalene-7-sulphonic acid (yellowish-red shades); (6) the same diazo component --> 2-amino-8-naphthol-6-sulphonic acid (red shades); the diazo component may be replaced by the corresponding N-methylanilide; the coupling components of (4) to (6) may be replaced by 1-acetylamino-8-naphthol-4-sulphonic acid or 1-benzenesulphamino-8-naphthol-3 : 6-disulphonic acid. Specifications 12205/09, 933/10, 17105/10, and 319,585, [all in Class 2 (iii)], are referred to. Amines of the general formula given above are obtainable by reacting the corresponding 1-chloro-2-nitrobenzene-4-sulphonamides with sodium sulphite and reducing the nitro group.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1927037A GB498879A (en) | 1937-07-12 | 1937-07-12 | Manufacture of water-soluble azo-dyestuffs |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1927037A GB498879A (en) | 1937-07-12 | 1937-07-12 | Manufacture of water-soluble azo-dyestuffs |
Publications (1)
Publication Number | Publication Date |
---|---|
GB498879A true GB498879A (en) | 1939-01-12 |
Family
ID=10126601
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1927037A Expired GB498879A (en) | 1937-07-12 | 1937-07-12 | Manufacture of water-soluble azo-dyestuffs |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB498879A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2538610A (en) * | 1947-09-24 | 1951-01-16 | Ciba Ltd | Monoazo dyestuffs |
EP0013505A1 (en) * | 1979-01-05 | 1980-07-23 | Imperial Chemical Industries Plc | Water-soluble azobenzene dyes, a method for their preparation and a process for the colouration of polyamide textile material |
US5106960A (en) * | 1980-03-28 | 1992-04-21 | Ciba-Geigy Corporation | Azo dyes and the production and use thereof |
-
1937
- 1937-07-12 GB GB1927037A patent/GB498879A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2538610A (en) * | 1947-09-24 | 1951-01-16 | Ciba Ltd | Monoazo dyestuffs |
EP0013505A1 (en) * | 1979-01-05 | 1980-07-23 | Imperial Chemical Industries Plc | Water-soluble azobenzene dyes, a method for their preparation and a process for the colouration of polyamide textile material |
US5106960A (en) * | 1980-03-28 | 1992-04-21 | Ciba-Geigy Corporation | Azo dyes and the production and use thereof |
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