GB785345A - New monoazo dyestuffs of the benzene-azo-naphthalene series and metal complexes thereof - Google Patents
New monoazo dyestuffs of the benzene-azo-naphthalene series and metal complexes thereofInfo
- Publication number
- GB785345A GB785345A GB18670/55A GB1867055A GB785345A GB 785345 A GB785345 A GB 785345A GB 18670/55 A GB18670/55 A GB 18670/55A GB 1867055 A GB1867055 A GB 1867055A GB 785345 A GB785345 A GB 785345A
- Authority
- GB
- United Kingdom
- Prior art keywords
- hydroxy
- amino
- naphthols
- sulphonamido
- ethyl
- 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
- C09B45/00—Complex metal compounds of azo dyes
- C09B45/02—Preparation from dyes containing in o-position a hydroxy group and in o'-position hydroxy, alkoxy, carboxyl, amino or keto groups
- C09B45/14—Monoazo compounds
- C09B45/16—Monoazo compounds containing chromium
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Abstract
The invention comprises dyestuffs of formula <FORM:0785345/IV (b)/1> where X is a direct linkage or -OCH2- and R is a benzene residue containing OH or MeO o-to the azo link and their metal derivatives containing less than one atom of metal per mol. of dyestuff. They are made by coupling, advantageously in an alkaline medium, an appropriate 1 - hydroxyacylamino - 7 - naphthol with the required diazo compound and treating the product in substance or on the fibre with metal-yielding agents. Azo components indicated are 2-amino-phenol and its halogen, nitrogen, acylamino, sulphonamido, substituted sulphonamido and sulphonyl derivatives and the corresponding 2 - amino - 1 - methoxy compounds, preferred being 2-aminophenol-4-sulphonamide, -sulphonmethylamide, -sulphonic acid-(21-hydroxy)-ethyl- and -(31-methoxy)-propyl-amides and sulphon-benzyl-, -cyclohexyl- and -phenylamides, the latter of which may be substituted in the phenyl-amide residue with carboxyl, acylamino, sulphonamido, sulphonmethylamido and sulphondimethylamido groups and 2-amino-1-hydroxy-4-methylsulphonylbenzene. 1 - Hydroxyacetylamino- and 1 - carbo - (21-hydroxy) - ethoxyamino - 7 - naphthols are specified 7-naphthols. Chromium and cobalt are specified metals. Metallization is effected in conventional fashion. Mixtures of the dyestuffs may be metallized. Wool, silk, Tussore, leather, acetate rayon and polyester and synthetic nitrogenous fibres may be dyed. Blue grey to olive dyeings are obtained on metallization. In examples illustrating the preparation of the dyestuffs and their use in dyeing azo components and additional to certain of those specified above are 2-aminophenol-5-sulphonamide, -4 - sulphon - (31 - sulphonamido-, -sulphomethylamido- and -acetylamino-, 21-sulphodimethylamido- and 41 - sulphomethyl - amido-) -phenylamides, -(21 - methoxy- and 11 - ethyl - 21 - hydroxy-)-ethyl-amides, -(21-hydroxy)- and di-(21-hydroxy)-propylamides, -ethyl- and -diethylamides and -pyrrolidide and 5 - sulphon - morpholide, 2-amino-1-hydroxy - 4 - chloro-, -4- and -5 - nitro-, -4-chloro-5- and -6-nitro-, -4-nitro-6-acetylamino-and -4 - methyl - 6 - acetyl - benzenes, additional 7-naphthols being 1-(21-hydroxy)-propyl-and -(31 - hydroxy) - butyryl- and 1 - carbo-(31-hydroxy)- and -(41 - hydroxy) - butoxy-amino-7-naphthols.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH785345X | 1954-06-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB785345A true GB785345A (en) | 1957-10-23 |
Family
ID=4536542
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB18670/55A Expired GB785345A (en) | 1954-06-29 | 1955-06-28 | New monoazo dyestuffs of the benzene-azo-naphthalene series and metal complexes thereof |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB785345A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2961437A (en) * | 1957-07-31 | 1960-11-22 | Sandoz Ltd | Monoazo dyestuffs and their metal complex compounds |
-
1955
- 1955-06-28 GB GB18670/55A patent/GB785345A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2961437A (en) * | 1957-07-31 | 1960-11-22 | Sandoz Ltd | Monoazo dyestuffs and their metal complex compounds |
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