GB695748A - Process for the preparation of copper-containing disazo dyestuffs - Google Patents
Process for the preparation of copper-containing disazo dyestuffsInfo
- Publication number
- GB695748A GB695748A GB11950/51A GB1195051A GB695748A GB 695748 A GB695748 A GB 695748A GB 11950/51 A GB11950/51 A GB 11950/51A GB 1195051 A GB1195051 A GB 1195051A GB 695748 A GB695748 A GB 695748A
- Authority
- GB
- United Kingdom
- Prior art keywords
- aminophenol
- acid
- aminoanisole
- hydrogen
- sulphonic acid
- 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
- C09B45/24—Disazo or polyazo compounds
- C09B45/28—Disazo or polyazo compounds containing copper
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Abstract
The invention comprises copper-containing disazo dyestuffs of the formula <FORM:0695748/IV (c)/1> where Y is hydrogen or alkyl and Z is hydrogen, alkyl, phenyl or substituted phenyl. These are made by coupling J acid urea with 1 mol. of diazotized 2-aminophenol-4-sulphonic acid (or its methyl ether) and 1 mol. of the appropriate diazotized 2-aminophenol-4-sulphonamide (or methyl ether thereof), and coppering the product. The two diazo compounds may be added separately in either order. The coppered products dye cotton and regenerated cellulose in Bordeaux shades. In the examples the following dyestuffs are made and treated with ammoniacal copper oxide: (1) 2-aminophenol-4-sulphonic acid --> J acid urea \sM 2-aminophenol-4-sulphonanilide; (2) 2-amino-phenol - 4 - sulphon - N - ethylanilide --> J acid urea \sM 2-aminoanisole-4-sulphonic acid; (3) 2-aminoanisole-4-sulphonic acid --> J acid urea \sM 2 - aminoanisole - 4 - sulphonamide. Other suitable components are listed, in which Y and Z are hydrogen, methyl, ethyl, propyl, phenyl, p-tolyl, o-methoxyphenyl and m-chlorophenyl. Specification 142,448, [Class 2 (iii)], is referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH695748X | 1950-05-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB695748A true GB695748A (en) | 1953-08-19 |
Family
ID=4529622
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB11950/51A Expired GB695748A (en) | 1950-05-26 | 1951-05-22 | Process for the preparation of copper-containing disazo dyestuffs |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB695748A (en) |
-
1951
- 1951-05-22 GB GB11950/51A patent/GB695748A/en not_active Expired
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