GB309216A - Manufacture of fast azo-dyestuffs - Google Patents
Manufacture of fast azo-dyestuffsInfo
- Publication number
- GB309216A GB309216A GB3546127A GB3546127A GB309216A GB 309216 A GB309216 A GB 309216A GB 3546127 A GB3546127 A GB 3546127A GB 3546127 A GB3546127 A GB 3546127A GB 309216 A GB309216 A GB 309216A
- Authority
- GB
- United Kingdom
- Prior art keywords
- amino
- dimethylether
- hydroxynaphthoic acid
- bromo
- anisidine
- 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
- C09B29/10—Monoazo dyes prepared by diazotising and coupling from coupling components containing hydroxy as the only directing group
- C09B29/18—Monoazo dyes prepared by diazotising and coupling from coupling components containing hydroxy as the only directing group ortho-Hydroxy carbonamides
- C09B29/20—Monoazo dyes prepared by diazotising and coupling from coupling components containing hydroxy as the only directing group ortho-Hydroxy carbonamides of the naphthalene series
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Abstract
309,216. Imray, O. Y., (I. G. Farbenindustrie Akt.-Ges.). Dec, 31, 1927. Azo dyes; lakes.-Azo dyes are made by coupling diazotized 2: 4: 5-trichloroaniline with an arylide of 2: 3-hydroxynaphthoic acid. They are especially fast to light and may be used for lakes. According to examples, (1) diazotized 2:4:5- trichlcraniline is coupled with 2<1>-hydroxy-3<1>- naphthoyl-2-amino-1-anisol dissolved in caustic soda solution containing Turkey red oil and sodium Acetate; the product forms a yellowish red lake with the usual substrata. Other specified arylides are produced from 2: 3-hydroxynaphthoic acid and a- or #-naphthylamine, p-anisidine, aminohydroquinone dimethylether, 4- and 5-chlor-2-anisidine, 5-chloro-2-toluidine, dianisidine, aniline. p-phenetidine, o, m-, or p-chloraniline and m-toluidine and from 6-bromo-2 : 3- hydroxynaphthoic acid and 2-amino-5-chlorhydroquinone dimethylether. 6<1> - Bromo-2<1>-hydroxy-3<1>-naphthoyl-2-amino-5- chlorohydroquinone dimethylether is prepaered from 6-bromo-2: 3-hydroxynaphthoic acid and 2- amino - 5 - chlorobydroquinone dimethylether according to the process of Specification 23732/13. 2-Amino-5-chlorohydroquinonedimathylether is prepared by replacing the amino-groups of 5- amino-2-nitrydroquinone dimethylether by chlorine and reducing the nitro-group. Reference has been directed by the Comptroller to Specifications 6379/12, and 17279/13, [Class 15 (ii), Dyeing, Processes &c. for].
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3546127A GB309216A (en) | 1927-12-31 | 1927-12-31 | Manufacture of fast azo-dyestuffs |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3546127A GB309216A (en) | 1927-12-31 | 1927-12-31 | Manufacture of fast azo-dyestuffs |
Publications (1)
Publication Number | Publication Date |
---|---|
GB309216A true GB309216A (en) | 1929-04-02 |
Family
ID=10377983
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3546127A Expired GB309216A (en) | 1927-12-31 | 1927-12-31 | Manufacture of fast azo-dyestuffs |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB309216A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE746454C (en) * | 1939-06-02 | 1944-08-05 | Ig Farbenindustrie Ag | Process for the preparation of a water-insoluble monoazo dye |
-
1927
- 1927-12-31 GB GB3546127A patent/GB309216A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE746454C (en) * | 1939-06-02 | 1944-08-05 | Ig Farbenindustrie Ag | Process for the preparation of a water-insoluble monoazo dye |
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