GB248946A - Manufacture of new azo-dyestuffs and intermediate products therefor - Google Patents
Manufacture of new azo-dyestuffs and intermediate products thereforInfo
- Publication number
- GB248946A GB248946A GB982925A GB982925A GB248946A GB 248946 A GB248946 A GB 248946A GB 982925 A GB982925 A GB 982925A GB 982925 A GB982925 A GB 982925A GB 248946 A GB248946 A GB 248946A
- Authority
- GB
- United Kingdom
- Prior art keywords
- nitro
- oxynaphthoyl
- azo
- anisidine
- chlor
- 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
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C233/00—Carboxylic acid amides
- C07C233/01—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms
- C07C233/12—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by halogen atoms or by nitro or nitroso groups
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
248,946. Bloxam, A. G., (Chemische Fabrik Griesheim-Elektron). April 15, 1925. Di-2: 3-oxynaphthol-diamino-azo. or -azoxy compounds are obtained either by condensing 2: 3-oxynaphthoyl chloride or its O-acyl derivative with diaminoazo or diaminoazoxy compounds and subsequently saponifying the O-acyl group, or by reducing a nitroarylamide of 2 : 3-oxynaphthoic acid in alkaline solution with dextrose, arsenious acid, zinc dust, formaldehyde, &c. Examples are given of the condensation of 2: 3- oxynaphthoyl chloride with p : p'-diaminoazobenzene, and of the reduction of 2 : 3-oxynaphthoyl-mnitraniline or 4-nitro-2-toluidine with dextrose, zinc dust, or sodium sulphide to the corresponding azoxy body: the 2 : 3-oxynaphthoyl derivatives of the following amines are also specified as parent materials:-p-nitraniline, 5-nitro-2-toluidine, 4- or 5-nitro-2-chloraniline, 4- or 5-nitro-2-anisidine, 4-chlor-5-nitro-2-anisidine, 4-chlor-6-nitro-3-anisidine, 5-nitro-2-amino- 4-cresolmethylether, 5-nitro-2-aminohydroquinonedimethylether. Azo dyes. - The above described di-2 : 3-oxynaphthoyl-diaminoazo or diaminoazoxy compounds yield azo dyes when coupled with diazo compounds. According to examples, diazotized p-chloraniline is coupled with di-2: 3-oxynaphthoyl-m: m<1>-diaminoazoxybenzene, and diazotized 3-nitro-4-toluidine is coupled with di-2: 3- oxynapthoyl-m : m<1>-diamino-p : p<1>-dimethylazoxybenzene. A table is given showing the tints obtainable from the following components : as diazo components :-m-xylidine, o-aminodiphenylether, 4-chlor-2-aminodiphenylether, mchloraniline, 2: 4- and 2 : 5-dichloraniline, mnitraniline, 4- or 5-nitro-2-toluidine, 3-nitro-4- toluidine, 4-chlor-2-nitraniline, 4- or 5-nitro-2- anisidine, 4-chlor-2-anisidine, a-aminoanthraquinone, o-aminoazotoluene, o-phenetole-azo-1- naphthylamine, dianisidine (after treated with copper) : as coupling components the di-2 : 3- oxynaphthoyl derivatives of p : p<1>-diamino-azo- or azoxy-benzene, m : m<1>-diaminoazoxybenzene, m : m<1>-diamino-p : p<1>-dimethylazoxybenzene, and m :m<1>-diamino-p : p<1>-dimethoxy-azo- or azpxybenzene.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB982925A GB248946A (en) | 1925-04-15 | 1925-04-15 | Manufacture of new azo-dyestuffs and intermediate products therefor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB982925A GB248946A (en) | 1925-04-15 | 1925-04-15 | Manufacture of new azo-dyestuffs and intermediate products therefor |
Publications (1)
Publication Number | Publication Date |
---|---|
GB248946A true GB248946A (en) | 1926-03-18 |
Family
ID=9879567
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB982925A Expired GB248946A (en) | 1925-04-15 | 1925-04-15 | Manufacture of new azo-dyestuffs and intermediate products therefor |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB248946A (en) |
-
1925
- 1925-04-15 GB GB982925A patent/GB248946A/en not_active Expired
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB248946A (en) | Manufacture of new azo-dyestuffs and intermediate products therefor | |
GB512752A (en) | Improvements in and relating to colour photography | |
GB458843A (en) | The manufacture of azodyestuffs capable of forming metallic complex compounds | |
US1818049A (en) | New azodyestuff | |
AT166464B (en) | Process for the production of new polyazo dyes | |
CH252280A (en) | Process for the preparation of an azo dye. | |
GB248230A (en) | Process for the manufacture of trisazo dyestuffs | |
GB441178A (en) | Manufacture of azo-dyestuffs | |
GB470343A (en) | Manufacture of azo-dyestuffs | |
GB224522A (en) | Manufacture of b -2-oxybenzanthrone | |
GB496735A (en) | Process for the manufacture of water-insoluble azo-dyestuffs in substance or on the fibre | |
GB492987A (en) | Process for the manufacture of 4-hydroxy-1-aminonaphthalene-8-carboxylic acid and of 4-hydroxynaphthostyril | |
GB210890A (en) | Manufacture of azo-dyestuffs and chromium compounds thereof | |
GB195600A (en) | Manufacture of azo-dyestuffs | |
GB519433A (en) | Manufacture of azo-dyestuffs | |
GB347290A (en) | Process for the manufacture of azo dyestuffs containing chromium | |
GB294883A (en) | Manufacture of azo-dyestuffs | |
GB261133A (en) | Process for the production of arsinic acids of the aromatic series | |
GB819841A (en) | Copper-containing disazo dyestuffs | |
GB327380A (en) | A process for the manufacture and production of new azo dyestuffs and complex metal compounds thereof | |
CH252277A (en) | Process for the preparation of an azo dye. | |
GB341598A (en) | Process for the manufacture of new heterocyclic compounds | |
GB341969A (en) | Improvements relating to the manufacture of mono azo dyestuffs | |
CH263495A (en) | Process for the preparation of an azo dye. | |
GB756148A (en) | Manufacture of mono-azo-dyestuffs of the benzene-azo-naphthalene series |