GB384317A - New intermediate products and azo-dyestuffs therefrom - Google Patents
New intermediate products and azo-dyestuffs therefromInfo
- Publication number
- GB384317A GB384317A GB1574831A GB1574831A GB384317A GB 384317 A GB384317 A GB 384317A GB 1574831 A GB1574831 A GB 1574831A GB 1574831 A GB1574831 A GB 1574831A GB 384317 A GB384317 A GB 384317A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bisacetoacetyldiaminostilbene
- azo
- dichloro
- chloro
- intermediate products
- 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
Landscapes
- Coloring (AREA)
Abstract
Azo dyes are made on the fibre by coupling a diazo compound of the benzene series devoid of azo, sulpho, nitro, cyano or carboxy groups with 4 : 4<1> - bisacetoacetyldiaminostilbene or 2 : 2<1> - dichloro - 4 : 4<1> - bisacetoacetyldiaminostilbene. The coupling components have a high substantivity for cotton and the dyeings are exceptionally fast to kier-boiling. In examples the following diazo components are specified: 4-, 5-, and 6 - chloro - o - toluidine, o - and m - chloraniline, 4 - chloro - o - anisidine, 2 : 5 - dichloraniline. Specifications 210,217 and 211,772, [both in Class 2 (iii), Dyes &c.], are referred to. 4 : 4<1> - Bisacetoacetyldiaminostilbene and 2 : 2<1> - dichloro - 4 : 4<1> - bisacetoacetyldiaminostilbene are made by heating the respective diamine with two molecular parts of an acetoacetic ester in the presence of a solvent or diluent, e.g. chlorobenzene and advantageously in presence of a tertiary organic base e.g. pyridine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1574831A GB384317A (en) | 1931-05-29 | 1931-05-29 | New intermediate products and azo-dyestuffs therefrom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1574831A GB384317A (en) | 1931-05-29 | 1931-05-29 | New intermediate products and azo-dyestuffs therefrom |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB384317A true GB384317A (en) | 1932-11-29 |
Family
ID=10064774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1574831A Expired GB384317A (en) | 1931-05-29 | 1931-05-29 | New intermediate products and azo-dyestuffs therefrom |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB384317A (en) |
-
1931
- 1931-05-29 GB GB1574831A patent/GB384317A/en not_active Expired
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