GB540597A - Improvements in the manufacture of azo dyestuffs - Google Patents
Improvements in the manufacture of azo dyestuffsInfo
- Publication number
- GB540597A GB540597A GB31311/39A GB3131139A GB540597A GB 540597 A GB540597 A GB 540597A GB 31311/39 A GB31311/39 A GB 31311/39A GB 3131139 A GB3131139 A GB 3131139A GB 540597 A GB540597 A GB 540597A
- Authority
- GB
- United Kingdom
- Prior art keywords
- trifluoromethyl
- chloroanilide
- amino
- diphenyl ether
- methyl
- 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)
- Paper (AREA)
Abstract
540,597. Dyes. COMPAGNIE NATIONALE DE MATIERES COLORANTES ET MANUFACTURES DE PRODUITS CHIMIQUES DU NORD REUNIES ETABLISSEMENTS KUHLMANN. Dec. 2, 1939, No. 31311. Convention date, Dec. 23, 1938. [Classes 2 (iii) and 15 (ii)] Monoazo and primary diazo dyes are obtained in substance by diazotizing an amine of the general formula wherein R represents an aromatic residue, which may be substituted, e.g. by halogen atoms or by alkyl or alkoxy groups, and coupling with a component. The products are applicable for colouring fibres, plastic masses, paper, rubber &c. Examples relate to the preparation of the following dyestuffs, (1) 2- amino - 4 - trifluoromethyl - 1 : 1<SP>1</SP> - diphenyl ether# the anilide, 3<SP>1</SP>-nitranilide, 1<SP>1</SP>- or 2<SP>1</SP>- naphthylamide, 2<SP>1</SP> - methyl - 4<SP>1</SP> - chloroanilide, 2<SP>1</SP>- or 4'-anisidide, 2<SP>1</SP>-toluidide, 21-methoxy- 4<SP>1</SP>-chloroanilide or 2<SP>1</SP>: 4<SP>1</SP>-dimethoxy-3<SP>1</SP>-chloroanilide of 2:3-hydroxynaphthoic acid or diacetoacetyl - tolidine, (2) 2 - amino - 4 - trifluoromethyl - 4<SP>1</SP> - chloro - 1 : 1<SP>1</SP> - diphenyl ether# the 2<SP>1</SP> : 4<SP>1</SP> - dimethoxy - 3<SP>1</SP> - chloroanilide of 2 : 3-hydroxynaphthoic acid, (3) 2- amino - 4 - trifluoromethyl - 21 - methyl 1 : 11 - diphenyl ether# 1 : 4 - naphtholsulphonic acid. Specifications 294,883, [Class 2 (iii)], 361,097 and 442,884 are referred to. 2 - Amino - 4 - - trifluoromethyl - 1 : 1<SP>1</SP> - diphenyl ether and its 41-chloro- and 2<SP>1</SP>-methyl-derivatives are obtained by reduction of the nitro group in the products of reaction of 2-nitro-4-trifluoromethyl-1-chlorobenzene with potassium phenolate, 4-chlorophenolate and o-cresolate respectively ; diazo components are similarly derived from 2- and 3-chlorophenols, m- and p-cresols and monoalkylated derivatives of 1 : 3- and 1 : : 4-dihydroxybenzenes. The Specification as open to inspection under Sect. 91 comprises also the production of the dyestuffs on textile fibres, e.g. of cotton, viscose or wool. This subject-matter does not appear in the Specification as accepted.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR540597X | 1938-12-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB540597A true GB540597A (en) | 1941-10-23 |
Family
ID=8929584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB31311/39A Expired GB540597A (en) | 1938-12-23 | 1939-12-02 | Improvements in the manufacture of azo dyestuffs |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB540597A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2757173A (en) * | 1952-04-16 | 1956-07-31 | Eastman Kodak Co | Azo compounds containing a beta-cyano-beta-fluoromethylethylamino group |
| US2763668A (en) * | 1951-02-15 | 1956-09-18 | Eastman Kodak Co | Hydroxy subsituted polyfluorinated anthraquinone compounds |
-
1939
- 1939-12-02 GB GB31311/39A patent/GB540597A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2763668A (en) * | 1951-02-15 | 1956-09-18 | Eastman Kodak Co | Hydroxy subsituted polyfluorinated anthraquinone compounds |
| US2757173A (en) * | 1952-04-16 | 1956-07-31 | Eastman Kodak Co | Azo compounds containing a beta-cyano-beta-fluoromethylethylamino group |
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