GB458423A - Manufacture of insoluble azo-dyestuffs - Google Patents
Manufacture of insoluble azo-dyestuffsInfo
- Publication number
- GB458423A GB458423A GB17618/35A GB1761835A GB458423A GB 458423 A GB458423 A GB 458423A GB 17618/35 A GB17618/35 A GB 17618/35A GB 1761835 A GB1761835 A GB 1761835A GB 458423 A GB458423 A GB 458423A
- Authority
- GB
- United Kingdom
- Prior art keywords
- nitroaniline
- chloro
- components
- alkyl
- dinitroaniline
- 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
- C09B29/32—Monoazo dyes prepared by diazotising and coupling from coupling components containing a reactive methylene group
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Luminescent Compositions (AREA)
- Coloring (AREA)
Abstract
Insoluble azo dyes are made by coupling a diazotized nitroamino compound of the benzene series, which may be halogen substituted, with a py-tetrahydro-1-alkyl or 1-aralkyl-3-oxyquinoline of the formula <FORM:0458423/IV/1> (X = H, alkyl or halogen), neither of the components containing a COOH or SO3H group. They dye cellulose esters mainly in blue shades which are fast to acids and may be discharged white. Dyes from the following components are specified in examples: diazo components; 4 - nitroaniline, 2 - chloro - 4 - nitroaniline, 2 : 6-dichloro - 4 - nitroaniline, 2 : 4 - dinitroaniline, 6 - bromo- or 6 - chloro - 2 : 4 - dinitroaniline; coupling components: 1 - n - butyl - 3 - oxy - 7-chloro- or 7 - methyltetrahydroquinoline, 1 benzyl-3-oxytetrahydroquinoline, 1-benzyl- or 1-ethyl-3-oxy-7-methyl-tetrahydroquinoline. Tetrahydroquinoline compounds of the above formula are made by condensation of the appropriate alkyl- or aralkylaniline with epichlorhydrin at a raised temperature whereby ring closure occurs.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE458423X | 1934-08-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB458423A true GB458423A (en) | 1936-12-21 |
Family
ID=6539438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB17618/35A Expired GB458423A (en) | 1934-08-11 | 1935-06-19 | Manufacture of insoluble azo-dyestuffs |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB458423A (en) |
-
1935
- 1935-06-19 GB GB17618/35A patent/GB458423A/en not_active Expired
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