GB439372A - The manufacture of azodyestuffs - Google Patents
The manufacture of azodyestuffsInfo
- Publication number
- GB439372A GB439372A GB2094734A GB2094734A GB439372A GB 439372 A GB439372 A GB 439372A GB 2094734 A GB2094734 A GB 2094734A GB 2094734 A GB2094734 A GB 2094734A GB 439372 A GB439372 A GB 439372A
- Authority
- GB
- United Kingdom
- Prior art keywords
- acid
- amino
- compound
- nitro
- cotton
- 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
- C09B29/0025—Monoazo dyes prepared by diazotising and coupling from diazotized amino heterocyclic compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Azo dyes are made by coupling the diazo compounds of arylenethiazoles of the formula <FORM:0439372/IV/1> in which X=halogen or alkoxy and both benzene nuclei may contain further substituents other than benzene radicles with coupling components suitable for the production of direct cotton dyes. They are capable of forming either in substance or on the fibre copper compounds fast to light. The following dyes are described in examples (1)--(3) 2-(4<1> - amino - 3<1> - methoxyphenyl) - 6 - methylbenzthiazole sulphonic acid --> N - phenyl J acid, N - benzoyl J acid or J acid urea (\ba1/2\be mol); in the latter case the corresponding ethoxy compound or the sulphonic acids of 2-(4<1>-amino-3<1> - ethoxyphenyl) - 4 - methyl - 6 - chlorobenzthiazole may be used as diazo component; the after-coppered shades on cotton are blueishred to blueish-violet; (4) 2 - (3<1> : 5<1> - dichloro - 4<1> - aminophenyl) - 6 - methylbenzthiazole --> 1- or 2-naphthol-3 : 6-disulphonic acid or 8 - chloro - 1 - naphthol - 3 : 6 - disulphonic acid; the copper compound is made by treating with aqueous copper sulphate, caustic soda and glycerine (violet on cotton); (5) 2-(3<1>-chloro-4<1> - aminophenyl) - 6 - methylbenzothiazole - 5<1> - sulpho acid --> N - phenyl J acid or dinaphthyl J acid (1 mol.) and their copper compounds; sulphonic acids of 2-(4<1>-amino-3<1>-chlorophenyl)-4-methoxybenzothiazole may also be used as diazo component. Specifications 4756/93, 1062/94, [both in Class 2], 25029/13, 6644/14, 185,880, 195,649, and 310,354, [all in Class 2 (iii)], are referred to. Aminophenylbenzthiazoles of the above formula are made by condensing a 4-nitro-3-halogen- or 3-alkoxy-aryl carboxylic acid chloride with an aminoaryl-o-mercaptan and reducing the nitro compound. Further substituents, e.g. the sulphonic acid group may be introduced into both the nitro and amino compound.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2094734A GB439372A (en) | 1934-07-17 | 1934-07-17 | The manufacture of azodyestuffs |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2094734A GB439372A (en) | 1934-07-17 | 1934-07-17 | The manufacture of azodyestuffs |
Publications (1)
Publication Number | Publication Date |
---|---|
GB439372A true GB439372A (en) | 1935-12-05 |
Family
ID=10154517
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2094734A Expired GB439372A (en) | 1934-07-17 | 1934-07-17 | The manufacture of azodyestuffs |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB439372A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2843581A (en) * | 1955-01-14 | 1958-07-15 | Ciba Ltd | New azo-dyestuffs |
-
1934
- 1934-07-17 GB GB2094734A patent/GB439372A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2843581A (en) * | 1955-01-14 | 1958-07-15 | Ciba Ltd | New azo-dyestuffs |
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