GB277756A - The manufacture of new intermediate compounds and of azo dyestuffs therefrom - Google Patents
The manufacture of new intermediate compounds and of azo dyestuffs therefromInfo
- Publication number
- GB277756A GB277756A GB1605226A GB1605226A GB277756A GB 277756 A GB277756 A GB 277756A GB 1605226 A GB1605226 A GB 1605226A GB 1605226 A GB1605226 A GB 1605226A GB 277756 A GB277756 A GB 277756A
- Authority
- GB
- United Kingdom
- Prior art keywords
- acid
- oxy
- dyes
- dinaphthylurea
- diazotized
- 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
- C09B29/24—Monoazo dyes prepared by diazotising and coupling from coupling components containing both hydroxyl and amino directing groups
- C09B29/28—Amino naphthols
- C09B29/30—Amino naphtholsulfonic acid
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
- Artificial Filaments (AREA)
Abstract
277,756. British Dyestuffs Corporation, Ltd., Baddiley, J., Chorley, P., and Brightman, R. June 25, 1926. Ureas.-Unsymmetrical ureas are obtained by treating with phosgene an equimolecular mixture of 2 : 8 : 6-aminonaphthol sulphonic acid or its salts with an aminoacetanilide or a sulphonated amine of the benzene or naphthalene series, other than an aminonaphthol sulphonic acid or a sulphonated diamine or a monoformyl derivative of the latter, in the presence of an alkaline acetate, carbonate or hydroxide. The production of p - acetamidophenyl - (8-oxy-6-sulpho-2-naphthyl)- urea, 8<1>-oxy-1 2<1>-dinaphthylurea-4 : 6-<1>-disulphonic acid and 8-oxy-2 : 2<1>-dinaphthylurea-6 : 6<1> disulphonic acid from the 2:8: 6-acid and paminoacetanilide, naphthionic acid, and 2-naphthylamine-6-sulphonic acid, is described in examples. Azo dyes dyeing cotton or regenerated cellulose silks are obtained by coupling the above ureas with diazo compounds. In examples, (1) diazotized dehydrothiotoluidine sulphonic acid is coupled with p-acetaminophenyl-(8-oxy-6-sulpho- 2-naphthyl)-urea. the product dyes viscose silk in bordeaux shades: while the corresponding dyestuff from p-chloraniline dyes viscose silk an even red shade; if p-aminoazobenzene sulphonic acid is used as diazo component, the product dyes cotton a claret shade, while the dyestuff obtained by using as diazo component the aminoazo compound obtained by coupling diazotized metanilic acid with a-naphthylamine dyes cotton blue, (2) diazotized p-chloraniline is coupled with 8<1>-oxy- 1 : 2<1>-dinaphthylurea-4 : 6<1>-disulphonic acid: the product dyes viscose silk red, while the disazo dyestuff from dianisidine dyes cotton violet, and (3) diazotized p-chloraniline is coupled with 8- oxy-2 : 2<1>-dinaphthylurea-6 : 6<1>-disulphonic acid; the product dyes viscose silk red.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1605226A GB277756A (en) | 1926-06-25 | 1926-06-25 | The manufacture of new intermediate compounds and of azo dyestuffs therefrom |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1605226A GB277756A (en) | 1926-06-25 | 1926-06-25 | The manufacture of new intermediate compounds and of azo dyestuffs therefrom |
Publications (1)
Publication Number | Publication Date |
---|---|
GB277756A true GB277756A (en) | 1927-09-26 |
Family
ID=10070265
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1605226A Expired GB277756A (en) | 1926-06-25 | 1926-06-25 | The manufacture of new intermediate compounds and of azo dyestuffs therefrom |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB277756A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2824866A (en) * | 1953-12-18 | 1958-02-25 | Saul & Co | Disazo dyestuffs and their metal complex compounds |
US5554738A (en) * | 1987-04-27 | 1996-09-10 | Ciba-Geigy Corporation | Acyl-aryl disazo having a 6-ureido-1-hydroxy-naphthalene-3-sulfonic acid coupling component |
-
1926
- 1926-06-25 GB GB1605226A patent/GB277756A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2824866A (en) * | 1953-12-18 | 1958-02-25 | Saul & Co | Disazo dyestuffs and their metal complex compounds |
US5554738A (en) * | 1987-04-27 | 1996-09-10 | Ciba-Geigy Corporation | Acyl-aryl disazo having a 6-ureido-1-hydroxy-naphthalene-3-sulfonic acid coupling component |
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