GB584838A - Process for the preparation of disazodyestuffs - Google Patents
Process for the preparation of disazodyestuffsInfo
- Publication number
- GB584838A GB584838A GB224445A GB224445A GB584838A GB 584838 A GB584838 A GB 584838A GB 224445 A GB224445 A GB 224445A GB 224445 A GB224445 A GB 224445A GB 584838 A GB584838 A GB 584838A
- Authority
- GB
- United Kingdom
- Prior art keywords
- hydroxynaphthalene
- amino
- acid
- benzoylamino
- sulphonic acid
- 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
- C09B35/00—Disazo and polyazo dyes of the type A<-D->B prepared by diazotising and coupling
- C09B35/02—Disazo dyes
- C09B35/039—Disazo dyes characterised by the tetrazo component
- C09B35/28—Disazo dyes characterised by the tetrazo component the tetrazo component containing two aryl nuclei linked by at least one of the groups —CON<, —SO2N<, —SO2—, or —SO2—O—
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Abstract
Disazo dyes are produced by coupling one molecular proportion of tetrazotized 1-amino-4-(41 - amino) - benzoylaminobenze with one molecular proportion of salicylic acid or substitution product thereof and then with one molecular proportion of 2-benzoylamino-5-hydroxynaphthalene - 7 - sulphonic acid. In examples, 1-amino-4-(41-amino)-benzoylaminobenzene is coupled with (1) salicylic acid and 2 - benzoylamino - 5 - hydroxynaphthalene - 7 - sulphonic acid; (2) 2 - hydroxy - 3 - methyl - benzene-1-carboxylic acid and 2-benzoylamino-5-hydroxynaphthalene-7-sulphonic acid; (3) 2-hydroxy-4-methylbenzene-1-carboxylic acid and 2-benzoylamino-5-hydroxynaphthalene-7-sulphonic acid; and (4) 2-hydroxy-3-chlorobenzene - 1 - carboxylic acid and 2 - benzoyl - amino-5-hydroxynaphthalene-7-sulphonic acid. The dyestuffs dye cotton and regenerated cellulose fibres in red shades which become fast to light and washing after treatment with copper salts. Specifications 338,111, [Class 2 (iii)], 442,672 and 497,745 are referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB224445A GB584838A (en) | 1945-01-29 | 1945-01-29 | Process for the preparation of disazodyestuffs |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB224445A GB584838A (en) | 1945-01-29 | 1945-01-29 | Process for the preparation of disazodyestuffs |
Publications (1)
Publication Number | Publication Date |
---|---|
GB584838A true GB584838A (en) | 1947-01-23 |
Family
ID=9736133
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB224445A Expired GB584838A (en) | 1945-01-29 | 1945-01-29 | Process for the preparation of disazodyestuffs |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB584838A (en) |
-
1945
- 1945-01-29 GB GB224445A patent/GB584838A/en not_active Expired
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