GB447522A - The manufacture of monoazodyestuffs - Google Patents
The manufacture of monoazodyestuffsInfo
- Publication number
- GB447522A GB447522A GB19997/35A GB1999735A GB447522A GB 447522 A GB447522 A GB 447522A GB 19997/35 A GB19997/35 A GB 19997/35A GB 1999735 A GB1999735 A GB 1999735A GB 447522 A GB447522 A GB 447522A
- Authority
- GB
- United Kingdom
- Prior art keywords
- amino
- sulphonic acid
- acetyl
- methylaminobenzene
- amines
- 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)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Monoazo dyestuffs are manufactured by coupling, in an acid medium, diazo compounds of amines of the general formula <FORM:0447522/IV/1> where X represents an alkyl, aralkyl, hexahydrophenyl or phenyl radicle, Y represents methyl or phenyl and Z represents OH or -N<, and the benzene nucleus may contain further substituents, with 2-amino-8-hydroxynaphthalene-6-sulphonic acid. The products dye animal fibres reddish shades. Examples describe the use, as diazo-compounds, of: (1) 1-amino-4-acetyl-N-cyclohexylaminobenzene-3-sulphonic acid or the corresponding N-n-butyl, phenyl, ethyl and benzyl compounds; (2) 1-amino-4-acetyl-N-methylaminobenzene-3-sulphonic acid, or the corresponding benzoyl derivative, or 1-amino-5-methyl-4-acetyl-N-methylaminobenzene - 3 - sulphonic acid; (3) 1 - amino - 4 - acetyl - N - methylaminobenzene - 3 - sulphonic acid methylamide, amide or cyclohexylamide, 1-amino-4-acetyl-N - cyclohexylaminobenzene-3-sulphonic acid methylamide or 1-amino-4-benzoyl-N-ethylaminobenzene-3-sulphonic acid methylamide. Specifications 312,582, [Class 2 (iii)], and 340,640 are referred to. p The Specification as open to inspection under Sect. 91 comprises also the use of diazo-components of the general formula given above in which X represents hydrogen. In an additional example, 1-amino-4-acetylaminobenzene-3-sulphonic acid is employed, the product dyeing animal fibres yellowish red shades. Reference is also made to the use of 1-amino-4-acetyl-N-methylaminobenzene-3-sulphonic acid mono- and dioxyethylamide. This subject-matter does not appear in the Specification as accepted. Amines of the general formula given above are obtainable by condensing 1-chloro-4-nitrobenzene-2-sulphonic acid with aliphatic, hydroaromatic or aromatic amines, acylating and reducing, or by treating 1-chloro-4-nitrobenzene-2-sulphonic chloride with ammonia or amines to form a sulphonamide, replacing the nuclear chlorine atom by a substituted amino group, e.g. by treating with the amine under pressure, and then acylating and reducing.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE447522X | 1934-07-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB447522A true GB447522A (en) | 1936-05-20 |
Family
ID=6538015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB19997/35A Expired GB447522A (en) | 1934-07-14 | 1935-07-12 | The manufacture of monoazodyestuffs |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB447522A (en) |
-
1935
- 1935-07-12 GB GB19997/35A patent/GB447522A/en not_active Expired
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