GB452454A - Process for the manufacture of monoazodyestuffs - Google Patents
Process for the manufacture of monoazodyestuffsInfo
- Publication number
- GB452454A GB452454A GB5885/35A GB588535A GB452454A GB 452454 A GB452454 A GB 452454A GB 5885/35 A GB5885/35 A GB 5885/35A GB 588535 A GB588535 A GB 588535A GB 452454 A GB452454 A GB 452454A
- Authority
- GB
- United Kingdom
- Prior art keywords
- amino
- acid
- methoxybenzene
- aralkyl
- nitro
- 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
- C09B29/02—Monoazo dyes prepared by diazotising and coupling from diazotised o-amino-hydroxy compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Abstract
Azo dyes are made by coupling in acid medium diazo compounds of amines of the general formula <FORM:0452454/IV/1> in which x=alkoxy, aralkoxy or aryloxy and R=aryloxy or the amino group, in which the hydrogen atoms may be wholly substituted by alkyl, aryl or aralkyl, with 2-amino-8-naphthol-6-sulphonic acid or a substitution product thereof. They dye wool in even blue shades fast to fulling. The dyeings have a good colour in artificial light. In examples the following dyes are described: (1) and (2) 5 - nitro - 2 - amino - 1 - methoxybenzene - 3 - sulphoethylanilide --> 2 : 8 : 6- acid or its N - methyl derivative; (3) 5 - nitro - 2 - amino - 1 - methoxybenzene - 3 - sulphonic acid phenyl ester --> 2 : 8 : 6-acid. A sample has been furnished under Sect. 2 (5) of the dyestuff 5 - nitro - 2 - amino - 1 - methoxybenzene - 3 - sulphomethylbenzylamide --> N-methyl-2 : 8 : 6-acid. Specifications 1397/09 and 10462/09, [both in Class 2 (iii)], are referred to. The Specification as open to inspection under Sect. 91 states that x in the general formula above may be an etherified hydroxyl group, R may be alkyl, aryl, aralkyl, alkoxy or aralkoxy and that the hydrogen atoms of the amino group may be partly substituted by alkyl, aryl or aralkyl. This subject-matter does not appear in the Specification as accepted.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE452454X | 1934-02-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB452454A true GB452454A (en) | 1936-08-24 |
Family
ID=6538656
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5885/35A Expired GB452454A (en) | 1934-02-24 | 1935-02-23 | Process for the manufacture of monoazodyestuffs |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB452454A (en) |
-
1935
- 1935-02-23 GB GB5885/35A patent/GB452454A/en not_active Expired
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