CH174517A - Process for the production of a new azo dye. - Google Patents
Process for the production of a new azo dye.Info
- Publication number
- CH174517A CH174517A CH174517DA CH174517A CH 174517 A CH174517 A CH 174517A CH 174517D A CH174517D A CH 174517DA CH 174517 A CH174517 A CH 174517A
- Authority
- CH
- Switzerland
- Prior art keywords
- production
- azo dye
- new azo
- new
- yellow
- Prior art date
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
- C09B29/06—Monoazo dyes prepared by diazotising and coupling from coupling components containing amino as the only directing group
- C09B29/08—Amino benzenes
-
- 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
- C09B29/06—Monoazo dyes prepared by diazotising and coupling from coupling components containing amino as the only directing group
- C09B29/08—Amino benzenes
- C09B29/0805—Amino benzenes free of acid groups
- C09B29/0807—Amino benzenes free of acid groups characterised by the amino group
- C09B29/0809—Amino benzenes free of acid groups characterised by the amino group substituted amino group
- C09B29/0811—Amino benzenes free of acid groups characterised by the amino group substituted amino group further substituted alkylamino, alkenylamino, alkynylamino, cycloalkylamino aralkylamino or arylamino
- C09B29/0813—Amino benzenes free of acid groups characterised by the amino group substituted amino group further substituted alkylamino, alkenylamino, alkynylamino, cycloalkylamino aralkylamino or arylamino substituted by OH, O-C(=X)-R, O-C(=X)-X-R, O-R (X being O,S,NR; R being hydrocarbonyl)
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Coloring (AREA)
Description
Verfahren zur Herstellung eines neuen Azofarbstoffes. Es wurde gefunden, dass man einen neuen Azofarbstoff erhält, wenn man di- azotiertes 2.6-Dichlor-4-nitro-l-aminobenzol mit Athyl-(c)-acetoxäthyl)-anilin vereinigt.
Der neue Farbstoff bildet ein dunkles Pulver, das in Wasser unlöslich ist, sich dagegen in Essigester leicht mit gelbbrauner Farbe löst. Er färbt Acetatseide in gelb braunen Tönen.
<I>Beispiel:</I> 20,7 Teile 2.6-Diehlor-4-ni+,ro-l-amino- benzol werden in eine aus 50 Teilen Schwe felsäure 66 B6 und 8 Teilen Natriumnitrit hergestellte Lösung von Nitrosylschwefel- säure eingerührt. Die Diazotierung ist be endet, wenn sich eine Probe in Eiswasser klar löst. Man giesst auf Wasser und Eis.
Die so erhaltene Diazolösung lässt man zu einer Lösung von 20,7 Teilen Äthyl-(co- acetoxäthyl)-anilin in verdünnter Salzsäure zufliessen. Dann versetzt man langsam mit Natriumacetatlösung, bis die Kupplung be endet ist. Der Farbstoff scheidet sich als dunkles Pulver aus.
Process for the production of a new azo dye. It has been found that a new azo dye is obtained if diazotized 2,6-dichloro-4-nitro-1-aminobenzene is combined with ethyl- (c) -acetoxyethyl) aniline.
The new dye forms a dark powder that is insoluble in water, but easily dissolves in ethyl acetate with a yellow-brown color. He dyes acetate silk in yellow-brown tones.
<I> Example: </I> 20.7 parts of 2,6-diehlor-4-ni +, ro-1-aminobenzene are stirred into a solution of nitrosylsulfuric acid prepared from 50 parts of sulfuric acid 66 B6 and 8 parts of sodium nitrite. Diazotization is over when a sample dissolves clearly in ice water. You pour on water and ice.
The diazo solution obtained in this way is allowed to flow into a solution of 20.7 parts of ethyl (co-acetoxethyl) aniline in dilute hydrochloric acid. Sodium acetate solution is then added slowly until the coupling has ended. The dye separates out as a dark powder.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH174517T | 1933-03-20 | ||
CH163539T | 1933-03-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH174517A true CH174517A (en) | 1935-01-15 |
Family
ID=25717788
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH174517D CH174517A (en) | 1933-03-20 | 1933-03-20 | Process for the production of a new azo dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH174517A (en) |
-
1933
- 1933-03-20 CH CH174517D patent/CH174517A/en unknown
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