CH182269A - Process for the preparation of an azo dye. - Google Patents
Process for the preparation of an azo dye.Info
- Publication number
- CH182269A CH182269A CH182269DA CH182269A CH 182269 A CH182269 A CH 182269A CH 182269D A CH182269D A CH 182269DA CH 182269 A CH182269 A CH 182269A
- Authority
- CH
- Switzerland
- Prior art keywords
- preparation
- violet
- dye
- azo dye
- blue
- 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)
- Coloring (AREA)
Description
Zusatzpatent zum Hauptpatent Nr. 177581. Verfahren zur Darstellung eines Azofarbstofes. Das vorliegende Verfahren betrifft die Darstellung eines blauvioletten Acetat seidenfarbstoffes und ist dadurch gekenn zeichnet, dass man diazotiertes 6-Brom-2,4- dinitroanilin mit Äthyl-ss-y-dioxypropylmeta- toluidin kuppelt.
<I>Beispiel:</I> Man löst 26,2 Teile 6-Brom-2,4-dinitro- anilin in .135 Teilen konzentrierter Schwefel säure von<B>60'</B> und versetzt die Lösung lang sam mit 6,9 Teilen scharf getrocknetem Ni trit zwischen 60 bis<B>70'.</B> Nach einiger Zeit kühlt man ab auf 20 , giesst die Masse auf zerstossenes Eis und verdünnt mit Eiswasser bis auf 1500 Teile.
Diese Diazolösung lässt man in eine Lösung von 20,9 Teilen A.thyl- ss,y-dioxypropyl-meta-toluidin (.S. P. 180 bei 5 mm) in 500 Teilen Wasser und 13 Teilen 30 % iger Salzsäure einlaufen. Der filtrierte und getrocknete Farbstoff gibt auf Acetat seide blauviolette Töne. Er stellt ein bronce- glänzendes Pulver dar und löst sich in Ben zol mit roter, in Alkohol und Aceton mit violetter und in konzentrierter Schwefelsäure mit oranger Farbe.
Additional patent to the main patent No. 177581. Process for the preparation of an azo dye. The present process relates to the preparation of a blue-violet acetate silk dye and is characterized in that diazotized 6-bromo-2,4-dinitroaniline is coupled with ethyl-ss-y-dioxypropylmetoluidine.
<I> Example: </I> 26.2 parts of 6-bromo-2,4-dinitroaniline are dissolved in .135 parts of concentrated sulfuric acid of <B> 60 '</B> and the solution is slowly added 6.9 parts of sharply dried Ni trite between 60 to <B> 70 '. </B> After some time, the mixture is cooled to 20, the mass is poured onto crushed ice and diluted with ice water up to 1500 parts.
This diazo solution is allowed to run into a solution of 20.9 parts of ethyl-ss, y-dioxypropyl-meta-toluidine (.S. P. 180 at 5 mm) in 500 parts of water and 13 parts of 30% hydrochloric acid. The filtered and dried dye gives silk blue-violet tones on acetate. It is a shiny bronze powder and dissolves in benzene with red, in alcohol and acetone with violet and in concentrated sulfuric acid with orange.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH177581T | 1934-07-18 | ||
CH182269T | 1934-07-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH182269A true CH182269A (en) | 1936-01-31 |
Family
ID=25719989
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH182269D CH182269A (en) | 1934-07-18 | 1934-07-18 | Process for the preparation of an azo dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH182269A (en) |
-
1934
- 1934-07-18 CH CH182269D patent/CH182269A/en unknown
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