CH238624A - Process for the production of a new azo dye. - Google Patents
Process for the production of a new azo dye.Info
- Publication number
- CH238624A CH238624A CH238624DA CH238624A CH 238624 A CH238624 A CH 238624A CH 238624D A CH238624D A CH 238624DA CH 238624 A CH238624 A CH 238624A
- Authority
- CH
- Switzerland
- Prior art keywords
- azo dye
- dye
- parts
- new azo
- production
- 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
- 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 Haupatent Nr. 236997. Verfahren zur Herstellung eines neuen Azofarbstoffes. Es wurde gefunden, dass man einen neuen Azofarbgtoff erhält, wenn man die Diazover- bindung des 3,5 Dinitroaminobenz.ols mit dem Chlor-.sulfo-ess.igsäure-(phenyl-metIlyl- amino)-äthylester vereinigt.
Der so erhaltene Farbstoff bildet in trockenem Zustande ein braunrotes Pulver, das ,sich in heissem Wasser mit orangeroter Farbe löst und das Acetatkuustseide aus wässeriger Lösung in echten rots,tichig oran gen Tönen färbt.
Beispiel: 18,3 Teile 3,5-Dinitroaminobenzol werden in 150 Teilen 30 % iger Salzsäure durch Er wärmen gelöst. Man kühlt diese Lösung durch Zugabe von Eis und versetzt dann diese kalte Suspension unter Rühren mit einer Lösung von 7 Teilen Natriumnitrit in etwa 25 Teilen Wasser.
Man bereitet nun eine Lösung von 30,75 Teilen des Chlor-s.ulfo-es.sigsäure-(phe- nyl - methyl - amino) - äthylesters. (dargestellt durch Erhitzen von 15,1 Teilen Methyl- oxäbhyl-aminobenzol und 26,2 Teilen Chlor sulfo-essigsäure in Solventnaphtha auf 110 ) in 200 Teilen Wasser. Diese Lösung versetzt man mit der Diazolösung und:
führt die Farb- ätoffbildung durch Zugabe von etwa 200 Tei len Natriumacetat zu Ende. Man filtriert den Farbstoff ab und: wäscht ihn neutral. Der Farbstoff wird nun in etwa 200 Teilen Was ser angerührt und mit der nötigen Menge Ammoniak in das Ammoniumsalz überge führt, gegebenenfalls; nach Zusatz von Na triumchlorid abfiltriert, gewaschen und ge trocknet.
Additional patent to main patent No. 236997. Process for the production of a new azo dye. It has been found that a new azo dye is obtained if the diazo compound of 3,5 dinitroaminobenzene is combined with the chloro-sulfo-acetic acid (phenyl-methyl-amino) -ethyl ester.
The dye thus obtained forms a brown-red powder when dry, which dissolves in hot water with an orange-red color and dyes the acetate silk from aqueous solution in real red, tinged orange tones.
Example: 18.3 parts of 3,5-dinitroaminobenzene are dissolved in 150 parts of 30% hydrochloric acid by heating. This solution is cooled by adding ice, and a solution of 7 parts of sodium nitrite in about 25 parts of water is then added to this cold suspension, while stirring.
A solution of 30.75 parts of the chloro-s.ulfo-es.sigsäure- (phenyl-methyl-amino) -ethyl ester is now prepared. (prepared by heating 15.1 parts of methyl oxybhyl aminobenzene and 26.2 parts of chlorosulfo-acetic acid in solvent naphtha to 110) in 200 parts of water. This solution is mixed with the diazo solution and:
complete the dye formation by adding about 200 parts of sodium acetate. The dye is filtered off and: it is washed neutral. The dye is now mixed in about 200 parts of water and transferred with the necessary amount of ammonia into the ammonium salt, if necessary; filtered off after the addition of sodium chloride, washed and dried ge.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH236997T | 1942-08-10 | ||
CH238624T | 1942-08-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH238624A true CH238624A (en) | 1945-07-31 |
Family
ID=25728215
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH238624D CH238624A (en) | 1942-08-10 | 1942-08-10 | Process for the production of a new azo dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH238624A (en) |
-
1942
- 1942-08-10 CH CH238624D patent/CH238624A/en unknown
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CH238624A (en) | Process for the production of a new azo dye. | |
CH238626A (en) | Process for the production of a new azo dye. | |
CH238625A (en) | Process for the production of a new azo dye. | |
CH238623A (en) | Process for the production of a new azo dye. | |
CH236997A (en) | Process for the production of a new azo dye. | |
CH237130A (en) | Process for the production of a new azo dye. | |
CH119898A (en) | Process for the production of a new dye. | |
CH198139A (en) | Process for the preparation of an azo dye. | |
CH165415A (en) | Process for the production of a new azo dye. | |
CH234786A (en) | Process for the production of a new azo dye. | |
CH199961A (en) | Process for the preparation of an azo dye. | |
CH292301A (en) | Process for the preparation of a monoazo dye of the pyrazolone series. | |
CH226018A (en) | Process for the production of a new azo dye. | |
CH172572A (en) | Process for the production of a new azo dye. | |
CH165039A (en) | Process for the production of a new azo dye. | |
CH174519A (en) | Process for the production of a new azo dye. | |
CH199962A (en) | Process for the preparation of an azo dye. | |
CH177840A (en) | Process for the production of a new azo dye. | |
CH119895A (en) | Process for the production of a new dye. | |
CH175031A (en) | Process for the production of a new azo dye. | |
CH171233A (en) | Process for the production of a new azo dye. | |
CH224119A (en) | Process for the preparation of a new pyrazolone derivative. | |
CH202747A (en) | Process for the preparation of an azo dye. | |
CH301643A (en) | Process for the preparation of an acidic monoazo dye. | |
CH162740A (en) | Process for the production of a new substantive azo dye. |