CH137651A - Process for the preparation of an azo dye. - Google Patents
Process for the preparation of an azo dye.Info
- Publication number
- CH137651A CH137651A CH137651DA CH137651A CH 137651 A CH137651 A CH 137651A CH 137651D A CH137651D A CH 137651DA CH 137651 A CH137651 A CH 137651A
- Authority
- CH
- Switzerland
- Prior art keywords
- mol
- amino
- acid
- carried out
- copper
- 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
- C09B45/00—Complex metal compounds of azo dyes
- C09B45/02—Preparation from dyes containing in o-position a hydroxy group and in o'-position hydroxy, alkoxy, carboxyl, amino or keto groups
- C09B45/24—Disazo or polyazo compounds
- C09B45/28—Disazo or polyazo compounds containing copper
-
- 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
- C09B43/00—Preparation of azo dyes from other azo compounds
- C09B43/12—Preparation of azo dyes from other azo compounds by acylation of amino groups
- C09B43/136—Preparation of azo dyes from other azo compounds by acylation of amino groups with polyfunctional acylating agents
- C09B43/14—Preparation of azo dyes from other azo compounds by acylation of amino groups with polyfunctional acylating agents with phosgene or thiophosgene
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Coloring (AREA)
Description
Verfahren zur Herstellung eines Azofarbstoffes. Es wurde gefunden,, dass man einen neuen metallhaltigen Azofarbstoff erhält, wenn man 1 Mol. 2-Amino-5-oxynaphthalin-7-sulfo,säure, 1. Mol. diazotierte 1-Amino-4-sulfo:
2-benzo@l- carbonsäure, 1 Mol. Phosgen, 1 Mol. 4-Amino- 4'-oxy-1.,1'-azobenzol-3'-carbonsäure und kup ferabgebende Mittel aufeinander einwirken lässt und diese verschiedenen Operationen der art vornimmt, dass die Behandlung mit den kupferabgebenden Mitteln nicht vor derKupp- lungsreaktion vorgenommen und die Kon densation mit Phosgen derart durchgeführt wird, da,ss das Moll.
2-Amino-5-oxynaphthalin- 7-sulfosäure und das Mol. 4-Amino-4'-o@xy 1,1'-azobenzol-3'-ca.rbonsäure durch eine NN- Gruppe an den Carbonylrest gebunden wer den.
Der neue Farbstoff bildet ein dunkel rotbraunes Pulver, löst sich in Wasser mit gelbbrauner Farbe und erzeugt auf Baum wolle oder Kunstseiden, wie Viskose- oder Kupferoxydammoniakseide, gelbbraune Töne von vorzüglicher Lichtechtheit.
<I>Beispiel:</I> Man stehlt in bekannter Weise den Harn stoff aus 1 Mol. 2-Amino-5-oxynaphthalin-7- sulfosäure, 1 Mol. Phos.gen und 1 Mol. 4- Amino=4'- oxy-1,1'- azobenzoll -3'-iparbonsäure dar.
52,7 Teile des obigen Ilarnstoffes wer den als Natronsalz in 400 Teilen Wasser suspendiert, mit 14 Teilen 30 %iger Natron lauge und 20 Teilen Natriumcarbonat ver rührt.
Man rührt bei 10 bis 12' eine Diazo- lösung aus 21,6 Teilen 1-Amino-4-sulfo-2- benzolcarbonsäure zu, isoliert nach beendeter Kupplung den Farbstoff in üblicher Weise, führt wieder in<B>1500</B> Teilen Wasser an, wärmt auf 60 auf, säuert mit verdünnter Schwefelsäure an, gibt 60 Teile kristallisier tes Kupfersulfat in Form einer 20 %igen Lö sung zu, rührt zwei bis.
drei Stunden bei 80 bis 85 und filtriert die völlig ausgeschie dene Kupferverbindung ab. Die Farbsäure wird in verdünnter Sodalö.sung angerührt und das gebildete Natronsalz mit Kochsalz ausgeschieden.
Zum gleichen Produkt gelangt man selbst- verständlich, auch, wenn man die Reihenfolge der beschriebenen bezw. erwähnten Operatio. nen sinngemäss ändert.
Process for the preparation of an azo dye. It has been found that a new metal-containing azo dye is obtained if 1 mole of 2-amino-5-oxynaphthalene-7-sulfo, acid, 1 mole. Of diazotized 1-amino-4-sulfo:
2-benzo @ l-carboxylic acid, 1 mol. Phosgene, 1 mol. 4-Amino-4'-oxy-1., 1'-azobenzene-3'-carboxylic acid and copper-releasing agents can act on one another and these different operations of the art makes sure that the treatment with the copper-releasing agents is not carried out before the coupling reaction and that the condensation with phosgene is carried out in such a way that the minor.
2-Amino-5-oxynaphthalene-7-sulfonic acid and the mol. 4-Amino-4'-o @ xy 1,1'-azobenzene-3'-carboxylic acid bound to the carbonyl radical by an NN group.
The new dye forms a dark red-brown powder, dissolves in water with a yellow-brown color and produces yellow-brown shades of excellent lightfastness on cotton or artificial silk, such as viscose or copper oxide ammonia silk.
<I> Example: </I> The urea is stolen from 1 mole of 2-amino-5-oxynaphthalene-7-sulfonic acid, 1 mole of phosgene and 1 mole of 4- amino = 4'- oxy-1,1'-azobenzoll -3'-iparboxylic acid.
52.7 parts of the above Ilarnstoffes who suspended the sodium salt in 400 parts of water, stirred with 14 parts of 30% sodium hydroxide solution and 20 parts of sodium carbonate.
A diazo solution of 21.6 parts of 1-amino-4-sulfo-2-benzenecarboxylic acid is stirred in at 10 to 12 minutes; after coupling has ended, the dye is isolated in the customary manner and leads again to 1500 Parts of water, warms up to 60, acidified with dilute sulfuric acid, is 60 parts of crystallized copper sulfate in the form of a 20% solution, stirs two to.
three hours at 80 to 85 and filtered off the completely excreted copper compound. The color acid is mixed in dilute soda solution and the sodium salt formed is eliminated with common salt.
Of course, you get to the same product, even if you follow the order of the described or mentioned Operatio. changes accordingly.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH135748T | 1928-07-14 | ||
CH137651T | 1928-07-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH137651A true CH137651A (en) | 1930-01-15 |
Family
ID=25712559
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH137651D CH137651A (en) | 1928-07-14 | 1928-07-14 | Process for the preparation of an azo dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH137651A (en) |
-
1928
- 1928-07-14 CH CH137651D patent/CH137651A/en unknown
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