CH308469A - Process for the preparation of a metallizable disazo dye. - Google Patents
Process for the preparation of a metallizable disazo dye.Info
- Publication number
- CH308469A CH308469A CH308469DA CH308469A CH 308469 A CH308469 A CH 308469A CH 308469D A CH308469D A CH 308469DA CH 308469 A CH308469 A CH 308469A
- Authority
- CH
- Switzerland
- Prior art keywords
- acid
- amino
- dependent
- ethoxy
- fumaric acid
- 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
- 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
- C09B43/145—Preparation of azo dyes from other azo compounds by acylation of amino groups with polyfunctional acylating agents with polycarboxylic acids
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Description
<B>Zusatzpatent</B> zum Hauptpatent Nr. 304388. Verfahren zur Herstellung eines metallisierbaren Disazofarbatoffes. Gegenstand des vorliegenden Patentes ist ein Verfahren zur Herstellung eines metalli- sierbaren Disazofarbstoffes, welches darin besteht, dass man 2, Mol der durch Kuppeln von diazotierter 2-Amino-5-nitrobenzol-l-car- bonsäure mit 2-Carbo-(2:
'-äthoxy)-äthoxy- amino-5-oxynaphthalin-7-sulfonsäure und nachfolgende Reduktion der Nitrogruppe zur Aminogruppe erhältlichen Aminomonoazover- bindung mit 1 Mol eines Fumarsäuredihalo- genides umsetzt.
Im nachfolgenden Beispiel bedeuten die Teile Gewichtsteile.
<I>Beispiel:</I> 51,8 Teile der durch Kuppeln von diazo- tierter 2-Amino-5-nitrobenzol-1-carbonsäure mit 2-Ca.rbo-(2'-äthoxy)-äthoxyamino-5,-oxy- iiaphthalin-7-sulfonsäure und anschliessende Überführung der Nitrogruppe in die Amino- gruppe erhältlichen Aminomonoazoverbindung werden in Form des Dilithiumsalzes in 4000 Teilen Wasser gelöst.
Die Lösung versetzt man gleichmässig innerhalb von etwa 7 Stunden mit einer Lösung von 9,2 Teilen Fumarsäure- dichlorid in 40 Teilen Chlorbenzol. Durch gelegentlichen Zusatz von wenig Lithium- earbonat wird der pH-Wert der Kondensations lösung stets zwischen 5,5 und 7 gehalten. Nach erfolgter Kondensation erwärmt man die Masse auf 90 - 9,5 , salzt daraus den gebilde ten Disazofarbstoff aus, filtriert ihn ab und trocknet ihn.
Der neue, metallisierbare Disazofarbstoff löst sich in Wasser und in konzentrierter Schwefelsäure mit roter Farbe und färbt Baumwolle und Fasern aus regenerierter Cellu lose in roten Tönen, welche, mit einem kupferabgebenden Mittel behandelt, ausge zeichnet licht-, wasch- und schweissecht sind.
<B> Additional patent </B> to the main patent No. 304388. Process for the production of a metallizable disazo carbate. The subject of the present patent is a process for the preparation of a metallizable disazo dye, which consists in that 2, mol of the coupling of diazotized 2-amino-5-nitrobenzene-1-carboxylic acid with 2-carbo- (2:
'-ethoxy) -ethoxy-amino-5-oxynaphthalene-7-sulfonic acid and subsequent reduction of the nitro group to the amino group, the aminomonoazo compound obtainable is reacted with 1 mol of a fumaric acid dihalogenide.
In the following example, the parts are parts by weight.
<I> Example: </I> 51.8 parts of the compound obtained by coupling diazotized 2-amino-5-nitrobenzene-1-carboxylic acid with 2-Ca.rbo- (2'-ethoxy) -ethoxyamino-5, - Oxy-iiaphthalene-7-sulfonic acid and subsequent conversion of the nitro group into the amino group, the aminomonoazo compound obtainable is dissolved in 4000 parts of water in the form of the dilithium salt.
A solution of 9.2 parts of fumaric acid dichloride in 40 parts of chlorobenzene is added evenly to the solution over a period of about 7 hours. The pH of the condensation solution is always kept between 5.5 and 7 by occasionally adding a little lithium carbonate. After the condensation has taken place, the mass is heated to 90-9.5, the disazo dye formed is salted out, filtered off and dried.
The new, metallizable disazo dye dissolves in water and in concentrated sulfuric acid with a red color and dyes cotton and fibers made from regenerated cellulose in red shades, which, when treated with a copper-releasing agent, are excellent lightfast, washfast and perspiration-resistant.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH308469T | 1952-04-30 | ||
CH304388T | 1956-05-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH308469A true CH308469A (en) | 1955-07-15 |
Family
ID=25734820
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH308469D CH308469A (en) | 1952-04-30 | 1952-04-30 | Process for the preparation of a metallizable disazo dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH308469A (en) |
-
1952
- 1952-04-30 CH CH308469D patent/CH308469A/en unknown
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CH308469A (en) | Process for the preparation of a metallizable disazo dye. | |
CH308470A (en) | Process for the preparation of a metallizable disazo dye. | |
CH308468A (en) | Process for the preparation of a metallizable disazo dye. | |
CH306866A (en) | Process for the preparation of a metallizable disazo dye. | |
CH308461A (en) | Process for the preparation of a metallizable disazo dye. | |
CH306862A (en) | Process for the preparation of a metallizable disazo dye. | |
CH342312A (en) | Process for the preparation of a substantive disazo dye | |
CH307182A (en) | Process for the production of a copper-containing azo dye. | |
CH287561A (en) | Process for the preparation of a disazo dye. | |
CH342309A (en) | Process for the preparation of a substantive disazo dye | |
CH292645A (en) | Process for the preparation of a disazo dye. | |
CH307184A (en) | Process for the production of a copper-containing azo dye. | |
CH308459A (en) | Process for the preparation of a metallizable disazo dye. | |
CH307178A (en) | Process for the production of a copper-containing azo dye. | |
CH307179A (en) | Process for the production of a copper-containing azo dye. | |
CH342310A (en) | Process for the preparation of a substantive disazo dye | |
CH306871A (en) | Process for the preparation of a metallizable trisazo dye. | |
CH292646A (en) | Process for the preparation of a disazo dye. | |
CH342315A (en) | Process for the preparation of a substantive disazo dye | |
CH308458A (en) | Process for the preparation of a metallizable disazo dye. | |
CH342314A (en) | Process for the preparation of a substantive disazo dye | |
CH306869A (en) | Process for the preparation of a metallizable trisazo dye. | |
CH342316A (en) | Process for the preparation of a substantive disazo dye | |
CH308456A (en) | Process for the preparation of a metallizable disazo dye. | |
CH308463A (en) | Process for the preparation of a copper-containing disazo dye. |