CH209544A - Process for the preparation of a new derivative of an azo dye. - Google Patents
Process for the preparation of a new derivative of an azo dye.Info
- Publication number
- CH209544A CH209544A CH209544DA CH209544A CH 209544 A CH209544 A CH 209544A CH 209544D A CH209544D A CH 209544DA CH 209544 A CH209544 A CH 209544A
- Authority
- CH
- Switzerland
- Prior art keywords
- dye
- preparation
- aminobenzene
- new derivative
- azo dye
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Zusatzpatent zum Hauptpatent Nr. 205164. Verfahren zur Herstellung eines neuen Derivates eines Azofarbstoffes. Es wurde gefunden, dass man ein neues Derivat eines Azofarbstoffes erhält, wenn man 1 Mol des Trisazofarbstoffes, der erhalten wird durch Vereinigen eines Moleküls der 1.3-Diaminobenzol-4-sulfonsäure mit 1 Mol des dianotierten Disazofarbstoffes aus diano tierter 2-Aminonaphthalin-6.8-disulfonsäui e und 1-Methyl-4-metboxy-3-aminobenzol,
Wei- terdiazotieren und Vereinigen mit einem Mole kül 1.4-Diinethyl-3-aminobenzol, mit 2 Mol Benzoylchlorid in Gegenwart einer tertiären Base acyliert.
Der neue Farbstoff stellt ein dunkelbraunes Pulver dar und färbt Baumwolle in echten rotbraunen Tönen.
Beispiel: 1 Teil des Trisazofarbstoffes, der erhalten wird durch Vereinigen der 1.3-Diaminobenzol- 4-sulfonsäure mit dem dianotierten Disazo- farbstoff aus dianotierter 2-Arninonaphthalin- 6.8-disulfonsäure und 1-Methyl-4-methoxy-3- aminobenzol, Weiterdiazotieren und Vereinigen finit 1.4-Dimethyl-3-aminobenzol, wird in 3,2 Teilen Pyridin suspendiert und bei 40' mit 1,
2 Teilen Benzoylchlorid versetzt. Man er wärmt allmählich auf<B>900</B> und hält diese Temperatur 1 Stunde. Nach dieser Zeit wird das Dibenzoylprodukt abgeschieden und ge trocknet.
Additional patent to main patent no. 205164. Process for the production of a new derivative of an azo dye. It has been found that a new derivative of an azo dye is obtained if 1 mole of the trisazo dye, which is obtained by combining a molecule of 1,3-diaminobenzene-4-sulfonic acid with 1 mole of the dianotated disazo dye from diano tated 2-aminonaphthalene-6.8- disulfonic acid and 1-methyl-4-metboxy-3-aminobenzene,
Further diazotize and combine with one mole of 1,4-diynethyl-3-aminobenzene, acylated with 2 moles of benzoyl chloride in the presence of a tertiary base.
The new dye is a dark brown powder and dyes cotton in real red-brown tones.
Example: 1 part of the trisazo dye which is obtained by combining the 1,3-diaminobenzene-4-sulfonic acid with the dianotized disazo dye from dianotated 2-aminonaphthalene-6.8-disulfonic acid and 1-methyl-4-methoxy-3-aminobenzene, further diazotizing and Combine finite 1,4-dimethyl-3-aminobenzene, is suspended in 3.2 parts of pyridine and at 40 'with 1,
2 parts of benzoyl chloride were added. It is gradually heated to <B> 900 </B> and held at this temperature for 1 hour. After this time, the dibenzoyl product is deposited and dried ge.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH209544T | 1937-01-26 | ||
CH205164T | 1939-02-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH209544A true CH209544A (en) | 1940-04-15 |
Family
ID=25724131
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH209544D CH209544A (en) | 1937-01-26 | 1937-01-26 | Process for the preparation of a new derivative of an azo dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH209544A (en) |
-
1937
- 1937-01-26 CH CH209544D patent/CH209544A/en unknown
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