CH257951A - Process for the production of a vat dye. - Google Patents
Process for the production of a vat dye.Info
- Publication number
- CH257951A CH257951A CH257951DA CH257951A CH 257951 A CH257951 A CH 257951A CH 257951D A CH257951D A CH 257951DA CH 257951 A CH257951 A CH 257951A
- Authority
- CH
- Switzerland
- Prior art keywords
- carboxylic acid
- acid
- production
- vat dye
- red
- 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
- C09B1/00—Dyes with anthracene nucleus not condensed with any other ring
- C09B1/16—Amino-anthraquinones
- C09B1/20—Preparation from starting materials already containing the anthracene nucleus
- C09B1/36—Dyes with acylated amino groups
- C09B1/42—Dyes with acylated amino groups the acyl groups being residues of an aromatic carboxylic acid
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
<B>Zusatzpatent</B> zum Hauptpatent Nr. 252538. Verfahren zur Herstellung eines Küpenfarbatoffes. Es wurde gefunden, dass ein wertvoller liüpenfarbstoff hergestellt werden kann. -wenn man 1-Amino-4-benzovlaminoanthra.chi- non mit einem funktionellen Derivat der in 4 Stellung durch eine DibenzyloiilfamidgTuppe stibatituierten Benzol-l-carbonsäure umsetzt.
Der neue Farbstoff kristallikert in roten Nädelchen, löst sich in konz. Schwefelsäure mit roter Farbe und färbt Baumwolle aus violetter Küpe in blaustichig roten Tönen.
Als funktionelles Derivat der genannten Carbonsäure kann mit Vorteil ein Säurehalo genid, beispielsweise das Säurechlorid, ver- ivendet werden. Die Umsetzung kann bei- spielaweise in einem indifferenten Lösungs mittel, vorzugsweise von relativ hohem Siede punkt, wie Mono-, Di- oder Trichlorbenzol, vorgenommen werden, wobei vorteilhaft bei erhöhter Temperatur gearbeitet wird.
Das für das vorliegende Verfahren be nötigte Benzol-l-carbonsäure-4-sulfodibenzyl- amid bann beispielsweise durch Umsetzen von Benzol-l-carbonsäure-4-sulfochlorid mit einer wässerigen alkoholischen Lösung von Diben- zylamin hergestellt werden.
<I>Beispiel:</I> 5,4 Teile Benzol-l-carbonsäure-4-sulfo- dibenzylamid werden in 1000 Teilen wasser freiem o-Dichlorbenzol verteilt, und nach Zu fügen von 90 Teilen Thionylchlorid und einer geringen Menge Pyridin wird die Tem peratur langsam unter Rühren: auf 100 ge- steigert.
Nachdem die Temperatur 80 Minu ten unter Rühren bei 10-0 bis 1100 belassen wurde, destilliert man das überschüssige Thionylchlorid und etwas o-Diehlorbenzol ab, gibt 22,8 Teile 1-Amino-4-benzoylamino- anthrachinon hinzu und steigert die Tem peratur unter Rühren langsam zum Sieden. Nach dem Erkalten wird filtriert und gut .. mit heissem Alkohol und Äther .gewaschen.
<B> Additional patent </B> to the main patent No. 252538. Process for the production of a vat colorant. It has been found that a valuable liquid dye can be produced. if 1-amino-4-benzovlaminoanthra.chinone is reacted with a functional derivative of the benzene-1-carboxylic acid which is stibenzyloilfamide in position 4 by a dibenzyloilfamide group.
The new dye crystallizes in red needles and dissolves in conc. Sulfuric acid with red color and dyes cotton from a violet vat in bluish red tones.
An acid halide, for example the acid chloride, can advantageously be used as the functional derivative of the carboxylic acid mentioned. The reaction can, for example, be carried out in an inert solvent, preferably of a relatively high boiling point, such as mono-, di- or trichlorobenzene, it being advantageous to work at elevated temperature.
The benzene-1-carboxylic acid-4-sulfodibenzylamide required for the present process can be prepared, for example, by reacting benzene-1-carboxylic acid-4-sulfochloride with an aqueous alcoholic solution of dibenzylamine.
<I> Example: </I> 5.4 parts of benzene-1-carboxylic acid-4-sulfodibenzylamide are distributed in 1000 parts of anhydrous o-dichlorobenzene, and after adding 90 parts of thionyl chloride and a small amount of pyridine, the Temperature slowly with stirring: increased to 100.
After the temperature was left at 10-0 to 1100 for 80 minutes with stirring, the excess thionyl chloride and some o-diehlobenzene are distilled off, 22.8 parts of 1-amino-4-benzoylamino-anthraquinone are added and the temperature is increased below Stir slowly to the boil. After it has cooled down, it is filtered and washed well ... with hot alcohol and ether.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH252533T | 1944-08-03 | ||
CH257951T | 1944-08-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH257951A true CH257951A (en) | 1948-10-31 |
Family
ID=25729641
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH257951D CH257951A (en) | 1944-08-03 | 1944-08-03 | Process for the production of a vat dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH257951A (en) |
-
1944
- 1944-08-03 CH CH257951D patent/CH257951A/en unknown
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