CH234523A - Process for the production of a vat dye. - Google Patents
Process for the production of a vat dye.Info
- Publication number
- CH234523A CH234523A CH234523DA CH234523A CH 234523 A CH234523 A CH 234523A CH 234523D A CH234523D A CH 234523DA CH 234523 A CH234523 A CH 234523A
- Authority
- CH
- Switzerland
- Prior art keywords
- production
- dye
- vat
- vat dye
- amino
- 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
- C09B5/00—Dyes with an anthracene nucleus condensed with one or more heterocyclic rings with or without carbocyclic rings
- C09B5/002—Dyes with an anthracene nucleus condensed with one or more heterocyclic rings with or without carbocyclic rings the heterocyclic rings being condensed in peri position and in 1-2 or 2-3 position
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Description
Zusatzpatent zum Hauptpatent Nr. 232371. Verfahren zur Herstellung eines Nüpenfarbstoffes. Gegenstand vorliegenden Patentes ist ein Verfahren zur Darstellung eines neuen Kü- penfarbstoffes durch Umsetzung des Halo genids der Formel
EMI0001.0005
mit 4- Amino - 4'- chloranthrachinon- 2.1- (N)- 1'. 2'-(N)-benzacridon. Die Reaktion wird vor teilhaft in Gegenwart eines indifferenten Lö sungsmittels wie Nitrobenzol, Trichlorbenzol oder Phenol bei erhöhten Temperaturen durchgeführt.
Der erhältliche Farbstoff löst sich in kon zentrierter Schwefelsäure mit orangegelber Farbe und färbt Baumwolle aus violetter Küpe in gelbstichig grünen Tönen von sehr guten Echtheitseigenschaften an.
Das als Ausgangsmaterial benutzte Halo genid der obenstehenden Formel kann im Falle des Chlorids hergestellt werden, indem man 2-Aminoanthrachinon-3-carbonsäure zu nächst zum 1-Bromderivat umsetzt und dieses durch Behandlung mit Polysulfid-Ammoniak in die Thiazolanthron-2-amino-3-carbonsäure überführt. Die weitere Behandlung kann nach derselben Methode erfolgen, wie dies in der schweiz. Patentschrift Nr. 200273 für die 2-Aminoanthrachinon-3-carbonsäure beschrie ben ist.
Das schliesslich erhaltene Chlorid der obenstehenden Formel liegt in Form gelber Nadeln vom Schmelzpunkt 317 bis 318' vor. <I>Beispiel:</I> 14 Gewichtsteile 4-Amino-4'-chloranthra- chinon-2.1-(N)-1'.2'-(N)-benzacridon, 22 Ge wichtsteile des Chlorids der Förmel
EMI0002.0001
und 350 Gewichtsteile Phenol werden so lange zum Sieden erhitzt, bis die Salzsäureent- wicklung beendet ist.
Die Schmelze wird bei l.30 mit warmem Nitrobenzol verdünnt und bei 90 abgesaugt; der Farbstoff (oliv- farbene Nädelchen) wird mit warmem Ni- trobenzol und Alkohol gewaschen und ge- trocknet. Er kann durch Auskochen mit Pv- ridin gereinigt werden.
In konzentrierter Schwefelsäure löst er sich mit orangegelber Farbe und färbt Baumwolle aus violetter Küpe in gelbstichig grünen Tönen von sehr Lruten Echtheiten.
Additional patent to main patent no. 232371. Process for the production of a pebble dye. The present patent is a process for the preparation of a new vat dye by converting the halide of the formula
EMI0001.0005
with 4-amino-4'-chloranthraquinone-2.1- (N) - 1 '. 2 '- (N) -benzacridone. The reaction is carried out before geous in the presence of an inert solvent such as nitrobenzene, trichlorobenzene or phenol at elevated temperatures.
The available dye dissolves in concentrated sulfuric acid with an orange-yellow color and dyes cotton from a violet vat in yellowish green tones with very good fastness properties.
The halide of the above formula used as starting material can be prepared in the case of the chloride by converting 2-aminoanthraquinone-3-carboxylic acid to the next to the 1-bromo derivative and this by treatment with polysulfide ammonia into the thiazolanthrone-2-amino-3 -carboxylic acid transferred. Further treatment can follow the same method as in Switzerland. Patent No. 200273 for the 2-aminoanthraquinone-3-carboxylic acid is described ben.
The chloride of the above formula finally obtained is in the form of yellow needles with a melting point of 317 to 318 '. <I> Example: </I> 14 parts by weight of 4-amino-4'-chloranthraquinone-2.1- (N) -1'.2 '- (N) -benzacridone, 22 parts by weight of the chloride of the formula
EMI0002.0001
and 350 parts by weight of phenol are heated to the boil until the evolution of hydrochloric acid has ended.
The melt is diluted with warm nitrobenzene at 1.30 and sucked off at 90; the dye (olive-colored needles) is washed with warm nitrobenzene and alcohol and then dried. It can be cleaned by boiling it with pvidin.
It dissolves in concentrated sulfuric acid with an orange-yellow color and dyes cotton from a violet vat in yellow-tinged green shades of very rod fastness.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE234523X | 1939-05-26 | ||
CH232371T | 1941-06-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH234523A true CH234523A (en) | 1944-09-30 |
Family
ID=25727701
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH234523D CH234523A (en) | 1939-05-26 | 1941-06-20 | Process for the production of a vat dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH234523A (en) |
-
1941
- 1941-06-20 CH CH234523D patent/CH234523A/en unknown
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