CH158247A - Process for the production of a new vat dye. - Google Patents
Process for the production of a new vat dye.Info
- Publication number
- CH158247A CH158247A CH158247DA CH158247A CH 158247 A CH158247 A CH 158247A CH 158247D A CH158247D A CH 158247DA CH 158247 A CH158247 A CH 158247A
- Authority
- CH
- Switzerland
- Prior art keywords
- vat dye
- production
- brown
- dye
- parts
- 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
- C09B7/00—Indigoid dyes
- C09B7/10—Bis-thionapthene indigos
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Indole Compounds (AREA)
Description
Verfahren zur Herstellung eines neuen Nüpenfarbstoffes. Es wurde gefunden, dass man einen neuen Küpenfarbstoff erhält, wenn man 2,1-Naphth- thioindoxyl-5-karbonsäure mit einem 2-Anil des 2,1-Naphthtbioindoxyls kondensiert, hier auf die Karboxylgruppe des gebildeten Kon densationsproduktes halogeniert und endlich auf den erhaltenen Körper 1-Amino-4-benzoyl- aminoanthrachinon einwirken lässt.
Der erhaltene Küpenfarbstoff der Formel
EMI0001.0012
stellt ein braunes Pulver dar, das sich in Schwefelsäure mit blauer Farbe löst. Er färbt Baumwolle aus braungefärbter Küpe in rot braunen Tönen von ausgezeichneten Echt heitseigenschaften.
<I>Beispiel:</I> 24,5 Teile 2,1-Naphththioindoxyl-5-karbon- säure und 33 Teile 2-(p-Dimethylamino-)anil des 2,1-Naphththioindoxyls werden in 2000 Teilen Alkohol erhitzt, bis die Kondensation zum indigoiden Farbstoff beendet ist. Hier auf wird filtriert und getrocknet. Das er haltene Produkt ist ein braunes Pulver, das sich in Schwefelsäure mit blauer Farbe löst.
38 Teile dieses Farbstoffes werden mit 26 Teilen Thionylchlorid in 200 Teilen o-Di- chlorbenzol erwärmt, bis die Bildung des Karbonsäurechlorids beendet ist. Dieses wird filtriert, mit etwas o-Dichlorbenzol gewaschen und hierauf mit einer Suspension von 29 Tei len 1-Amino-4-benzoylaminoanthrachirron in 250 Teilen Nitrobenzol bis auf 180<B>0</B> erhitzt. Man lässt erkalten, filtriert, wäscht mit Nitro- benzol, hierauf mit Alkohol und trocknet.
Zu demselben Endprodukt gelangt man, wenn statt des 2-(p-Dimethylamino-)anil des 2,1-Naphtbthioindoxyls das 2-Anil des 2,1 Naphththioindoxyls verwendet oder wenn das Thionylchlorid durch Phosphortrichlorid bezw. Phosphortribromid ersetzt wird.
Process for the production of a new pebble dye. It has been found that a new vat dye is obtained if 2,1-naphththioindoxyl-5-carboxylic acid is condensed with a 2-anil of 2,1-naphthtbioindoxyl, halogenated here on the carboxyl group of the condensation product formed and finally on the body 1-amino-4-benzoylaminoanthraquinone can act.
The obtained vat dye of the formula
EMI0001.0012
represents a brown powder that dissolves in sulfuric acid with a blue color. It dyes cotton from a brown-dyed vat in red-brown shades with excellent fastness properties.
<I> Example: </I> 24.5 parts of 2,1-naphthioindoxyl-5-carbonic acid and 33 parts of 2- (p-dimethylamino) anil des 2,1-naphthioindoxyl are heated in 2000 parts of alcohol until the condensation to the indigoid dye has ended. Here it is filtered and dried. The product obtained is a brown powder that dissolves in sulfuric acid with a blue color.
38 parts of this dye are heated with 26 parts of thionyl chloride in 200 parts of o-dichlorobenzene until the formation of the carboxylic acid chloride has ended. This is filtered, washed with a little o-dichlorobenzene and then heated to 180 with a suspension of 29 parts of 1-amino-4-benzoylaminoanthrachirron in 250 parts of nitrobenzene. It is allowed to cool, filtered, washed with nitrobenzene, then with alcohol and dried.
The same end product is obtained if instead of 2- (p-dimethylamino) anil of 2,1-Naphtbthioindoxyls the 2-anil of 2,1 Naphthioindoxyls is used or if the thionyl chloride respectively by phosphorus trichloride. Phosphorus tribromide is replaced.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH158247T | 1931-11-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH158247A true CH158247A (en) | 1932-11-15 |
Family
ID=4412257
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH158247D CH158247A (en) | 1931-11-21 | 1931-11-21 | Process for the production of a new vat dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH158247A (en) |
-
1931
- 1931-11-21 CH CH158247D patent/CH158247A/en unknown
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