AT54366B - Process for the production of vat dyes. - Google Patents

Process for the production of vat dyes.

Info

Publication number
AT54366B
AT54366B AT54366DA AT54366B AT 54366 B AT54366 B AT 54366B AT 54366D A AT54366D A AT 54366DA AT 54366 B AT54366 B AT 54366B
Authority
AT
Austria
Prior art keywords
amino
oxy
vat dyes
thionaphthene
production
Prior art date
Application number
Other languages
German (de)
Original Assignee
Kalle & Co Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE1907240805D external-priority patent/DE240805C/de
Application filed by Kalle & Co Ag filed Critical Kalle & Co Ag
Application granted granted Critical
Publication of AT54366B publication Critical patent/AT54366B/en

Links

Landscapes

  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



  Verfahren zur Herstellung von   Küpenfarbstoffen.   



   In weiterer Ausführung des Verfahrens der Stammpatentschrift Nr. 54365 wurde nunmehr gefunden, dass das 5-Amino-3-oxy- (1)-thionaphten bzw. die   5-Amioo-3-oxy- (I) -thio-   naphten-2-karbonsäure oder deren Alkyl-, Aryl-, Azidylderivate sich in   granschwarze   Küpenfarbstoffe   überführen   lassen. 



   Beispiel : Die durch Behandlung der p-Aminophenylthioglykol-o-karbonsäure   COOH   : SCH2 COOH: NH2 
 EMI1.1 
 mit Alkalihydraten usw. erhältliche 5-Amino-3-oxy-(1)-thionaphten-2-karbonsäure löst man in   überschüssiger   kalter Sodalösung und setzt in der Kälte oder unter nur schwachem Erwärmen Ferrizyankalium bis zur schwachen Gelbfärbung der Mutterlauge hinzu. Hiebei scheidet sich der KUpenfarbstoff in grünlichschwarzen Flocken aus. Derselbe färbt Baumwolle und Wolle in grünlichblaugrauen Tönen. 



   Bei der Oxydation kann man auch in anderer Weise verfahren : Erwärmt man die kalt hergestellte Lösung der 5-Amino-3-oxy-(1)-thionaphten-2-karbonsäure, so scheidet sich das 5-Amino-3-oxy- (1)-thionaphten in Form von chinongelben Nädelchen aus, deren Lösung in Äther   ausserordentlich   stark gelbgrün fluoresziert ; dieses 5-Amino-3-oxy-   (l)-thionaphten   kann man dann mit Ferrizyankalium oder mit Luft in neutraler oder schwach alkalischer Lösung oxydieren. 



   An Stelle der 5-Amino-3-oxy-(1)-thionaphten-2-karbonsäure bzw. des 6-Amino-3-oxy- -(1)-thionaphtens können auch dessen Alkyl-, Aryl-oder Azidyl-Substitutionsprodukte, z. B. das-   wenige   aus   p- ToluolsuUochlorid   oder z. B. dasjenige aus Dinitrochlorbenzol und 5-Amino-   -3-oxy1)-thionaphten, Verwendung finden.   

**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



   <Desc / Clms Page number 1>
 



  Process for the production of vat dyes.



   In a further execution of the process of the parent patent specification No. 54365 it has now been found that the 5-amino-3-oxy- (1) -thionaphthene and the 5-amino-3-oxy- (I) -thio- naphthene-2- carboxylic acid or its alkyl, aryl or azidyl derivatives can be converted into gran black vat dyes.



   Example: The treatment of p-aminophenylthioglycol-o-carboxylic acid COOH: SCH2 COOH: NH2
 EMI1.1
 5-Amino-3-oxy- (1) -thionaphthene-2-carboxylic acid obtainable with alkali hydrates, etc., is dissolved in excess cold soda solution and potassium ferricyanide is added in the cold or with only slight warming until the mother liquor turns pale yellow. The pot dye is deposited in greenish-black flakes. The same dyes cotton and wool in greenish-blue-gray tones.



   Another way of proceeding with the oxidation is that if the cold solution of 5-amino-3-oxy- (1) -thionaphthene-2-carboxylic acid is heated, the 5-amino-3-oxy- (1 ) -thionaphthene in the form of quinone-yellow needles, the solution of which in ether fluoresces extremely strongly yellow-green; This 5-amino-3-oxy- (l) -thionaphthene can then be oxidized with potassium ferricyanide or with air in a neutral or weakly alkaline solution.



   Instead of 5-amino-3-oxy- (1) -thionaphten-2-carboxylic acid or 6-amino-3-oxy- (1) -thionaphthene, its alkyl, aryl or azidyl substitution products, z. B. the few from p-ToluolsuUochlorid or z. B. that of dinitrochlorobenzene and 5-amino- -3-oxy1) -thionaphten, find use.

** WARNING ** End of DESC field may overlap beginning of CLMS **.

Claims (1)

PATENT-ANSPRUCH : Abänderung des durch Stammpatent Nr. 54365 geschützten Verfahrens zur Darstellung von stickstoffhaltigen Küpenfarbstoffen der Thionindigoreihe, dadurch gekennzeichnet, dass man hier zwecks Gewinnung grünschwarzer Farbstoffe 5-Amino-3-oxy-(1)-thionaphten- - 2-I {arhonsäure bzw. 5-Amino-3-oxy-(1)-thionaphten und deren Alkyl-, Aryl-, Azidyl-Sub- stitntionsprodukte mit Luft oder schwachen Oxydationsmitteln in schwach ätzalkalischer oder alkalikarbonatalkalischer Lösung oder in neutraler Suspension oxydiert. **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. PATENT CLAIM: Modification of the process for the preparation of nitrogen-containing vat dyes of the thionindigo series, which is protected by the parent patent No. 54365, characterized in that 5-amino-3-oxy- (1) -thionaphten- - 2-I {arhonic acid or 5 -Amino-3-oxy- (1) -thionaphthene and their alkyl, aryl, azidyl substitution products are oxidized with air or weak oxidizing agents in a weakly alkaline or alkaline carbonate solution or in neutral suspension. ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT54366D 1907-02-19 1909-03-19 Process for the production of vat dyes. AT54366B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1907240805D DE240805C (en) 1907-02-19

Publications (1)

Publication Number Publication Date
AT54366B true AT54366B (en) 1912-07-10

Family

ID=5907899

Family Applications (1)

Application Number Title Priority Date Filing Date
AT54366D AT54366B (en) 1907-02-19 1909-03-19 Process for the production of vat dyes.

Country Status (1)

Country Link
AT (1) AT54366B (en)

Similar Documents

Publication Publication Date Title
AT54366B (en) Process for the production of vat dyes.
DE470503C (en) Process for the preparation of anthraquinone derivatives
AT114446B (en) Process for the preparation of new arsenic and antimony compounds of a heterocyclic nature.
AT87646B (en) Process for the preparation of cellulose derivatives.
AT138024B (en) Process for the production of crystallized humus compounds.
AT45603B (en) Process for the preparation of new reduction products of acenaphthenequinone.
DE543553C (en) Process for the preparation of oxidized metal complex salts
AT70873B (en) Process for the preparation of aldehydes of the anthraquinone series.
AT66597B (en) Process for the preparation of compounds of the diaminodioxyarsenobenzenes.
DE445390C (en) Process for the production of dinaphthyldicarboxylic acids
AT55882B (en) Process for the production of vat dyes.
AT45596B (en) Process for the preparation of black wool dyes.
AT54635B (en) Process for the preparation of vat dyes.
CH234521A (en) Process for the production of a urea derivative.
AT41550B (en) Process for accelerating oxidations to be carried out using nitric acid.
DE630328C (en) Process for the preparation of aromatic N-nitramines
CH124668A (en) Process for the preparation of a dinaphthyl dicarboxylic acid.
DE547724C (en) Process for the preparation of o-nitroarylarsic acids
AT43882B (en) Process for the preparation of the alkyl pseudoisatins.
DE440772C (en) Process for the preparation of acridine cyanide
AT18453B (en) Process for the preparation of a disazo dye for wool from o-o-diamido-p-phenolsulfonic acid.
DE528113C (en) Process for the preparation of pyridinarsic acids
AT47157B (en) Process for the preparation of a water-insoluble disazo dye.
AT67682B (en) Process for making durable nitrobenzene diazonium compounds.
CH511880A (en) Basic azo dyestuffs