CH263541A - Process for the production of a new condensation product. - Google Patents

Process for the production of a new condensation product.

Info

Publication number
CH263541A
CH263541A CH263541DA CH263541A CH 263541 A CH263541 A CH 263541A CH 263541D A CH263541D A CH 263541DA CH 263541 A CH263541 A CH 263541A
Authority
CH
Switzerland
Prior art keywords
production
condensation product
new condensation
blue color
blue
Prior art date
Application number
Other languages
German (de)
Inventor
Ag Sandoz
Original Assignee
Ag Sandoz
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
Application filed by Ag Sandoz filed Critical Ag Sandoz
Publication of CH263541A publication Critical patent/CH263541A/en

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
    • C09B13/00—Oxyketone dyes
    • C09B13/02—Oxyketone dyes of the naphthalene series, e.g. naphthazarin

Description

  

  Verfahren zur Herstellung eines neuen Kondensationsproduktes.    Die vorliegende Erfindung betrifft ein  Verfahren zur Herstellung eines neuen Kon  densationsproduktes und ist dadurch gekenn  zeichnet, (lass man das nach dem Verfahren  der Patentschrift Nr. 251646 erhältliche     bro-          mierte        Naphtliocliinonimid    mit     Benzidin    kon  densiert.  



  <I>Beispiel:</I>  1.7,3 g des nach dem Beispiel der     Patent-          Schrift    Nr. 257.646 erhältlichen     bromierten          Naphtliochinonimidswerden    in 200 cm'     Ätha-          nol    aufgeschwemmt und nach Zusatz von  10 g     Benzidin,    0,5 g Borsäure und 5 g     Na-          triuniaeetat    am     Rückflussküliler    während 20       ,Stunden    zum Sieden erhitzt.

   Nach     Abdestil-          lieren    des Alkohols wird der Rückstand in  Wasser ausgeladen, mit Salzsäure kongosauer  gestellt, filtriert und neutral gewaschen. Man    erhält ein dunkles Pulver, das in Äthanol mit  blauer und in     H_SO,    ebenfalls mit blauer  Farbe löslich ist und vegetabilische Fasern  aus einem     Schwefelnatriumbad    in     graublauen     Tönen färbt.



  Process for the production of a new condensation product. The present invention relates to a process for the production of a new condensation product and is characterized in that the brominated naphthiocliinonimide obtainable by the process of patent specification No. 251646 is condensed with benzidine.



  <I> Example: </I> 1.7.3 g of the brominated naphthioquinonimide obtainable according to the example of patent specification no. 257.646 are suspended in 200 cm of ethanol and, after adding 10 g of benzidine, 0.5 g of boric acid and g of sodium acetate on the reflux cooler heated to boiling for 20 hours.

   After the alcohol has been distilled off, the residue is discharged into water, acidified to Congo with hydrochloric acid, filtered and washed neutral. A dark powder is obtained which is soluble in ethanol with a blue color and in H_SO, likewise with a blue color, and dyes vegetable fibers from a sulfur-sodium bath in gray-blue tones.

Claims (1)

PATENTANSPRUCH Verfahren zur Herstellung eines neuen Kondensationsproduktes, dadurch gekenn zeichnet, dass man das nach dem Verfahren gemäss Patentanspruch der Patentschrift. Nr. 251646 erhältliche bromierte Naphthoclii- nonimid mit Benzidin kondensiert. Die nette Verbindung stellt ein dunkles Pulver dar, das in Äthanol mit blauer und in H"SO., ebenfalls mit blauer Farbe löslich ist und vegetabilische Fasern aus einem Schwefelnatriumbad in graublauen Tönen färbt. PATENT CLAIM Process for the production of a new condensation product, characterized in that it is performed according to the process according to the patent claim of the patent. No. 251646 available brominated naphthoclinonimide condensed with benzidine. The nice combination is a dark powder, which is soluble in ethanol with a blue color and in H "SO., Also with a blue color and dyes vegetable fibers from a sulfur-sodium bath in gray-blue tones.
CH263541D 1946-04-26 1946-04-26 Process for the production of a new condensation product. CH263541A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH263541T 1946-04-26
CH258588T 1948-12-15

Publications (1)

Publication Number Publication Date
CH263541A true CH263541A (en) 1949-08-31

Family

ID=25730191

Family Applications (1)

Application Number Title Priority Date Filing Date
CH263541D CH263541A (en) 1946-04-26 1946-04-26 Process for the production of a new condensation product.

Country Status (1)

Country Link
CH (1) CH263541A (en)

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