CH263547A - Process for the production of a new condensation product. - Google Patents

Process for the production of a new condensation product.

Info

Publication number
CH263547A
CH263547A CH263547DA CH263547A CH 263547 A CH263547 A CH 263547A CH 263547D A CH263547D A CH 263547DA CH 263547 A CH263547 A CH 263547A
Authority
CH
Switzerland
Prior art keywords
blue
red
condensation product
production
new
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 CH263547A publication Critical patent/CH263547A/en

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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

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Coloring (AREA)

Description

  

  Verfahren zur     Herstellung    eines neuen Kondensationsproduktes.    Die vorliegende Erfindung betrifft ein  Verfahren zur Herstellung eines neuen Kon  densationsproduktes und ist dadurch gekenn  zeichnet, dass man das nach dem Verfahren  der Patentschrift     Nr.251646    erhältliche 3,7       Dibrom-5-amino-8-oxy-1,4-naphthochinonimid-          (1)    mit Anilin in Eisessig in Gegenwart von       Natriumaeetat    bei 900 C kondensiert.    <I>Beispiel:</I>  50 g     3,7-Dibrom-5-amino-8-oxy-1,4-naphtho-          ehinonimid-(1)    werden mit 15 g Anilin in  150 g Eisessig in Gegenwart von 25g Na  triumacetat während 11/2 Stunden auf 900 C  erhitzt und auf 1,5 Liter Wasser ausgeladen.

    Der Niederschlag wird     abfiltriert,    neutral ge  waschen und getrocknet. Das schwarzblaue  Produkt löst sich in Alkohol rotstickig blau,  in Schwefelsäure rotbraun. Die schwefelsaure  Lösung wird auf Zusatz von Formaldehyd  grünstickig blau, auf Zusatz von Borsäure    nach Erwärmen     karmin.    Die neue Verbin  dung färbt     Aeetatseide    rotstickig marineblau.



  Process for the production of a new condensation product. The present invention relates to a process for the preparation of a new condensation product and is characterized in that the 3,7 dibromo-5-amino-8-oxy-1,4-naphthoquinonimide ( 1) condensed with aniline in glacial acetic acid in the presence of sodium acetate at 900 C. <I> Example: </I> 50 g of 3,7-dibromo-5-amino-8-oxy-1,4-naphtho-ehinonimid- (1) are mixed with 15 g of aniline in 150 g of glacial acetic acid in the presence of 25 g of Na Trium acetate heated to 900 C for 11/2 hours and discharged into 1.5 liters of water.

    The precipitate is filtered off, washed neutral and dried. The black-blue product dissolves in alcohol to a red-sticky blue, in sulfuric acid red-brown. The sulfuric acid solution turns greenish blue on addition of formaldehyde, and carmine on addition of boric acid after warming. The new connection dyes acetate silk with a red embroidery navy blue.

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 3,7-Dibrom-5-amino-8- oxy-1,4-naphthochinonimid-(1) mit Anilin in Eisessig in Gegenwart von Natriumacetat bei 900 C kondensiert. Die neue Verbindung stellt ein schwarz blaues Produkt dar, das sich in Alkohol rot stickig blau und in Schwefelsäure rotbraun löst. PATENT CLAIM: Process for the preparation of a new condensation product, characterized in that the 3,7-dibromo-5-amino-8-oxy-1,4-naphthoquinonimide- (1) obtainable by the process according to patent claim of patent specification No. condensed with aniline in glacial acetic acid in the presence of sodium acetate at 900 C. The new compound is a black-blue product that dissolves in alcohol in a red, stuffy blue color and in sulfuric acid in a red-brown color. Die schwefelsaure Lösung färbt sich auf Zusatz von Formaldehyd grünstickig blau, auf Zusatz von Borsäure nach Erwärmen karmin. Die neue Verbindung färbt Acetatseide rot stickig marineblau. The sulfuric acid solution turns a greenish blue on the addition of formaldehyde, and carmine on the addition of boric acid after heating. The new compound dyes acetate silk red stuffy navy blue.
CH263547D 1946-04-26 1946-04-26 Process for the production of a new condensation product. CH263547A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH263547T 1946-04-26
CH258588T 1948-12-15

Publications (1)

Publication Number Publication Date
CH263547A true CH263547A (en) 1949-08-31

Family

ID=25730197

Family Applications (1)

Application Number Title Priority Date Filing Date
CH263547D CH263547A (en) 1946-04-26 1946-04-26 Process for the production of a new condensation product.

Country Status (1)

Country Link
CH (1) CH263547A (en)

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