CH276609A - Process for the preparation of a new condensation product of the naphthoquinone imine series. - Google Patents

Process for the preparation of a new condensation product of the naphthoquinone imine series.

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Publication number
CH276609A
CH276609A CH276609DA CH276609A CH 276609 A CH276609 A CH 276609A CH 276609D A CH276609D A CH 276609DA CH 276609 A CH276609 A CH 276609A
Authority
CH
Switzerland
Prior art keywords
condensation product
preparation
new condensation
series
naphthoquinone imine
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 CH276609A publication Critical patent/CH276609A/en

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Description

  

  Verfahren zur Herstellung eines neuen Kondensationsproduktes  der     Naphthochinoniminreihe.            Gegenstand    des     vorliegenden    Patentes ist       eiii    Verfahren zur Herstellung eines neuen       Kondensationsprocluktes    der     Naplithochinon-          iininreihe,    welches dadurch gekennzeichnet ist,       dass    man     3,7-Dibrom-5-amino-8-oxy-7,4-naph-          thocliinoniniin-(1)

      in     CTegenwart    eines     Lö-          scuigsmittels    mit     .l-Amino-2'-o-xy-5'-inethvl-1,1'-          azobenzol    kondensiert.  



       Beispiel:          35    Teile     3,7-Dibroni-5-aniino-8-oxy-1,1-          naphtlioehinonimin-(1)    werden in 300 Teilen       Eisessig    auf 80 bis 900 erwärmt. Bei dieser  Temperatur trägt man 23 Teile     1-Amino-2'-          cx,--:5'-metlii-l-7        ,1'-azobenzol    ein.

   Man hält. die  Temperatur     zwei    Stunden bei 80 bis 900 und  isoliert das Produkt. durch Verdünnen der  Masse mit Wasser, Filtration, Waschen und       Troehnen.    Das neue Kondensationsprodukt    färbt.     Aeetatseide    und     Superpolyaniidfasern     besonders kräftig rein grün. Es löst sich in  Alkohol rein grün, in konzentrierter     Sehwe-          felsäure        rotstiehig    braun und oliv auf Zusatz  von Formaldehyd.



  Process for the preparation of a new condensation product of the naphthoquinone imine series. The subject of the present patent is a process for the preparation of a new condensation product of the Naplithoquinoninin series, which is characterized in that 3,7-dibromo-5-amino-8-oxy-7,4-naphthocliinoninin- (1)

      condensed in the presence of a solvent with .l-amino-2'-o-xy-5'-methylene-1,1'-azobenzene.



       Example: 35 parts of 3,7-dibroni-5-aniino-8-oxy-1,1-naphtlioehinonimin- (1) are heated to 80 to 900 parts in 300 parts of glacial acetic acid. At this temperature, 23 parts of 1-amino-2'-cx, -: 5'-metal-l-7, 1'-azobenzene are introduced.

   One holds. the temperature for two hours at 80 to 900 and isolates the product. by diluting the mass with water, filtration, washing and drying. The new condensation product colors. Acetate silk and superpolyanide fibers particularly strong, pure green. It dissolves in alcohol in a pure green color, in concentrated sehweefic acid in reddish brown and olive on the addition of formaldehyde.

Claims (1)

-<B>PATENTANSPRUCH:</B> Verfahren zur Herstellung eines neuen Kondensationsproduktes der Naphthochinon- iininreihe, dadurch gekennzeichnet, dass man 3,7 -Dibrom - 5-amino-8-oxy-1,l-naphthoehinon- imin-(1) in Gegenwart eines Lösungsmittels mit 4-Amino-2'-oxy-5'-methyl-1,1'-azobenzol kondensiert. - <B> PATENT CLAIM: </B> Process for the production of a new condensation product of the naphthoquinone-iinine series, characterized in that 3,7-dibromo-5-amino-8-oxy-1, l-naphthoehinone-imine- (1 ) condensed in the presence of a solvent with 4-amino-2'-oxy-5'-methyl-1,1'-azobenzene. Das neue Produkt löst. sich in Alkohol rein grün, in konzentrierter Schwefelsäure rotstiehig braun und oliv auf Zusatz von Formaldehyd. Es soll als Zwisehenprodukt oder als Farbstoff Verwendung finden. The new product solves. pure green in alcohol, reddish brown in concentrated sulfuric acid and olive on the addition of formaldehyde. It should be used as an intermediate product or as a dye.
CH276609D 1949-02-24 1949-02-24 Process for the preparation of a new condensation product of the naphthoquinone imine series. CH276609A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH272831T 1949-02-24
CH276609T 1949-02-24

Publications (1)

Publication Number Publication Date
CH276609A true CH276609A (en) 1951-07-15

Family

ID=25731416

Family Applications (1)

Application Number Title Priority Date Filing Date
CH276609D CH276609A (en) 1949-02-24 1949-02-24 Process for the preparation of a new condensation product of the naphthoquinone imine series.

Country Status (1)

Country Link
CH (1) CH276609A (en)

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