CH188208A - Process for the preparation of an azo dye. - Google Patents

Process for the preparation of an azo dye.

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Publication number
CH188208A
CH188208A CH188208DA CH188208A CH 188208 A CH188208 A CH 188208A CH 188208D A CH188208D A CH 188208DA CH 188208 A CH188208 A CH 188208A
Authority
CH
Switzerland
Prior art keywords
azo dye
amino
preparation
condensation
dye
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellsc Farbenindustrie
Original Assignee
Ig Farbenindustrie 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
Application filed by Ig Farbenindustrie Ag filed Critical Ig Farbenindustrie Ag
Publication of CH188208A publication Critical patent/CH188208A/en

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Description

  

  Verfahren zur Herstellung eines     Azofarbstoffes.       Gemäss dem im     Hauptpatent        besehrie-          benen    Verfahren erhält man einen in     organi-          sehen        Lösungsmitteln    gut löslichen     Azofarb-          stoff,        wenn    man als     Diazokomponente        ein          Aminobutylbenzolgemisch    vom Kp. 14 115       his    1.44' verwendet, welches o-, p- und m  .lmino-sec.-butylbenzol enthält.  



  Wie nun weiter gefunden wurde, erhält  man einen in organischen Lösungsmitteln       el)enfalls    gut löslichen     Azofarbstoff,    wenn       man    ein     Amino-sec.-butylbenzolgemisch,    wie       es    durch Kondensation von     prim.-Butylchlo-          rift    mit Benzol bei<B>60'</B> C in Gegenwart  von Aluminiumchlorid,     Nitrierung    des Kon  densationsproduktes und Reduktion der Ni  <B>l</B>     rogruppe    erhältlich ist,     diazotiert,

      die     Diazo-          verbindung    mit 3 -     Amino    - 4 -     methoxy        -1-me-          tlioxy-l-methylbenzol    kuppelt, die erhaltene       Aminoazoverbindung    weiter     diazotiert    und  schliesslich mit 2.     3-Oxynaplithoesäure-n-bu-          tylamid    vereinigt.

      <I>Beispiel:</I>  Eine Lösung von 14,9 Teilen eines     Amino-          sec.-butyibenzolgemisches    vom Kp. 14 115  bis 144',     wie    es durch Kondensation von       prim.-Butylchlorid        mit    Benzol bei<B>60'</B> C in  Gegenwart von     Aluminiumchlorid,        Nitrie-          rung    des Kondensationsproduktes und Re  duktion der Nitrogruppe erhältlich ist, wird       diazotiert,

      mit     3-Amino-4-methoxy-l-metl-lyl-          benzol    gekuppelt und durch Zugabe von  Salzsäure und     Natriumnitrit    weiter     diazo-          tiert.    Die     Diazolösung    lässt man bei 0 bis 5    in eine Lösung von 24,3 Teilen     2.3-Oxy-          naphthoesäure-n-butylamid    in 10 Teilen Ätz  natron und 300 Teilen Wasser einlaufen. Der  Farbstoff wird wie üblich aufgearbeitet und  löst sich mit violetter Farbe in organischen  Lösungsmitteln.



  Process for the preparation of an azo dye. According to the process described in the main patent, an azo dye which is readily soluble in organic solvents is obtained if an aminobutylbenzene mixture of bp. 14 115 to 1.44 'is used as the diazo component, which contains o-, p- and m Contains.-butylbenzene.



  As has now also been found, an azo dye which is also readily soluble in organic solvents is obtained if an amino-sec.-butylbenzene mixture, as is achieved by condensation of primary-butylchloride with benzene at <B> 60 '</ B> C is obtainable in the presence of aluminum chloride, nitration of the condensation product and reduction of the Ni <B> l </B> ro group, diazotized,

      the diazo compound is coupled with 3-amino-4-methoxy-1-methoxy-1-methylbenzene, the aminoazo compound obtained is further diazotized and finally combined with 2, 3-oxynaplithoic acid-n-butylamide.

      <I> Example: </I> A solution of 14.9 parts of an amino-sec.-butyibenzene mixture with a boiling point of 14 115 to 144 ', as is achieved by condensation of primary butyl chloride with benzene at <B> 60' < / B> C is obtainable in the presence of aluminum chloride, nitration of the condensation product and reduction of the nitro group, is diazotized,

      coupled with 3-amino-4-methoxy-1-metal-lylbenzene and further diazotized by adding hydrochloric acid and sodium nitrite. The diazo solution is allowed to run at 0 to 5 into a solution of 24.3 parts of 2,3-oxynaphthoic acid n-butylamide in 10 parts of caustic soda and 300 parts of water. The dye is worked up as usual and dissolves in organic solvents with a violet color.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Azo- farbstoffes, dadurch gekennzeichnet, dass man ein Amino-sec.-bixtylbenzolgemisch vom Kp. PATENT CLAIM: A process for the production of an azo dye, characterized in that an amino-sec-bixtylbenzene mixture of bp. 14 11,5 bis 144', wie es durch Konden sation von prim.-Butylchlorid mit Benzol bei <B>60 '</B> C in Gegenwart von Aluminiumchlorid, Nitrierung des Kondensationsproduktes und Reduktion der Nitrogruppe erhältlich ist, di- azotiert, die Diazoverbindung mit 3-Amino- 4-methoxy-l-methylbenzol kuppelt, die erhal- tene Aminoazoverbindung weiter diazotiert und schliesslich mit '2. 14 11.5 to 144 ', as obtainable by condensation of primary butyl chloride with benzene at <B> 60' </B> C in the presence of aluminum chloride, nitration of the condensation product and reduction of the nitro group, diazoated, the diazo compound is coupled with 3-amino-4-methoxy-1-methylbenzene, the aminoazo compound obtained is further diazotized and finally with '2. 3-Oxynaphthoesäure- n-butylamid kuppelt. Der Farbstoff löst sich mit violetter Farbe in organischen Lösungsmitteln. 3-Oxynaphthoic acid n-butylamide couples. The dye dissolves in organic solvents with a purple color.
CH188208D 1934-05-26 1935-04-16 Process for the preparation of an azo dye. CH188208A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE188208X 1934-05-26
CH184011T 1935-04-16

Publications (1)

Publication Number Publication Date
CH188208A true CH188208A (en) 1936-12-15

Family

ID=25720949

Family Applications (1)

Application Number Title Priority Date Filing Date
CH188208D CH188208A (en) 1934-05-26 1935-04-16 Process for the preparation of an azo dye.

Country Status (1)

Country Link
CH (1) CH188208A (en)

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