CH300793A - Process for the preparation of a disazo dye. - Google Patents

Process for the preparation of a disazo dye.

Info

Publication number
CH300793A
CH300793A CH300793DA CH300793A CH 300793 A CH300793 A CH 300793A CH 300793D A CH300793D A CH 300793DA CH 300793 A CH300793 A CH 300793A
Authority
CH
Switzerland
Prior art keywords
parts
dye
preparation
disazo dye
oxyquinoline
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellschaft Ciba
Original Assignee
Ciba Geigy
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 Ciba Geigy filed Critical Ciba Geigy
Publication of CH300793A publication Critical patent/CH300793A/en

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09BORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B31/00Disazo and polyazo dyes of the type A->B->C, A->B->C->D, or the like, prepared by diazotising and coupling
    • C09B31/02Disazo dyes
    • C09B31/12Disazo dyes from other coupling components "C"
    • C09B31/14Heterocyclic components

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Coloring (AREA)

Description

  

  <B>Zusatzpatent</B>     zLun    Hauptpatent Nr. 298509.         Verfahren    zur     Herstellung    eines     Disazofarbstoffes.       Es wurde gefunden,     dass.    man zu einem       wertvollen        Disazofarbstoff    gelangt, wenn man    eine     Diazoverbindung    des     Aminomonoazofarb-          stoffes    der 'Formel  
EMI0001.0011     
    mit     8-Oxychinolin        kuppelt.     



  Der neue Farbstoff bildet ein     blauschwar-          zes    Pulver, das Baumwolle nach dem ein  oder     zweibadzgen        Nachkupferungsverfahren     in wasch- und lichtechten,     rotstichig    violetten  Tönen färbt.  



  Den     Aminomonoazofarbstoff    der obigen       Formel    erhält man durch Kupplung von     di-          azotiertem'2-Amino-l-oxybenzol        4-carbonsäitre-          phenylamid    mit     2-(4'-Aminophenyl).-amino-5-          oxynaphthalin-7,3'-disulfonsEure.    Die Kupp  lung der     Diazoverbindungen    dieses     Amino-          azofarbstoffes    mit dem     8-Oxychinolin    erfolgt  vorteilhaft in     alkalischem    Medium.  



  <I>Beispiel:</I>       e22,8    Teile     li-Oxy6#aminobenzol.4#carbon-          säurephenylamid    werden unter Zusatz von  6,9 Teilen     Natriumnitrit    und 27 Teilen 30  prozentiger Salzsäure bei     0         @diazotiert,    und  die.     Diazoverbindang        wird:

      mit 41 Teilen 2-         (4'-Aminophenyl)-amino-#5-oxynaphthalin-7,3'-          disulfonsäure,    die als     Natriumsalz    unter 'Zu  satz von     3'0    Teilen     Natriumcarbonat    in  1000 Teilen Wasser gelöst     wurde,        vereinigt.     Nach 15 Stunden wird der gebildete Farb  stoff durch Zusatz. von.     Natriumchlorid    abge  schieden und     filtriert.     



  Der abgeschiedene Farbstoff wird nun in  10 Teilen 30prozentiger     Natriumhydroxyd-          lösung    und 1000 Teilen Wasser gelöst und  unter Zusatz von 6;9 Teilen     Natriumnitrit     und 30 Teilen     30prozentiger        ':Salzsäure    bei 0        dianotiert,    die     Diazoverbindung    eine 'Stunde  gerührt und hernach mit einer Lösung aus  14 Teilen     8-Oxychinolin,    100 Teilen     Wasser     und 12 Teilen     30prozentiger    Salzsäure ver  einigt.

   Durch     Zufliessenlassen    einer Lösung  von 75 Teilen wasserfreiem     Natriumcarbonat     in 250 Teilen Wasser wird das Ganze alka  lisch gestellt und dann 15 Stunden gerührt.  Der abgeschiedene Farbstoff wird     filtriert     und     getrocknet,  



  <B> Additional patent </B> zLun main patent No. 298509. Process for the production of a disazo dye. It has been found that a valuable disazo dye is obtained if a diazo compound of the amino monoazo dye of the formula
EMI0001.0011
    couples with 8-oxyquinoline.



  The new dye forms a blue-black powder which, using the one or two bath post-copper plating process, dyes cotton in washable, lightfast, reddish purple tones.



  The amino monoazo dye of the above formula is obtained by coupling diazo-2-amino-1-oxybenzene-4-carboxylic acid re-phenylamide with 2- (4'-aminophenyl) -amino-5-oxynaphthalene-7,3'-disulfonic acid. The coupling of the diazo compounds of this amino azo dye with the 8-oxyquinoline is advantageously carried out in an alkaline medium.



  <I> Example: </I> e22.8 parts of li-Oxy6 # aminobenzol.4 # carboxylic acid phenylamide are @diazotized at 0 with the addition of 6.9 parts of sodium nitrite and 27 parts of 30 percent hydrochloric acid, and the. Diazo connection will:

      with 41 parts of 2- (4'-aminophenyl) -amino- # 5-oxynaphthalene-7,3'-disulfonic acid, which was dissolved as the sodium salt with the addition of 3'0 parts of sodium carbonate in 1000 parts of water, combined. After 15 hours, the color is formed by addition. from. Sodium chloride separated out and filtered.



  The deposited dye is then dissolved in 10 parts of 30 percent sodium hydroxide solution and 1000 parts of water and dianotized at 0 with the addition of 6; 9 parts of sodium nitrite and 30 parts of 30 percent hydrochloric acid, the diazo compound is stirred for one hour and then with a solution of 14 Parts of 8-oxyquinoline, 100 parts of water and 12 parts of 30 percent hydrochloric acid united ver.

   The whole is made alkaline by flowing in a solution of 75 parts of anhydrous sodium carbonate in 250 parts of water and then stirred for 15 hours. The deposited dye is filtered and dried,

 

Claims (1)

PAT'ENTÄNSP'RUCH Verfahren zur Herstellung eines Disazo- farbstoffes, dadurch gekennzeichnet, dass man eine Diazoverbindung des Aminomono- azofarbstoffes der Formel EMI0002.0007 mit 8-Oxychinolin kuppelt. PAT'ENTÄNSP'RUCH Process for the preparation of a disazo dye, characterized in that a diazo compound of the aminomono azo dye of the formula EMI0002.0007 couples with 8-oxyquinoline. Der, neue Farbstoff bildet ein blauschwar zes Pulver, das Baumwolle nach dem ein- oder zweibadigen Nachkupferungsverfahren in wasch und lichtechten, rotstichig violetten Tönen. färbt. UNTERANSPRUCH Verfahren gemäss: Patentanspruch, dadurch gekennzeichnet, dass man die Kupplung in alkalischem Medium durchführt. The new dye forms a blue-black powder, the cotton after the one- or two-bath post-copper plating process in washable, lightfast, reddish purple tones. colors. SUB-CLAIM Method according to: Patent claim, characterized in that the coupling is carried out in an alkaline medium.
CH300793D 1951-03-08 1951-03-08 Process for the preparation of a disazo dye. CH300793A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH300793T 1951-03-08
CH298509T 1952-01-25

Publications (1)

Publication Number Publication Date
CH300793A true CH300793A (en) 1954-08-15

Family

ID=25733963

Family Applications (1)

Application Number Title Priority Date Filing Date
CH300793D CH300793A (en) 1951-03-08 1951-03-08 Process for the preparation of a disazo dye.

Country Status (1)

Country Link
CH (1) CH300793A (en)

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