CH201850A - Process for the preparation of a disazo dye. - Google Patents

Process for the preparation of a disazo dye.

Info

Publication number
CH201850A
CH201850A CH201850DA CH201850A CH 201850 A CH201850 A CH 201850A CH 201850D A CH201850D A CH 201850DA CH 201850 A CH201850 A CH 201850A
Authority
CH
Switzerland
Prior art keywords
disazo dye
preparation
dye
parts
isohexylphenol
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 CH201850A publication Critical patent/CH201850A/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
    • C09B35/00—Disazo and polyazo dyes of the type A<-D->B prepared by diazotising and coupling
    • C09B35/02—Disazo dyes
    • C09B35/039—Disazo dyes characterised by the tetrazo component
    • C09B35/08—Disazo dyes characterised by the tetrazo component the tetrazo component being a derivative of biphenyl
    • C09B35/10—Disazo dyes characterised by the tetrazo component the tetrazo component being a derivative of biphenyl from two coupling components of the same type
    • C09B35/14—Disazo dyes characterised by the tetrazo component the tetrazo component being a derivative of biphenyl from two coupling components of the same type from hydroxy compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)

Description

  

  <B>Zusatzpatent</B> zum Hauptpatent Nr.<B>198710.</B>    Verfahren zur Herstellung eines     Disazofarbstoffes.       Nach dem im Hauptpatent beschriebenen  Verfahren erhält man einen     Disazofarbstoff,     der sich in organischen Lösungsmitteln mit  bräunlich gelber Farbe löst, wenn man     p-          Aminoazobenzol        diazotiert    und die     Diazover-          bindung.mit        p-Isohexylphenol    kuppelt.  



  Wie nun weiter     gefunden    wurde, erhält  man einen     Disazofarbstoff    von ähnlichen Ei  genschaften, wenn man     4.4'-Diamino-3.        3'-          dimethoxy-diphenyl        tetrazotiert    und die     Te-          trazoverbindung    mit     p-Isohexylphenol    kup  pelt.  



  <I>Beispiel:</I>       Man        tetrazotiert    24,4 Teile 4.     4'-Diamino-          3.3'-dimethoxy-diphenyl    unter Zugabe von  100 Teilen Salzsäure, 12       Be,    mit<B>13,8</B> Tei  len     Natriumnitrit    und     lässt    die     filtrierte    Lö  sung bei 0     11    zu einer Lösung von 35,6     Teilen            p-Isohexylphenol,    16 Teilen     Natriumhydr-          oxyd    und 6 Teilen eines     Emulgiermittels    ein  laufen.

   Der Farbstoff wird in üblicher Weise  aufgearbeitet. Er färbt organische Lösungs  mittel in gelbbraunen Tönen an.



  <B> Additional patent </B> to main patent no. <B> 198710. </B> Process for the production of a disazo dye. The process described in the main patent gives a disazo dye which dissolves in organic solvents with a brownish-yellow color when p-aminoazobenzene is diazotized and the diazo compound is coupled with p-isohexylphenol.



  As has now been found further, a disazo dye of similar properties is obtained if 4.4'-diamino-3. 3'-dimethoxy-diphenyl tetrazotized and the tetrazzo compound with p-isohexylphenol kup pelt.



  <I> Example: </I> 24.4 parts of 4,4'-diamino-3,3'-dimethoxy-diphenyl are tetrazotized with the addition of 100 parts of hydrochloric acid, 12 Be, with <B> 13.8 </B> parts len sodium nitrite and lets the filtered solution run at 0-11 to a solution of 35.6 parts of p-isohexylphenol, 16 parts of sodium hydroxide and 6 parts of an emulsifying agent.

   The dye is worked up in the usual way. It stains organic solvents in yellow-brown tones.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Disazo- farbstoffes, dadurch gekennzeichnet, dass man 4.4'-Diamino-3. 3'-dimethoxy-diphenyl tetrazotiert und die Tetrazoverbindung mit p-Isohexylphenol kuppelt. Der Farbstoff färbt organischen Lösungs mittel in gelbbraunen Tönen an. PATENT CLAIM: Process for the production of a disazo dye, characterized in that 4,4'-diamino-3. 3'-dimethoxy-diphenyl tetrazotized and the tetrazo compound coupled with p-isohexylphenol. The dye stains organic solvents in yellow-brown tones.
CH201850D 1936-03-31 1937-01-22 Process for the preparation of a disazo dye. CH201850A (en)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
DE201849X 1936-03-31
DE201846X 1936-03-31
DE201847X 1936-03-31
DE201848X 1936-03-31
DE201850X 1936-03-31
DE201845X 1936-03-31
DE201844X 1936-03-31
CH198710T 1937-01-22

Publications (1)

Publication Number Publication Date
CH201850A true CH201850A (en) 1938-12-15

Family

ID=27570410

Family Applications (1)

Application Number Title Priority Date Filing Date
CH201850D CH201850A (en) 1936-03-31 1937-01-22 Process for the preparation of a disazo dye.

Country Status (1)

Country Link
CH (1) CH201850A (en)

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