CH201854A - Process for the preparation of a disazo dye. - Google Patents

Process for the preparation of a disazo dye.

Info

Publication number
CH201854A
CH201854A CH201854DA CH201854A CH 201854 A CH201854 A CH 201854A CH 201854D A CH201854D A CH 201854DA CH 201854 A CH201854 A CH 201854A
Authority
CH
Switzerland
Prior art keywords
disazo dye
preparation
dye
parts
disazo
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 CH201854A publication Critical patent/CH201854A/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
    • C09B35/205—Disazo dyes characterised by the tetrazo component the tetrazo component being a derivative of a diaryl- or triaryl- alkane or-alkene
    • C09B35/21—Disazo dyes characterised by the tetrazo component the tetrazo component being a derivative of a diaryl- or triaryl- alkane or-alkene of diarylmethane or triarylmethane

Landscapes

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

Description

  

  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-Isohegylphenol    kuppelt.  



  Wie nun weiter gefunden wurde, erhält  man einen     Disazofarbstoff    von ähnlichen  Eigenschaften, wenn man 1 . 1 - (4'. 4"     -          Diamino    - 3' . 3" -     dimethyldiphenyl)    -     cyclo-          hegan        tetrazotiert    und die     Tetrazoverbin-          dung    mit     p   <I>- a. a. y. y</I> -     Tetramethyl-butyl-          phenol    kuppelt.

      <I>Beispiel:</I>    29,4 Teile 1.1-(4' .     4"-Diamino-3'    .     3"-          dimethyldiphenyl)-cyclohegan    werden nach  Zugabe von 100 Teilen Salzsäure, 12'     B6,     mit 13,8 Teilen     Natriumnitrit    bei 0   tetrazo-         tiert,    filtriert und mit einer     Emulsion        aus     41,6 Teilen p - a . a . y .

       y-Tetramethyl-butyl-          phenol,    16 Teilen     Natriumlhydrogyd,    gelöst  in etwa 500     Teilen    Wasser, und 10     Teilen     eines     Emulgiermittels        vereinigt.    Der Farb  stoff färbt organische Lösungsmittel rein  gelb.



  Process for the preparation 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-isohegylphenol.



  As has now been further found, a disazo dye with similar properties is obtained if 1. 1 - (4 '. 4 "- diamino - 3'. 3" - dimethyldiphenyl) - cycloheegane tetrazotized and the tetrazo compound with p <I> - a. a. y. y </I> - tetramethylbutylphenol couples.

      <I> Example: </I> 29.4 parts of 1.1- (4 '. 4 "-Diamino-3'. 3" - dimethyldiphenyl) -cyclohegan are added after adding 100 parts of hydrochloric acid, 12 'B6, with 13.8 Parts of sodium nitrite tetrazo- ated at 0, filtered and with an emulsion of 41.6 parts p - a. a. y.

       γ-Tetramethylbutylphenol, 16 parts of sodium hydrogen hydroxide, dissolved in about 500 parts of water, and 10 parts of an emulsifier combined. The dye turns organic solvents into a pure yellow.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung .eines Disazo- farbstoffes, dadurch gekennzeichnet, dass man 1 . 1- (4' . 4" -Diamino-3' . 3" - dimethyldiphe- nyl)-cyclohegan tetrazotiert und die Tetrazo- verbindung mit<I>p - a .</I> a <I>. y . y -</I> Tetramethyl- butylphenol kuppelt. Der Farbstoff färbt organische Lösungs mittel in gelben Tönen an. PATENT CLAIM: A method for producing a disazo dye, characterized in that 1. 1- (4 '. 4 "-Diamino-3'. 3" - dimethyldiphenyl) -cyclohegan tetrazotized and the tetrazo compound with <I> p - a. </I> a <I>. y. y - </I> tetramethylbutylphenol couples. The dye stains organic solvents in yellow tones.
CH201854D 1936-03-31 1937-01-22 Process for the preparation of a disazo dye. CH201854A (en)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
DE201854X 1936-03-31
DE201844X 1936-03-31
DE201847X 1936-03-31
DE201848X 1936-03-31
DE201845X 1936-03-31
DE201849X 1936-03-31
DE201846X 1936-03-31
CH198710T 1937-01-22

Publications (1)

Publication Number Publication Date
CH201854A true CH201854A (en) 1938-12-15

Family

ID=27570414

Family Applications (1)

Application Number Title Priority Date Filing Date
CH201854D CH201854A (en) 1936-03-31 1937-01-22 Process for the preparation of a disazo dye.

Country Status (1)

Country Link
CH (1) CH201854A (en)

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