CH118161A - Process for the preparation of a trisazo dye. - Google Patents

Process for the preparation of a trisazo dye.

Info

Publication number
CH118161A
CH118161A CH118161DA CH118161A CH 118161 A CH118161 A CH 118161A CH 118161D A CH118161D A CH 118161DA CH 118161 A CH118161 A CH 118161A
Authority
CH
Switzerland
Prior art keywords
preparation
cleve
dianotized
trisazo dye
dye
Prior art date
Application number
Other languages
German (de)
Inventor
Sandoz Chemische Fabri Vormals
Original Assignee
Chem Fab Vormals 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 Chem Fab Vormals Sandoz filed Critical Chem Fab Vormals Sandoz
Publication of CH118161A publication Critical patent/CH118161A/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
    • C09B31/00—Disazo and polyazo dyes of the type A->B->C, A->B->C->D, or the like, prepared by diazotising and coupling
    • C09B31/16—Trisazo dyes
    • C09B31/22—Trisazo dyes from a coupling component "D" containing directive hydroxyl and amino groups

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

      Zusatzpatent    zum Hauptpatent Nr. 114915.    Verfahren zur Darstellung eines     Trisazofar        bstoffes.       Es     wurde    gefunden, dass man zu     einem     neuen     Trisazofarbstoff    gelangen kann, wenn  man     p-Diazotoluol        ,mit        1,6-Naphthylamin-          sulfosäure        Cleve    kuppelt, das Zwischenpro  dukt weiter     @diazo@tiert,    mit     1;

  6-Naphthyl-          aminsulfosäure        Cleve    kombiniert, erneut di  anotiert und mit     1-Phenylamidonaphthalin-          8-sulfosäure    kuppelt.  



  <I>Beispiel</I>       10,'7    Teile     p-Toluidin    werden mit 6,9  Teilen Nitrit dianotiert, mit 22,3 Teilen     1,6-          Naphthylaminsulfosäure        Cleve    kombiniert,  der entstandene     Monoazofarbstoff    wird mit  6,9 Teilen Nitrit weiter     dianotiert    und mit  22,3 Teilen     1,6-Naphthylaminsulfosäure        Cleve     gekuppelt.

   Der     Disazofarbstoff    wird abge  schieden,     ,mit    6,9 Teilen Nitrit     wieder    di  anotiert und zum Schluss mit einer Lösung    von 32,1 Teilen     1-Phenylamidonaphthalin-8-          sulfosaurem    Natrium kombiniert.  



  Der neue Farbstoff bildet ein dunkel  braunviolettes Pulver und färbt Baumwolle  licht- und waschecht blaugrau.



      Additional patent to the main patent No. 114915. Process for the preparation of a Trisazoar bstoffes. It has been found that a new trisazo dye can be obtained if p-diazotoluene is coupled with 1,6-naphthylamine sulfonic acid Cleve, the intermediate product is further @ diazo @ tiert with 1;

  6-naphthylamine sulfonic acid Cleve combined, di anotated again and coupled with 1-phenylamidonaphthalene-8-sulfonic acid.



  <I> Example </I> 10, '7 parts of p-toluidine are dianotized with 6.9 parts of nitrite, combined with 22.3 parts of 1,6-naphthylamine sulfonic acid Cleve, the resulting monoazo dye is further dianotized with 6.9 parts of nitrite and coupled with 22.3 parts of 1,6-naphthylamine sulfonic acid Cleve.

   The disazo dye is separated out, di anotized again with 6.9 parts of nitrite and finally combined with a solution of 32.1 parts of 1-phenylamidonaphthalene-8-sulfonic acid sodium.



  The new dye forms a dark brown-violet powder and dyes cotton light-fast and washable blue-gray.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines Trisazo- farbstoffes, dadurch gekennzeichnet, dass man p-Diazotoluol mit 1,6-Naph@hylaminsulfo- säure Cleve kuppelt, das Zwischenprodukt weiter dianotiert, mit 1,6-Naphthylaminsulfo- säure Cleve kombiniert, erneut ,dianotiert und mit 1-Phenylamidonaphthalin-8-sulfosäure kuppelt. Der neue Farbstoff bildet ein dunkel braunviolettes Pulver und färbt Baumwolle licht- und waschecht blaugrau. PATENT CLAIM: Process for the preparation of a trisazo dye, characterized in that p-diazotoluene is coupled with 1,6-naphthylaminesulfonic acid Cleve, the intermediate product is further dianotized, combined with 1,6-naphthylaminesulfonic acid Cleve, again, dianotized and couples with 1-phenylamidonaphthalene-8-sulfonic acid. The new dye forms a dark brown-violet powder and dyes cotton light-fast and washable blue-gray.
CH118161D 1925-09-16 1925-09-16 Process for the preparation of a trisazo dye. CH118161A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH118161T 1925-09-16
CH114915T 1926-05-17

Publications (1)

Publication Number Publication Date
CH118161A true CH118161A (en) 1926-12-16

Family

ID=25708407

Family Applications (1)

Application Number Title Priority Date Filing Date
CH118161D CH118161A (en) 1925-09-16 1925-09-16 Process for the preparation of a trisazo dye.

Country Status (1)

Country Link
CH (1) CH118161A (en)

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