CH145833A - Process for the production of a new azo dye. - Google Patents

Process for the production of a new azo dye.

Info

Publication number
CH145833A
CH145833A CH145833DA CH145833A CH 145833 A CH145833 A CH 145833A CH 145833D A CH145833D A CH 145833DA CH 145833 A CH145833 A CH 145833A
Authority
CH
Switzerland
Prior art keywords
dye
disulfo
dioxy
azo dye
mol
Prior art date
Application number
Other languages
German (de)
Inventor
Gesellschaft Fuer Chemis Basel
Original Assignee
Chem Ind Basel
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 Ind Basel filed Critical Chem Ind Basel
Publication of CH145833A publication Critical patent/CH145833A/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
    • C09B45/00—Complex metal compounds of azo dyes
    • C09B45/02—Preparation from dyes containing in o-position a hydroxy group and in o'-position hydroxy, alkoxy, carboxyl, amino or keto groups
    • C09B45/24—Disazo or polyazo compounds
    • C09B45/28—Disazo or polyazo compounds containing copper
    • 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
    • C09B33/00—Disazo and polyazo dyes of the types A->K<-B, A->B->K<-C, or the like, prepared by diazotising and coupling
    • C09B33/02—Disazo dyes
    • C09B33/12—Disazo dyes in which the coupling component is a heterocyclic compound

Landscapes

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

Description

  

      Zusatzpatent    zum Hauptpatent Nr. 136650.    Verfahren zur Herstellung eines neuen     Azofarbstoües.       Es wurde     gefunden,    dass man einen  neuen Farbstoff erhält, wenn man auf 1     Mol.     des     5,5'-Dioxy-7,7'-disulfo-1,1',2',2-dinaph-          thazins    der Formel  
EMI0001.0007     
    das durch saure Kupplung von     diazotierter          Sulfanilsäure        mit_5,5'-Dioxy-7,7'-disulfo-2,2'-          dinaphthylamin    und- Erwärmen des gebilde  ten Reaktionsproduktes     erhalten    werden  kann,

   2     Mol.        diazotierte        4-Nitro-2-amino-l-          phenol-6-sulfosäure        einwirken    lässt     und    den  erhaltenen Farbstoff mit kupferabgebenden  Mitteln behandelt.  



  Der     erhaltene    Farbstoff ist ein schwar  zes Pulver, das sich in Wasser     mit    rotviolet-  
EMI0001.0021     
  




      Additional patent to main patent no. 136650. Process for the production of a new azo dye. It has been found that a new dye is obtained if one mole. Of the 5,5'-dioxy-7,7'-disulfo-1,1 ', 2', 2-dinaphthazine of the formula
EMI0001.0007
    which can be obtained by the acidic coupling of diazotized sulfanilic acid mit_5,5'-dioxy-7,7'-disulfo-2,2'-dinaphthylamine and heating the reaction product formed,

   2 mol. Diazotized 4-nitro-2-amino-1-phenol-6-sulfonic acid is allowed to act and the dye obtained is treated with copper-donating agents.



  The dye obtained is a black powder that turns red-violet in water
EMI0001.0021

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen Azofarbstoffes, dadurch gekennzeichnet, dass man auf 1 Mol. des 5,5'-Dioxy-7,7'-disulfo- 1,1',2',2-dinaphthazins der Formel EMI0002.0008 das durch saure Kupplung von diazotierter Sulfanilsäure mit 5,5'-Dioxy-7,7'-disulfo-2; Claim: Process for the preparation of a new azo dye, characterized in that 1 mol. Of the 5,5'-dioxy-7,7'-disulfo-1,1 ', 2', 2-dinaphthazine of the formula EMI0002.0008 the acidic coupling of diazotized sulfanilic acid with 5,5'-dioxy-7,7'-disulfo-2; 2'- dinaphthylamin und Erwärmen des gebilde ten Reaktionsproduktes erhalten werden kann,. 2 Mol. diazotierte 4-Nitro-2-amino-l- phenol-6-sulfosäure einwirken lässt und den erhaltenen Farbstoff mit kupferabgebenden Mitteln behandelt. Der erhaltene Farbstoff ist ein schwarzes Pulver, das sich in Wasser mit rotvioletter, in verdünnter Sololösung mit blauvioletter und in konzentrierter Schwefelsäure mit blaugrüner Farbe löst. Er färbt Baumwolle, Wolle und Kunstseide in echten grauen Tönen. 2'-dinaphthylamine and heating of the formed reaction product can be obtained. 2 mol. Diazotized 4-nitro-2-amino-1-phenol-6-sulfonic acid is allowed to act and the dye obtained is treated with copper-donating agents. The dye obtained is a black powder which dissolves in water with a red-violet color, in a dilute solo solution with a blue-violet color and in concentrated sulfuric acid with a blue-green color. He dyes cotton, wool and artificial silk in real gray tones.
CH145833D 1929-06-12 1929-06-12 Process for the production of a new azo dye. CH145833A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH145833T 1929-06-12
CH136650T 1929-11-30

Publications (1)

Publication Number Publication Date
CH145833A true CH145833A (en) 1931-03-15

Family

ID=25712789

Family Applications (1)

Application Number Title Priority Date Filing Date
CH145833D CH145833A (en) 1929-06-12 1929-06-12 Process for the production of a new azo dye.

Country Status (1)

Country Link
CH (1) CH145833A (en)

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