CH296540A - Process for the preparation of a monoazo dye. - Google Patents

Process for the preparation of a monoazo dye.

Info

Publication number
CH296540A
CH296540A CH296540DA CH296540A CH 296540 A CH296540 A CH 296540A CH 296540D A CH296540D A CH 296540DA CH 296540 A CH296540 A CH 296540A
Authority
CH
Switzerland
Prior art keywords
blue
monoazo dye
red
preparation
dye
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 CH296540A publication Critical patent/CH296540A/en

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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
    • C09B29/00—Monoazo dyes prepared by diazotising and coupling
    • C09B29/02—Monoazo dyes prepared by diazotising and coupling from diazotised o-amino-hydroxy compounds
    • 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
    • C09B29/00—Monoazo dyes prepared by diazotising and coupling
    • C09B29/24—Monoazo dyes prepared by diazotising and coupling from coupling components containing both hydroxyl and amino directing groups
    • C09B29/28—Amino naphthols
    • C09B29/30—Amino naphtholsulfonic acid

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

Description

  

  verfahren zur     Herstellung    eines     Monoazofarbstoffes.       Es wurde gefunden, dass man zu einem       wertvollen        Monoazofarbstoff    gelangt, wenn  man dianotiertes     2-Ätliy        1-1-aminobenzol    mit       1-(-1'-Tertiäi-butylbenzoylamino)-8-oxynaph-          thalin-3,6-disulfonsäure    vereinigt.  



  Der neue Farbstoff stellt ein blaurotes       Pulver    dar, das sich in Wasser mit blauroter  Farbe löst und Wolle aus essigsaurem Bade  in reinen     blauroten    Tönen von     guter        Wasc.h-          und    Lichtechtheit färbt.  



  Die dem vorliegenden Verfahren als     Aus-          gangsstoff    dienende     1.-        (4'-Tertiärbutylben-          zoyl    a     niino)        -b-oxynaplithalin    -     3,6-disulf        onsätzrc     kann beispielsweise erhalten werden, indem       wau        1-Aniino-8-oxynaphtlialin-3,

  6-disulfon-          süttre    an der     Aminogruppe        finit    einem     1i-Ter-          tiiii-but.ylbenzoesäurehalogenicl        acyliert.     



       1)ie    Kupplung kann nach an sieh     bekann-          teii        Methoden    in     alkaliseheni,    z. B. in     natrinin-          earbonatlialtigem        Medium,    erfolgen.

      <I>Beispiel:</I>  In eine Lösung von     27    Teilen des     Di-          natrinmsalzes    der 7-(4'-Tertiärbutylbenzoyl-         amino)-8-oxynaphthalin-3,6-disulfonsäure    in       -100    Teilen Wasser, welche mit 200 Teilen       einer        10        %        igen        Natriumcarbonatlösung        ver-          mischt    wurde, tropft man bei 0 bis 5  die auf  übliche     Weise    dargestellte     Diazolöstuig    aus  6,

  2 Teilen     2-Äthyl-1-aminobeiizol.    Es entsteht  ein blattroter Farbstoff, der nach einigen  Stunden     abfiltriert    und durch Lösen in hei  ssem Wasser und partielles     Aussalzen    gegebe  nenfalls gereinigt, wird.



  process for the production of a monoazo dye. It has been found that a valuable monoazo dye is obtained if dianotated 2-Ätliy 1-1-aminobenzene is combined with 1 - (-1'-tert-butylbenzoylamino) -8-oxynaphthalene-3,6-disulfonic acid.



  The new dye is a blue-red powder that dissolves in water with a blue-red color and dyes wool from an acetic acid bath in pure blue-red shades of good fastness to washing and light.



  The 1.- (4'-tert-butylbenzoyl-a niino) -b-oxynaplithalin-3,6-disulfone set serving as the starting material for the present process can be obtained, for example, by adding 1-aniino-8-oxynaphtlialin-3,

  6-disulfon- süttre at the amino group finitely acylated with a 1i-ter- tiiii-butylbenzoic acid halogenicl.



       1) The coupling can be carried out in alkaline conditions according to methods known per se, e.g. B. in natrinin- earbonatlialtigem medium.

      <I> Example: </I> In a solution of 27 parts of the disodium salt of 7- (4'-tert-butylbenzoyl-amino) -8-oxynaphthalene-3,6-disulfonic acid in -100 parts of water, which with 200 parts a 10% sodium carbonate solution was mixed, at 0 to 5 the diazole solution prepared in the usual way from 6 is added dropwise,

  2 parts of 2-ethyl-1-aminobeiizole. A leaf-red dye is formed, which is filtered off after a few hours and, if necessary, purified by dissolving it in hot water and partially salting out.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Monoazo- farbstoffes, dadurch gekennzeichnet, dass man dianotiertes ?-@1thy1-l-aminobenzol mit 1-(4'- Tert.iä.rbutylbenzoylamino) - 8-oxynaphthalin- 3,6-disulfonsäure vereinigt. Der neue Farbstoff stellt ein blaurotes Pulver dar, das sieh in Wasser mit blauroter Farbe löst und Wolle aus essigsaurem Bade in reinen blauroten Tönen von guter Wasch- und Liehtechtheit färbt. PATENT CLAIM: Process for the production of a monoazo dye, characterized in that dianotated? - @ 1thy1-l-aminobenzene is combined with 1- (4'-Tert.iä.rbutylbenzoylamino) - 8-oxynaphthalene-3,6-disulfonic acid. The new dye is a blue-red powder that dissolves in water with a blue-red color and dyes wool from an acetic acid bath in pure blue-red shades that are fast to washing and lightning.
CH296540D 1950-11-09 1950-11-09 Process for the preparation of a monoazo dye. CH296540A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH296540T 1950-11-09
CH293115T 1951-10-16

Publications (1)

Publication Number Publication Date
CH296540A true CH296540A (en) 1954-02-15

Family

ID=25733331

Family Applications (1)

Application Number Title Priority Date Filing Date
CH296540D CH296540A (en) 1950-11-09 1950-11-09 Process for the preparation of a monoazo dye.

Country Status (1)

Country Link
CH (1) CH296540A (en)

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