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CH226850A - Process for the preparation of a monoazo dye. - Google Patents

Process for the preparation of a monoazo dye.

Info

Publication number
CH226850A
CH226850A CH226850DA CH226850A CH 226850 A CH226850 A CH 226850A CH 226850D A CH226850D A CH 226850DA CH 226850 A CH226850 A CH 226850A
Authority
CH
Switzerland
Prior art keywords
preparation
monoazo dye
dye
amino
ogynaphthalene
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 CH226850A publication Critical patent/CH226850A/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
    • C09B62/00—Reactive dyes, i.e. dyes which form covalent bonds with the substrates or which polymerise with themselves
    • 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
    • C09B62/00—Reactive dyes, i.e. dyes which form covalent bonds with the substrates or which polymerise with themselves
    • C09B62/44—Reactive dyes, i.e. dyes which form covalent bonds with the substrates or which polymerise with themselves with the reactive group not directly attached to a heterocyclic ring
    • C09B62/62—Reactive dyes, i.e. dyes which form covalent bonds with the substrates or which polymerise with themselves with the reactive group not directly attached to a heterocyclic ring the reactive group being an ethylenimino or N—acylated ethylenimino group or a —CO—NH—CH2—CH2—X group, wherein X is a halogen atom, a quaternary ammonium group or O—acyl and acyl is derived from an organic or inorganic acid, or a beta—substituted ethylamine group
    • C09B62/66—Azo dyes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Coloring (AREA)

Description

  

  Verfahren zur     Herstellung    eines     3lonoazofarbstoffes.            Gegenstand    vorliegenden     Patentes    ist ein  Verfahren zur     Herstellung    eines     Monoazo-          farbstaffes.        Das        Verfahren    ist dadurch ge  kennzeichnet,     @dass    man     diazotiertes        1-Amino-          benzol-2,5-idichlor-4-sulf-ss-chloräthylamid    in  saurem     Mittel    mit     2-Amino-8-ogynaphthalin-          6,

  sulfonsäure    kuppelt.  



  Der neue Farbstoff ist ein     wasserlösliches     dunkles Pulver und färbt Wolle in licht- und  waschechten     Bordotönen.     



       Beispiel:     30,3     Gewichtsteile        1-Aminobenzol-2,5-,di-          chlor-4-sulf-ss-chloräthylamid,    dargestellt aus       1-Amino-2,5-dichlor-4-sulfochlorid    und     ss-          Chloräthylamin,    werden in Eisessig bei Ge  genwart von Salzsäure mit 6,9 Gewichtsteilen       Natriumnitrit        diazotiert.    Die     Diazolösung     lässt     man    dann in eine     congoviolette    kalte       wässrige        Ans@chlämmung    von 23,

  9     Gewichts-          teilen        2-Amino-8-ogynaphthalin.6-sulfonsäure            einlaufen.    Ist die     Kupplung    beendet, so       stumpft    man     die    überschüssige freie     Mineral-          säure        mit        Natriumacetatlösung    ab und arbei  tet -den Farbstoff auf.

   Er     stellt    ein     wasser-          lö:sliches        dunkles        Pulver,dar    und färbt Wolle       in.        gleichmässigen    wasch- und sehr     lichtechten          Bordotönen.  



  Process for the preparation of a 3lonoazo dye. The present patent relates to a process for the production of a monoazo dye. The process is characterized in that diazotized 1-amino-benzene-2,5-idichloro-4-sulf-ss-chloroethylamide in an acidic medium with 2-amino-8-ogynaphthalene-6,

  sulfonic acid couples.



  The new dye is a water-soluble, dark powder and dyes wool in lightfast and washfast Bordo tones.



       Example: 30.3 parts by weight of 1-aminobenzene-2,5-, dichloro-4-sulf-ß-chloroethylamide, prepared from 1-amino-2,5-dichloro-4-sulfochloride and ß-chloroethylamine, are in glacial acetic acid in the presence of hydrochloric acid, diazotized with 6.9 parts by weight of sodium nitrite. The diazo solution is then left in a congoviolet, cold, aqueous slurry of 23,

  9 parts by weight of 2-amino-8-ogynaphthalene.6-sulfonic acid are poured in. When the coupling is complete, the excess free mineral acid is blunted with sodium acetate solution and the dye is worked up.

   It is a water-soluble, dark powder and dyes wool in evenly washable and very lightfast Bordo tones.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Mono- azofarbstoffes,dadurch gekennzeichnet,.,dass man diazotiertes 1-Aminobenzol-2,5-dichlor- 4-sulf-ss-chloräthylamid in saurem Mittel mit 2-Amino-8-ogynaphthalin-6-sulfonsäure kup pelt. PATENT CLAIM: Process for the preparation of a monoazo dye, characterized in that diazotized 1-aminobenzene-2,5-dichloro-4-sulf-ß-chloroethylamide in an acidic medium with 2-amino-8-ogynaphthalene-6-sulfonic acid coupling. Der neue Farbstoff ist ein, wasserlösliches dunkles Pulver und färbt Wolle in licht- und waschechten Bordotönen. The new dye is a water-soluble dark powder and dyes wool in light- and wash-fast Bordeaux tones.
CH226850D 1940-04-18 1941-08-26 Process for the preparation of a monoazo dye. CH226850A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE180440X 1940-04-18
CH225364T 1941-08-26

Publications (1)

Publication Number Publication Date
CH226850A true CH226850A (en) 1943-04-30

Family

ID=25726866

Family Applications (4)

Application Number Title Priority Date Filing Date
CH226850D CH226850A (en) 1940-04-18 1941-08-26 Process for the preparation of a monoazo dye.
CH226849D CH226849A (en) 1940-04-18 1941-08-26 Process for the preparation of a monoazo dye.
CH226848D CH226848A (en) 1940-04-18 1941-08-26 Process for the preparation of a monoazo dye.
CH226847D CH226847A (en) 1940-04-18 1941-08-26 Process for the preparation of a monoazo dye.

Family Applications After (3)

Application Number Title Priority Date Filing Date
CH226849D CH226849A (en) 1940-04-18 1941-08-26 Process for the preparation of a monoazo dye.
CH226848D CH226848A (en) 1940-04-18 1941-08-26 Process for the preparation of a monoazo dye.
CH226847D CH226847A (en) 1940-04-18 1941-08-26 Process for the preparation of a monoazo dye.

Country Status (1)

Country Link
CH (4) CH226850A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3154533A (en) * 1957-12-18 1964-10-27 Basf Ag New azo dyestuffs

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3154533A (en) * 1957-12-18 1964-10-27 Basf Ag New azo dyestuffs

Also Published As

Publication number Publication date
CH226847A (en) 1943-04-30
CH226848A (en) 1943-04-30
CH226849A (en) 1943-04-30

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