CH238464A - Process for the production of a new azo dye. - Google Patents

Process for the production of a new azo dye.

Info

Publication number
CH238464A
CH238464A CH238464DA CH238464A CH 238464 A CH238464 A CH 238464A CH 238464D A CH238464D A CH 238464DA CH 238464 A CH238464 A CH 238464A
Authority
CH
Switzerland
Prior art keywords
dye
production
parts
yellow
pyrazolone
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 CH238464A publication Critical patent/CH238464A/en

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Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09BORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B29/00Monoazo dyes prepared by diazotising and coupling
    • C09B29/34Monoazo dyes prepared by diazotising and coupling from other coupling components
    • C09B29/36Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds
    • C09B29/3604Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds containing only a nitrogen as heteroatom
    • C09B29/3647Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds containing only a nitrogen as heteroatom containing a five-membered ring with two nitrogen atoms as heteroatoms
    • C09B29/3652Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds containing only a nitrogen as heteroatom containing a five-membered ring with two nitrogen atoms as heteroatoms containing a 1,2-diazoles or hydrogenated 1,2-diazoles
    • C09B29/366Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds containing only a nitrogen as heteroatom containing a five-membered ring with two nitrogen atoms as heteroatoms containing a 1,2-diazoles or hydrogenated 1,2-diazoles containing hydroxy-1,2-diazoles, e.g. pyrazolone
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09BORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B62/00Reactive dyes, i.e. dyes which form covalent bonds with the substrates or which polymerise with themselves

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

Description

  

  Verfahren zur     Herstellung        eines    neuen     Azofarbstoffes.       Es wurde gefunden, dass man einen neuen       Azofarbstoff    erhält, wenn man 1     Mol        diazo-          tiertes        1-Aminobenzol-4-ss-ogyäthyl-sulfon.,     1     Mol        1-(2'-Chlor)-phenyl-3-methyl-5-pyrazo-          lon    und 1     Mol        Maleinsäureanhydrid    derart  aufeinander einwirken lässt,

   dass die     Diazo-          verbindung    in     4-Stellung    des     Pyrazolonkernes     eingreift und dass die     Ogygruppe    des     Ogy-          äthylsulfonrestes    zu einem sauren     Malein-          säureester    verestert wird.  



  Der neue Farbstoff ist ein     gelboranges     Pulver, das sich in Wasser klar mit gelber  Farbe löst und     Acetatkunstseide    aus neutra  ler wässeriger Lösung unter Zusatz von Na  triumsulfat in reinen gelben Tönen von vor  züglichen Echtheitseigenschaften färbt.  



       Beispiel:     20,1 Teile     1-Aminobenzol-4-ss-ogyäthyl-          sulfon    werden mit 25 Teilen 30%iger Salz  säure in 50 Teilen Wasser gelöst und bei 5  bis 10  mit 25 Teilen     4-n-Natriumnitritlösung          diazotiert.    Die klare, gelborange     Diazolösung     lässt man bei 5-10  zu einer Lösung von    21 Teilen     1-(2'-Chlor)-phenyl-3-methyl-5-pyr-          azolon,    15 Teilen 30%iger Natronlauge     und     25 Teilen     Natriumcarbonat    in 200 Teilen  Wasser fliessen.

   Man rührt bis zur Beendi  gung der     Farbstoffbildung    bei 10-15 , saugt       dann    den unlöslichen Farbstoff ab, wäscht  mit 200 Teilen Wasser und     trocknet    bei 50  bis 60 .  



  42 Teile des so erhaltenen Farbstoffes  werden bei 60-70  in 200 Teilen     T'oluol    ge  löst und in eine Lösung 12 Teile     Maleinsäure-          anhydrid    eingetragen. Man erwärmt einige  Zeit auf 100-110 , destilliert dann den  grössten Teil des     Lösungsmittels    im Vakuum  ab, lässt erkalten, presst ab und wäscht den  Rückstand mit wenig Alkohol. Den Filter  rückstand löst man mit der     nötigen    Menge       Natriumcarbonat    in 400 Teilen Wasser von       20-30 .    Aus der klaren Lösung wird das       Natriumsalz    des Farbstoffes durch Zugabe  von 50 Teilen     Natriumchlorid    gefällt.

   Man  saugt ab, wäscht mit 10%iger     Natriumchlo-          ridlösung    und trocknet im Vakuum bei 50  bis 55 . Als Lösungsmittel für die Vereste-           rung    können ausser     Toluol    auch andere ge  eignete Lösungsmittel, wie Benzol,     Xylol     usw. oder Eisessig verwendet werden.



  Process for the production of a new azo dye. It has been found that a new azo dye is obtained if 1 mole of diazotized 1-aminobenzene-4-ss-ogyäthyl-sulfon., 1 mole of 1- (2'-chloro) -phenyl-3-methyl-5- pyrazolone and 1 mole of maleic anhydride can act on one another in such a way that

   that the diazo compound intervenes in the 4-position of the pyrazolone nucleus and that the ogy group of the ogy ethylsulfone residue is esterified to an acidic maleic acid ester.



  The new dye is a yellow-orange powder that dissolves in water with a clear yellow color and dyes acetate rayon from neutral aqueous solution with the addition of sodium sulfate in pure yellow shades with excellent fastness properties.



       Example: 20.1 parts of 1-aminobenzene-4-ss-ogyäthylsulfon are dissolved with 25 parts of 30% hydrochloric acid in 50 parts of water and diazotized at 5 to 10 with 25 parts of 4-n-sodium nitrite solution. The clear, yellow-orange diazo solution is added at 5-10 to a solution of 21 parts of 1- (2'-chloro) -phenyl-3-methyl-5-pyrazolone, 15 parts of 30% strength sodium hydroxide solution and 25 parts of sodium carbonate in 200 Share water flow.

   The mixture is stirred until the formation of the dye is at 10-15, then the insoluble dye is filtered off with suction, washed with 200 parts of water and dried at 50 to 60.



  42 parts of the dye thus obtained are dissolved at 60-70 in 200 parts of toluene and 12 parts of maleic anhydride are introduced into a solution. The mixture is heated to 100-110 for some time, then most of the solvent is distilled off in vacuo, left to cool, pressed off and the residue is washed with a little alcohol. The filter residue is dissolved with the necessary amount of sodium carbonate in 400 parts of 20-30 water. The sodium salt of the dye is precipitated from the clear solution by adding 50 parts of sodium chloride.

   It is suctioned off, washed with 10% sodium chloride solution and dried in vacuo at 50 to 55. In addition to toluene, other suitable solvents such as benzene, xylene, etc. or glacial acetic acid can also be used as solvents for the esterification.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen Azofa.rbstoffes, dadurch gekennzeichnet, dass man 1 Mol diazotiertes 1-Aminobenzol-4-ss- oxyäthylsulfon, 1 Mol 1-(2'-Chlor)-phenyl-3- methyl-5-pyrazolon und 1 Mol Maleinsäure- anhydrid derart aufeinander einwirken lässt. PATENT CLAIM: A process for the production of a new azo-dye, characterized in that 1 mol of diazotized 1-aminobenzene-4-ss- oxyethylsulfone, 1 mol of 1- (2'-chloro) -phenyl-3-methyl-5-pyrazolone and 1 mole of maleic anhydride can act on each other in this way. dass die Diazoverbindung in 4-Stellung des Pyrazolonkernes eingreift und dass die Oay- gruppe des Osyäthylsulfonrestes zu einem sauren Maleinsäureester verestert wird. Der neue Farbstoff ist ein gelboranges ]Pulver, das sich in Wasser klar mit gelber Farbe löst und Acetatkunstseide aus neutra ler wässeriger Lösung unter Zusatz von Na triumsulfat in reinen gelben Tönen von vor züglichen Echtheitseigenschaften färbt. that the diazo compound engages in the 4-position of the pyrazolone nucleus and that the Oay group of the Osyäthylsulfonrestes is esterified to an acidic maleic acid ester. The new dye is a yellow-orange powder that dissolves in water with a clear yellow color and dyes acetate rayon from neutral aqueous solution with the addition of sodium sulfate in pure yellow tones with excellent fastness properties.
CH238464D 1943-09-02 1943-09-02 Process for the production of a new azo dye. CH238464A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH236764T 1943-09-02

Publications (1)

Publication Number Publication Date
CH238464A true CH238464A (en) 1945-07-15

Family

ID=4459600

Family Applications (8)

Application Number Title Priority Date Filing Date
CH238463D CH238463A (en) 1943-09-02 1943-09-02 Process for the production of a new azo dye.
CH238462D CH238462A (en) 1943-09-02 1943-09-02 Process for the production of a new azo dye.
CH238460D CH238460A (en) 1943-09-02 1943-09-02 Process for the production of a new azo dye.
CH238461D CH238461A (en) 1943-09-02 1943-09-02 Process for the production of a new azo dye.
CH238465D CH238465A (en) 1943-09-02 1943-09-02 Process for the production of a new azo dye.
CH238464D CH238464A (en) 1943-09-02 1943-09-02 Process for the production of a new azo dye.
CH236764D CH236764A (en) 1943-09-02 1943-09-02 Process for the production of a new azo dye.
CH238466D CH238466A (en) 1943-09-02 1943-09-02 Process for the production of a new azo dye.

Family Applications Before (5)

Application Number Title Priority Date Filing Date
CH238463D CH238463A (en) 1943-09-02 1943-09-02 Process for the production of a new azo dye.
CH238462D CH238462A (en) 1943-09-02 1943-09-02 Process for the production of a new azo dye.
CH238460D CH238460A (en) 1943-09-02 1943-09-02 Process for the production of a new azo dye.
CH238461D CH238461A (en) 1943-09-02 1943-09-02 Process for the production of a new azo dye.
CH238465D CH238465A (en) 1943-09-02 1943-09-02 Process for the production of a new azo dye.

Family Applications After (2)

Application Number Title Priority Date Filing Date
CH236764D CH236764A (en) 1943-09-02 1943-09-02 Process for the production of a new azo dye.
CH238466D CH238466A (en) 1943-09-02 1943-09-02 Process for the production of a new azo dye.

Country Status (1)

Country Link
CH (8) CH238463A (en)

Also Published As

Publication number Publication date
CH238465A (en) 1945-07-15
CH238460A (en) 1945-07-15
CH238461A (en) 1945-07-15
CH236764A (en) 1945-03-15
CH238463A (en) 1945-07-15
CH238462A (en) 1945-07-15
CH238466A (en) 1945-07-15

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