CH273296A - Process for the production of a new dye. - Google Patents

Process for the production of a new dye.

Info

Publication number
CH273296A
CH273296A CH273296DA CH273296A CH 273296 A CH273296 A CH 273296A CH 273296D A CH273296D A CH 273296DA CH 273296 A CH273296 A CH 273296A
Authority
CH
Switzerland
Prior art keywords
new dye
production
dye
parts
yellow solution
Prior art date
Application number
Other languages
German (de)
Inventor
Limited Imperial Ch Industries
Original Assignee
Ici Ltd
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 Ici Ltd filed Critical Ici Ltd
Publication of CH273296A publication Critical patent/CH273296A/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
    • C09B29/00—Monoazo dyes prepared by diazotising and coupling
    • C09B29/34—Monoazo dyes prepared by diazotising and coupling from other coupling components
    • C09B29/36—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds
    • C09B29/3604—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds containing only a nitrogen as heteroatom
    • C09B29/3647—Monoazo 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
    • C09B29/3652—Monoazo 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
    • C09B29/366—Monoazo 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

Landscapes

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

Description

  

  Verfahren zur     Herstellung    eines neuen     Farbstoffes.       Gegenstand der     Erfindung    ist ein Ver  fahren zur     Herstellung    eines neuen Farb  stoffes, indem man diazotierte     5-Sulfoanthra-          nilsäure    mit     1-(p-2'-Chlorpheno.yphenyl)-          3-methyl-5-pyrazolon    kuppelt.  



  Der neue Farbstoff ist     ein    gelbes Pulver,  welches in warmem Wasser unter Bildung  einer     rötlichgelben        Lösung        und    in     konz.     Schwefelsäure unter Bildung einer gelben       Lösung-    löslich ist.  



  <I>Beispiel:</I>  6,01 Teile     1-(p-2'-Chlorphenoxyphenyl)-          3-methyl-5-pyrazolon    werden in 100 Teilen       Wasser,    enthaltend 1 Teil     Natriumhydroxyd     und 5 Teile     Sodaasche,    gelöst.

   4,34 Teile       5-Sulfoanthranilsäure        (2-Amino-5-sulfobenzoe-          säure)    werden     mit    5 Teilen 36     o/oiger    Salz  säure     und    1,4 Teilen     Natriumnitrit        diazotiert     und die erzielte     DiazosLispension    in die     Pyr-          azolonlösung        eintropfen    gelassen, und zwar  innerhalb 10 Minuten bei     1011    C.

   Das Reak  tionsgemisch wird während 6 Stunden ge  rührt und der Farbstoff     abfiltriert    und bei    50  C     getrocknet.    Der neue Farbstoff bildet  ein gelbes Pulver, welches in warmem Was  ser     unter    Bildung einer     rötlichgelben    Lösung  und in     konz.    Schwefelsäure unter Bildung  einer gelben Lösung löslich ist. Der Farbstoff  färbt Wolle nach dem     Chromatverfahren          unter    guter     Ausnützung    des Färbebades in  hellgelben Tönen.

   Die     Färbungen    zeichnen  sich durch hervorragende Echtheitseigen  schaften gegen     Nassbehandlungen        und    Licht  aus.



  Process for the production of a new dye. The invention relates to a process for the production of a new dye by coupling diazotized 5-sulfoanthranilic acid with 1- (p-2'-chloropheno.yphenyl) -3-methyl-5-pyrazolone.



  The new dye is a yellow powder, which in warm water to form a reddish yellow solution and in conc. Sulfuric acid is soluble to form a yellow solution.



  <I> Example: </I> 6.01 parts of 1- (p-2'-chlorophenoxyphenyl) -3-methyl-5-pyrazolone are dissolved in 100 parts of water containing 1 part of sodium hydroxide and 5 parts of soda ash.

   4.34 parts of 5-sulfoanthranilic acid (2-amino-5-sulfobenzoic acid) are diazotized with 5 parts of 36% hydrochloric acid and 1.4 parts of sodium nitrite and the resulting DiazosLispension is allowed to drip into the pyrazolone solution, within 10 minutes at 1011 C.

   The reaction mixture is stirred for 6 hours and the dye is filtered off and dried at 50.degree. The new dye forms a yellow powder, which in warm water to form a reddish yellow solution and in conc. Sulfuric acid is soluble to form a yellow solution. The dye dyes wool according to the chromate process, making good use of the dye bath, in light yellow tones.

   The dyeings are characterized by excellent fastness properties against wet treatments and light.

Claims (1)

PATENTANSPRUCH: . Verfahren zur Herstellung eines neuen Farbstoffes, dadurch gekennzeichnet, dass man diazotierte 5-Sulfoanthranilsäure mit 1- (p - 2'- Chlorphenoxyphenyl) -3-inethyl-5-pyr- azolon kuppelt. Der neue Farbstoff ist ein gelbes Pulver, welches in warmem Wasser unter Bildung einer röthchgelben Lösung iuid in konz. Schwefelsäure unter Bildung einer gelben Lö sung löslich ist. PATENT CLAIM:. Process for the preparation of a new dye, characterized in that diazotized 5-sulfoanthranilic acid is coupled with 1- (p - 2'-chlorophenoxyphenyl) -3-ynethyl-5-pyrazolone. The new dye is a yellow powder, which iuid in warm water to form a reddish-yellow solution in conc. Sulfuric acid is soluble to form a yellow solution.
CH273296D 1947-06-20 1948-06-17 Process for the production of a new dye. CH273296A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB273296X 1947-06-20
CH268843T 1948-06-17

Publications (1)

Publication Number Publication Date
CH273296A true CH273296A (en) 1951-01-31

Family

ID=25731039

Family Applications (1)

Application Number Title Priority Date Filing Date
CH273296D CH273296A (en) 1947-06-20 1948-06-17 Process for the production of a new dye.

Country Status (1)

Country Link
CH (1) CH273296A (en)

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