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CH105849A - Process for the preparation of an azo dye. - Google Patents

Process for the preparation of an azo dye.

Info

Publication number
CH105849A
CH105849A CH105849DA CH105849A CH 105849 A CH105849 A CH 105849A CH 105849D A CH105849D A CH 105849DA CH 105849 A CH105849 A CH 105849A
Authority
CH
Switzerland
Prior art keywords
preparation
azo dye
pyrazolone
methyl
red
Prior art date
Application number
Other languages
German (de)
Inventor
Farbenfabriken Vorm Friedr Co
Original Assignee
Farbenfab Vorm Bayer F & Co
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 Farbenfab Vorm Bayer F & Co filed Critical Farbenfab Vorm Bayer F & Co
Publication of CH105849A publication Critical patent/CH105849A/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
    • C09B35/00—Disazo and polyazo dyes of the type A<-D->B prepared by diazotising and coupling
    • C09B35/02—Disazo dyes
    • C09B35/039—Disazo dyes characterised by the tetrazo component
    • C09B35/08—Disazo dyes characterised by the tetrazo component the tetrazo component being a derivative of biphenyl
    • C09B35/10—Disazo dyes characterised by the tetrazo component the tetrazo component being a derivative of biphenyl from two coupling components of the same type
    • C09B35/18—Disazo dyes characterised by the tetrazo component the tetrazo component being a derivative of biphenyl from two coupling components of the same type from heterocyclic compounds

Landscapes

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

Description

  

  Zusatzpatent zum Hauptpatent     Nr.    100184.    Verfahren zur Darstellung eines     Azofarbstoffes.       Es wurde gefunden,-     dass    man einen gut  ziehenden und gut löslichen     substantiven          Azofarbstoff    erhält, wenn man die 4.     4'-          Diariiitiodipheiiyl-3.3'-dilzarbotisätii-oeiiierseits          mit        8'-sulfo-I-P-Naphtyl-3-methyl-5-pyrazolon     und anderseits mit     1-m-Amiriophenyl-3-methyl-          5-pyrazolon    kombiniert.  



  <I>Beispiel:</I>  <B>272</B> Gewichtsteile     4.4'-Diaminodipheiiyl-          3   <B>.</B>     3'-dikarbonsäure    werden in bekannter Weise  in Wasser mit Nitrit     und    Salzsäure     tetrazo-          tiert.    Darauf stumpft man mit     Natritimacetat     die Mineralsäure ab und giesst 304 Gewichts  teile     8-Stilfo-I-P-Napbtyl-3-methyl-5-pyrazo-          lon,    das in Wasser mit     Natriumacetat    gelöst  ist, hinzu.

   Nach Beendigung der Bildung des  Zwischenproduktes macht man     sodaalkalisch     und fügt<B>189</B> Teile     1-m-Amiiiophenyl-3-metliyl-          5-pyrazolon    in     sodaalkalischer    Lösung hinzu.  Man erwärmt auf 40<B>0</B>     und    nach Beendigung    der Kupplung filtriert man den Farbstoff     ab#     und trocknet.<B>Er</B> stellt ein braunrotes Pulver  dar, das Baumwolle gelbrot     aiifä#rbt    und durch       Nachbehandlung    mit Kupfersalzen ein     wasch-          und    lichtechtes Rotorange liefert.



  Additional patent to main patent no. 100184. Process for the preparation of an azo dye. It has been found that - that one obtains an easily absorbing and readily soluble substantive azo dye if the 4. 4'-diariitiodipheiiyl-3.3'-dilzarbotisätii-oeiiierseits with 8'-sulfo-IP-naphthyl-3-methyl-5-pyrazolone and on the other hand combined with 1-m-amiriophenyl-3-methyl-5-pyrazolone.



  <I> Example: </I> <B> 272 </B> parts by weight of 4,4'-diaminodipheiiyl-3 <B>. </B> 3'-dicarboxylic acid are tetrazotized in a known manner in water with nitrite and hydrochloric acid. The mineral acid is then blunted with sodium acetate and 304 parts by weight of 8-Stilfo-I-P-Napbtyl-3-methyl-5-pyrazolone, which is dissolved in water with sodium acetate, are added.

   After the formation of the intermediate product has ended, it is made alkaline with soda and 189 parts of 1-m-amiiophenyl-3-methyl-5-pyrazolone are added in an alkaline soda solution. The mixture is warmed to 40.0 and after the coupling has ended, the dye is filtered off and dried. It is a brown-red powder that turns cotton yellow-red and, through aftertreatment, with it Copper salts provide a washable and lightfast red-orange.

Claims (1)

PATENTANSPR-UCH: Verfahren zur Darstellung eines Azofarb- stoffes, darin bestehend, dass man die 4. 4'- Diaminodiphenyl-3. 3'-dil#arbonsätire einerseits mit 8'-Stilfo-l-p-iiapbtyl-3-methyl-5-pyrazolon und anderseits mit 1-in-Aminophenyl-3-methyl- 5-pyrazolon kuppelt. Der Farbstoff stellt ein braunrotes Pulver dar, das ungebeizte Baumwolle gelbrot an färbt. Beim Nachkupfern entsteht ein wasch- und lichtechtes Rotorange. PATENT CLAIM: Process for the preparation of an azo dye, consisting in that the 4. 4'-diaminodiphenyl-3. 3'-dil #arbonsätire on the one hand with 8'-stilfo-l-p-iiapbtyl-3-methyl-5-pyrazolone and on the other hand with 1-yn-aminophenyl-3-methyl-5-pyrazolone. The dye is a brown-red powder that turns unstained cotton yellow-red. When re-coppering, a washable and lightfast red-orange is created.
CH105849D 1922-02-13 1923-06-29 Process for the preparation of an azo dye. CH105849A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH100184T 1922-02-13
CH105849T 1923-06-29

Publications (1)

Publication Number Publication Date
CH105849A true CH105849A (en) 1924-07-01

Family

ID=25705719

Family Applications (1)

Application Number Title Priority Date Filing Date
CH105849D CH105849A (en) 1922-02-13 1923-06-29 Process for the preparation of an azo dye.

Country Status (1)

Country Link
CH (1) CH105849A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0529849A1 (en) * 1991-08-09 1993-03-03 Ciba-Geigy Ag Coupling process

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0529849A1 (en) * 1991-08-09 1993-03-03 Ciba-Geigy Ag Coupling process

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