CH110110A - Process for the preparation of an azo dye. - Google Patents

Process for the preparation of an azo dye.

Info

Publication number
CH110110A
CH110110A CH110110DA CH110110A CH 110110 A CH110110 A CH 110110A CH 110110D A CH110110D A CH 110110DA CH 110110 A CH110110 A CH 110110A
Authority
CH
Switzerland
Prior art keywords
preparation
azo dye
pyrazolone
dye
molecule
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 CH110110A publication Critical patent/CH110110A/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
    • C09B35/26—Disazo dyes characterised by the tetrazo component the tetrazo component being a derivative of a diaryl urea

Landscapes

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

Description

  

  Verfahren zur Darstellung eines     Äzofarbstof%s.       Es wurde gefunden, dass man durch Kup  peln der     Tetrazoverbindung    von     4.4'-Diamino-          diphenylbarnstoff-3.3'-dikarbonsäure    mit 1 Mo  lekül     1-in-Aininophenyl-3-methyl-5-pyrazolon     und mit 1 Molekül     1-p-Naphtyl-8-sulfosäure-          3-metliy        1-5-pyrazoloi)    zu einem     neuen    Farb  stoff gelangt, der bei einer Nachbehandlung  auf der Faser mit Metallsalzen sehr wasch  und lichtechte     orange    Färbungen liefert.  



       Beispiel:     330 Gewichtsteile     4.4'-Diaminodiplienyl-          harnstoff-3-3'-dikarbonsäure    werden mit 138  Gewichtsteilen     Natriumnitrit    und Salzsäure  wie üblich     tetrazotiert,    darauf gibt man 189  Gewichtsteile     1-m-Aminophenyl-3-metliyl-5-          pyrazolon,    das man in Wasser und Salzsäure  gelöst hat, macht essigsauer, und gibt nach       Beendigung    der Bildung des Zwischenpro  duktes noch eine Lösung von 306 Gewichts  teilen     1-,p-Naphtyl-8'-sulfosiiure-3-niethyl-5-          pyrazolon        hinzu,

      und macht     sodaalkalisch.       Nach Beendigung der Kupplung filtriert man  den     Farbstoff    ab und trocknet. Er stellt ein  braunes Pulver dar, das Baumwolle direkt  rot abfärbt. Durch Nachkupfern erhält man  ein wasch- und lichtechtes Orange.



  Method for the preparation of an azo dye% s. It has been found that by coupling the tetrazo compound of 4.4'-diamino diphenylbarnstoff-3.3'-dicarboxylic acid with 1 Mo lekül 1-in-amino-phenyl-3-methyl-5-pyrazolone and with 1 molecule 1-p-naphthyl 8-sulfonic acid-3-metliy 1-5-pyrazoloi) leads to a new dye which, when treated with metal salts, gives very washable and lightfast orange colors.



       Example: 330 parts by weight of 4,4'-diaminodiplienyl urea-3-3'-dicarboxylic acid are tetrazotized with 138 parts by weight of sodium nitrite and hydrochloric acid as usual, then 189 parts by weight of 1-m-aminophenyl-3-methyl-5-pyrazolone, which is in Has dissolved water and hydrochloric acid, makes acetic acid, and after the formation of the intermediate product, a solution of 306 parts by weight of 1-, p-naphthyl-8'-sulfosiiure-3-niethyl-5-pyrazolone is added,

      and makes soda alkaline. After the coupling has ended, the dye is filtered off and dried. It is a brown powder that directly stains cotton red. After copper plating, you get a washable and lightfast orange.

Claims (1)

<B>PATENTANSPRUCH:</B> Verfahren zur Darstellung eines Azofarb- stoffes, dadurch gekennzeichnet, dass man die Tetrazoverbindung von 4-4'-Diaminodiphenyl- harnstoff-3.3'-dikarbonsäure mit 1 Molekül 1-m-Aminophenyl-3-niethyl-5-pyrazolon und mit 1 Molekül 1-,p-Naphtyl-8-sulfosäure-3- methyl-5-pyrazolon kuppelt. Der Farbstoff ist ein braunes Pulver, das Baumwolle direkt rot färbt. Durch Nach kupfern erhält man ein wasch- und lichtechtes Orange. Claim: Process for the preparation of an azo dye, characterized in that the tetrazo compound of 4-4'-diaminodiphenyl urea-3.3'-dicarboxylic acid is mixed with 1 molecule of 1-m-aminophenyl-3-diethyl -5-pyrazolone and coupled with 1 molecule 1-, p-naphthyl-8-sulfonic acid-3-methyl-5-pyrazolone. The dye is a brown powder that directly dyes cotton red. After coppering you get a washable and lightfast orange.
CH110110D 1923-05-07 1924-04-22 Process for the preparation of an azo dye. CH110110A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE581006X 1923-05-07

Publications (1)

Publication Number Publication Date
CH110110A true CH110110A (en) 1925-05-16

Family

ID=6570959

Family Applications (1)

Application Number Title Priority Date Filing Date
CH110110D CH110110A (en) 1923-05-07 1924-04-22 Process for the preparation of an azo dye.

Country Status (2)

Country Link
CH (1) CH110110A (en)
FR (1) FR581006A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012003593A1 (en) 2010-07-05 2012-01-12 Gevartis Ag Heat shielding means in the form of a film

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012003593A1 (en) 2010-07-05 2012-01-12 Gevartis Ag Heat shielding means in the form of a film

Also Published As

Publication number Publication date
FR581006A (en) 1924-11-21

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