CH302808A - Process for the preparation of a monoazo dye. - Google Patents

Process for the preparation of a monoazo dye.

Info

Publication number
CH302808A
CH302808A CH302808DA CH302808A CH 302808 A CH302808 A CH 302808A CH 302808D A CH302808D A CH 302808DA CH 302808 A CH302808 A CH 302808A
Authority
CH
Switzerland
Prior art keywords
monoazo dye
parts
preparation
monoazo
dye
Prior art date
Application number
Other languages
German (de)
Inventor
Ag Sandoz
Original Assignee
Ag Sandoz
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 Ag Sandoz filed Critical Ag Sandoz
Publication of CH302808A publication Critical patent/CH302808A/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
    • C09B29/06—Monoazo dyes prepared by diazotising and coupling from coupling components containing amino as the only directing group
    • C09B29/08—Amino benzenes

Landscapes

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

Description

  

  Verfahren zur     Herstellung    eines     Monoazofarbstoffes.            Gegenstand    des vorliegenden Patentes ist  ein Verfahren zur Herstellung eines     Monoazo-          farbstoffes,    das dadurch     gekennzeichnet        ist,          class    man 1     Mol        diazotiertes        1-Amino-2,4-di-          (methylstilfonyl)-benzol    mit 1     Mol        N-Oxäthyl-          N-cyanäthylaminobenzol        kuppelt.     



  Der so erhaltene     Monoazofarbstoff    ist neu  und eignet sich zum Färben von Lacken,       Acetatkunstseide    und     synthetischen    Polyamid  und Polyesterfasern.  



  Im nachfolgenden Beispiel bedeuten. die  Teile Gewichtsteile.  



  <I>Beispiel:</I>  6,2 Teile     1-Amino-2,4-di-(methylsulfonyl)-          benzol    werden in 6,3 Teilen konzentrierter       Salzsäure    und 10 Teilen Wasser längere Zeit  angerührt und hierauf in Gegenwart von 20  Teilen Eis mit 1,75 Teilen     Natriumnitrit    di  anotiert. Die erhaltene Suspension wird mit    einer     Lösung    von 5 Teilen     N-Oxäthyl-N-cyan-          äthylaminobenzol    in 50 Teilen Wasser, 5 Teilen  konzentrierter Salzsäure und 50 Teilen Eis       vereinigt.    Der gebildete Farbstoff     wird    ab  filtriert, säurefrei gewaschen und getrocknet.  



  Der neue     Monoazofarbstoff    färbt, in übli  cher Weise     dispergiert,        Acetatkunstseide    leuch  tend orange mit hervorragender Licht-, Wasch-,  Gas     fume-    und     Sublimierechtheit.  



  Process for the preparation of a monoazo dye. The present patent relates to a process for the preparation of a monoazo dye, which is characterized in that 1 mol of diazotized 1-amino-2,4-di (methylstilfonyl) benzene is coupled with 1 mol of N-oxethyl-N-cyanoethylaminobenzene .



  The monoazo dye obtained in this way is new and is suitable for dyeing lacquers, acetate rayon and synthetic polyamide and polyester fibers.



  In the example below, mean. the parts are parts by weight.



  <I> Example: </I> 6.2 parts of 1-amino-2,4-di- (methylsulfonyl) benzene are stirred in 6.3 parts of concentrated hydrochloric acid and 10 parts of water for a long time and then in the presence of 20 parts Ice with 1.75 parts of sodium nitrite di anotiert. The suspension obtained is combined with a solution of 5 parts of N-oxethyl-N-cyano-ethylaminobenzene in 50 parts of water, 5 parts of concentrated hydrochloric acid and 50 parts of ice. The dye formed is filtered off, washed free of acid and dried.



  The new monoazo dye, when dispersed in the usual way, dyes acetate artificial silk bright orange with excellent fastness to light, washing, gas fume and sublimation.

Claims (1)

PATENTANSPRUCH Verfahren zur Herstellung eines Monoazo- farbstoffes, dadurch gekennzeichnet, dass man 1 yIol diazotiertes 1-Amino-2,4-di-(methylsul- fonyl)-benzolmitl Mo1N-Oxäthyl-N-cyanäthyl- aminobenzol kuppelt. PATENT CLAIM Process for the production of a monoazo dye, characterized in that 1 yol of diazotized 1-amino-2,4-di- (methylsulfonyl) -benzene is coupled with Mo1N-oxethyl-N-cyanoethyl-aminobenzene. Der neue Monoazofarbatoff färbt, in übli cher Weise dispergiert, Acetatkunstseide leuch tend orange mit hervorragender Licht-, Wasch-, Gas fume- und Sublimierechtheit. The new monoazo carbate dyes, dispersed in the usual way, acetate rayon bright orange with excellent light, washing, gas fume and sublimation fastness.
CH302808D 1951-09-07 1951-09-07 Process for the preparation of a monoazo dye. CH302808A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH302808T 1951-09-07
CH297843T 1951-09-07

Publications (1)

Publication Number Publication Date
CH302808A true CH302808A (en) 1954-10-31

Family

ID=25733881

Family Applications (1)

Application Number Title Priority Date Filing Date
CH302808D CH302808A (en) 1951-09-07 1951-09-07 Process for the preparation of a monoazo dye.

Country Status (1)

Country Link
CH (1) CH302808A (en)

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