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CH197171A - Process for the preparation of a monoazo dye. - Google Patents

Process for the preparation of a monoazo dye.

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Publication number
CH197171A
CH197171A CH197171DA CH197171A CH 197171 A CH197171 A CH 197171A CH 197171D A CH197171D A CH 197171DA CH 197171 A CH197171 A CH 197171A
Authority
CH
Switzerland
Prior art keywords
preparation
dye
monoazo dye
yellow
aminobenzene
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellsc Farbenindustrie
Original Assignee
Ig Farbenindustrie Ag
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 Ig Farbenindustrie Ag filed Critical Ig Farbenindustrie Ag
Publication of CH197171A publication Critical patent/CH197171A/en

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Description

  

  Verfahren zur Herstellung eines     Monoazofarbstoffes.       Vorliegendes Patent bezieht sich auf     ein     Verfahren zur Herstellung eines     Monoazo-          farbstoffes,    dadurch     gekennzeichnet,    dass man       diazotiertes    1-     (co-Sulfoäthyl-acetylamino)        -4-          aminobenzol    in     sodaalkalischem    Medium mit  1-     (2'-Chlor-5'-sulfophenyl)-        3-methyl-5-pyra-          zolon    kuppelt.  



  Der so erhaltene Farbstoff ist ein gelbes  wasserlösliches Pulver und färbt Wolle in  lichtechten, gut egalisierenden     grünstichig-          gelben    Tönen.  



  <I>Beispiel:</I>  25,8 'feile     1-(ao-Sulfoäthyl-acetylamino)-          4-aminobenzol    werden in der üblichen Weise       diazotiert    und die     Diazolösung    in Gegenwart  von Soda mit 26     Teilen        1-(2'-Chlor-5'-sulfo-          phenyl)    - 3 -     methyl-    5     -pyrazolon    gekuppelt.    Nach beendeter     Kupplung        wird    der gebildete  Farbstoff abgeschieden und getrocknet.



  Process for the preparation of a monoazo dye. The present patent relates to a process for the preparation of a monoazo dye, characterized in that diazotized 1- (co-sulfoethyl-acetylamino) -4- aminobenzene in a soda-alkaline medium with 1- (2'-chloro-5'-sulfophenyl) - 3-methyl-5-pyrazolone couples.



  The dye thus obtained is a yellow, water-soluble powder and dyes wool in lightfast, well-leveling greenish-yellow shades.



  <I> Example: </I> 25.8 'files 1- (ao-sulfoethyl-acetylamino) - 4-aminobenzene are diazotized in the usual way and the diazo solution in the presence of soda with 26 parts 1- (2'-chlorine -5'-sulfophenyl) -3-methyl-5-pyrazolone coupled. After the coupling has ended, the dye formed is deposited and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines illonoazo- farbstoffes, dadurch gekennzeichnet, dass man diazotiertes 1-(co-SuUoäthyl-acetylamino)-4- aminobenzol in sodaalkalischem 141edium mit 1-(2'-Chlor-5'-sulfophenyl) -3-methyl-5-pyra- zolon kuppelt. Der so erhaltene Farbstoff ist ein. gelbes wasserlösliches Pulver und färbt Wolle in lichtechten, gut egalisierenden grünstichig gelben Tönen. Claim: Process for the preparation of an illonoazo dye, characterized in that diazotized 1- (co-SuUoäthyl-acetylamino) -4- aminobenzene in a soda-alkaline medium with 1- (2'-chloro-5'-sulfophenyl) -3-methyl -5-pyra- zolon couples. The dye thus obtained is a. yellow, water-soluble powder and dyes wool in lightfast, well-leveling greenish yellow tones.
CH197171D 1935-08-07 1936-07-30 Process for the preparation of a monoazo dye. CH197171A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE197171X 1935-08-07
CH193619T 1936-07-30

Publications (1)

Publication Number Publication Date
CH197171A true CH197171A (en) 1938-04-15

Family

ID=25722541

Family Applications (1)

Application Number Title Priority Date Filing Date
CH197171D CH197171A (en) 1935-08-07 1936-07-30 Process for the preparation of a monoazo dye.

Country Status (1)

Country Link
CH (1) CH197171A (en)

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