CH174534A - Process for the preparation of a monoazo dye. - Google Patents

Process for the preparation of a monoazo dye.

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Publication number
CH174534A
CH174534A CH174534DA CH174534A CH 174534 A CH174534 A CH 174534A CH 174534D A CH174534D A CH 174534DA CH 174534 A CH174534 A CH 174534A
Authority
CH
Switzerland
Prior art keywords
preparation
dye
monoazo dye
aminobenzene
naphthol
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 CH174534A publication Critical patent/CH174534A/en

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

  Verfahren zur Herstellung eines     3lonoazofarbstoffes.       Vorliegendes Patent bezieht sich auf  ein Verfahren zur Herstellung eines     Mono-          azofarbstoffes,    dadurch gekennzeichnet, dass  man die     Diazoverbindung    von     Cyclohexyl-          acetylamino    - 4 -     aminobenzol    mit     2-Acetyl-          inethyl    -     amino    - 8 -     naphthol    - 6 -     sulfosäure     kuppelt.  



  Der so erhaltene Farbstoff bildet ein  rotes     wasserlösliehes    Pulver und färbt Wolle  in klaren, sehr egalen lichtechten     gelbstzchig-          roten    Tönen.    <I>Beispiel:</I>    23,2 kg     Cyclobexyl-acetylamino-4-amino-          benzol    werden in üblicher Weise     diazotiert.     Die erhaltene     Diazolösung        lässt    man unter       Kühlung    in eine mit überschüssigem Na  triumacetat versetzte     Lösung    von 31 kg         Acetylmethylamino-    8     -naphthol    -6 -     sulf    

      osäure     laufen. Der so erhaltene     Farbstoff    wird iso  liert und getrocknet.



  Process for the preparation of a 3lonoazo dye. The present patent relates to a process for the preparation of a monoazo dye, characterized in that the diazo compound of cyclohexyl acetylamino-4-aminobenzene is coupled with 2-acetyl-ethyl-amino-8-naphthol-6-sulfonic acid.



  The dye thus obtained forms a red, water-soluble powder and dyes wool in clear, very level, lightfast, yellowish-red tones. <I> Example: </I> 23.2 kg of cyclobexyl-acetylamino-4-aminobenzene are diazotized in the usual way. The diazo solution obtained is left with cooling in a solution of 31 kg of acetylmethylamino-8-naphthol -6-sulf to which excess sodium acetate has been added

      acid run. The dye thus obtained is isolated and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Mono azofarbstoffes, dadurch gekennzeichnet, dass man die Diazoverbindung von Cyclohexyl- acetylamino - 4 - aminobenzol mit 2-Acetyl- methyl - amino - 8 - naphthol - 6 - sulfosäure kuppelt. Der so erhaltene Farbstoff bildet ein totes wasserlösliches Pulver und färbt Wolle in klaren, sehr egalen lichtechten gelbstichig- roten Tönen. PATENT CLAIM: Process for the production of a mono azo dye, characterized in that the diazo compound of cyclohexyl acetylamino - 4 - aminobenzene is coupled with 2-acetylmethyl - amino - 8 - naphthol - 6 - sulfonic acid. The dye thus obtained forms a dead water-soluble powder and dyes wool in clear, very level, lightfast, yellowish-red shades.
CH174534D 1932-10-13 1933-09-28 Process for the preparation of a monoazo dye. CH174534A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE174534X 1932-10-13
CH170449T 1933-09-28

Publications (1)

Publication Number Publication Date
CH174534A true CH174534A (en) 1935-01-15

Family

ID=25718925

Family Applications (1)

Application Number Title Priority Date Filing Date
CH174534D CH174534A (en) 1932-10-13 1933-09-28 Process for the preparation of a monoazo dye.

Country Status (1)

Country Link
CH (1) CH174534A (en)

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