CH162640A - Process for the preparation of a monoazo dye. - Google Patents

Process for the preparation of a monoazo dye.

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Publication number
CH162640A
CH162640A CH162640DA CH162640A CH 162640 A CH162640 A CH 162640A CH 162640D A CH162640D A CH 162640DA CH 162640 A CH162640 A CH 162640A
Authority
CH
Switzerland
Prior art keywords
preparation
amino
monoazo dye
dye
dioxypropyl
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 CH162640A publication Critical patent/CH162640A/en

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Description

  

      Verfahren        zur    Darstellung eines     Honoazofarbstoffes.       Im Hauptpatent ist ein Farbstoff beschrie  ben, der erhalten wird durch     Diazotieren    von       2-Amino-4.        6-dinitro-l-oxybenzol    und Kuppeln  der     Diazoverbindung    mit     1-Amino-3-oxyäthyl-          aminobenzol.     



  Einen ähnlichen     Farbstoff    erhält man,  wenn man die genannte     Diazoverbindung    mit  1-     Amino    -<I>3 -</I>     (ss   <I>. r -</I>     dioxypropyl)    -     aminobenzol     kuppelt, das erhalten werden kann durch       Kondensation    von     1.3-Diaminobenzol    mit       Monochlorhydrin,        Epichlorhydrin    oder der  gleichen.  



  <I>Beispiel: -</I>  19,9 Teile     2-Amino-4,6-dinitro-l-oxyben-          zol    werden mit 18 Teilen Salzsäure von 20         B6    und 6,9 Teilen     Natriumnitrit        diazotiert.     Dann lässt man die     Diazoverbindung    in eine  salzsaure Lösung von 18 Teilen     1-Amino-3-          (P.r-dioxypropyl)-aminobenzol    einlaufen, be-    endet die Kupplung durch Zugabe von Na  triumacetat und isoliert in üblicher Weise.

    Der in guter Ausbeute anfallende Farbstoff  löst sich leicht und gibt auf Wolle mit     Me-          tachrombeize    ein     tiefviolettstichiges    Braun  von guter Echtheit. '



      Process for the preparation of a honoazo dye. The main patent describes a dye which is obtained by diazotizing 2-amino-4. 6-dinitro-1-oxybenzene and coupling of the diazo compound with 1-amino-3-oxyäthylaminobenzene.



  A similar dye is obtained if the diazo compound mentioned is coupled with 1-amino - <I> 3 - </I> (ss <I>. R - </I> dioxypropyl) - aminobenzene, which can be obtained by condensation of 1.3-diaminobenzene with monochlorohydrin, epichlorohydrin or the like.



  <I> Example: </I> 19.9 parts of 2-amino-4,6-dinitro-1-oxybenzene are diazotized with 18 parts of hydrochloric acid of 20 B6 and 6.9 parts of sodium nitrite. The diazo compound is then allowed to run into a hydrochloric acid solution of 18 parts of 1-amino-3- (P.r-dioxypropyl) aminobenzene, and the coupling is terminated by adding sodium acetate and isolated in the customary manner.

    The dyestuff obtained in good yield dissolves easily and gives wool with metachrome stain a deep purple-tinged brown of good fastness. '

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines Mono azofarbstoffes, dadurch gekennzeichnet, dass man 2-Amino-4.6-dinitro-l-oxybenzol diazo- tiert und mit 1-Amino-3-(ss-r-dioxypropyl)- aminobenzol kuppelt. Der Farbstoff gibt auf Wolle mit Metachrombeize ein tiefviolett- stichiges Braun von guter Echtheit. PATENT CLAIM: Process for the preparation of a mono azo dye, characterized in that 2-amino-4,6-dinitro-1-oxybenzene is diazo- tated and coupled with 1-amino-3- (ss-r-dioxypropyl) - aminobenzene. The dye gives wool with metachrome stain a deep violet brown of good fastness.
CH162640D 1932-01-09 1932-04-26 Process for the preparation of a monoazo dye. CH162640A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE162640X 1932-01-09
CH160442T 1932-04-26

Publications (1)

Publication Number Publication Date
CH162640A true CH162640A (en) 1933-06-30

Family

ID=25717335

Family Applications (1)

Application Number Title Priority Date Filing Date
CH162640D CH162640A (en) 1932-01-09 1932-04-26 Process for the preparation of a monoazo dye.

Country Status (1)

Country Link
CH (1) CH162640A (en)

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