CH185040A - Process for the preparation of an azo dye. - Google Patents

Process for the preparation of an azo dye.

Info

Publication number
CH185040A
CH185040A CH185040DA CH185040A CH 185040 A CH185040 A CH 185040A CH 185040D A CH185040D A CH 185040DA CH 185040 A CH185040 A CH 185040A
Authority
CH
Switzerland
Prior art keywords
preparation
dye
azo dye
aminobenzene
dinitro
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 CH185040A publication Critical patent/CH185040A/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
    • 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
    • C09B29/095—Amino naphthalenes

Landscapes

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

Description

  

  Zusatzpatent zum Hauptpatent     Nr.    168144.    Verfahren zur Darstellung eines     Azofarbstoffes.       Nach dem im Hauptpatent beschriebenen  Verfahren erhält man einen blauen     Acetat-          seidenfarbstoff,    wenn man     diazotiertes          6-Brom-2.4-dinitro-l-aminobenzol    mit     1-          Aminonaphthalin    kuppelt.  



  Wie nun weiter gefunden wurde, erhält  man einen Farbstoff mit ganz ähnlichen  Eigenschaften, wenn man     6-Brom-2.        4-          dinitro-l-aminobenzol        diazotiert    und mit       8-Chlor-1   <B>(1-</B>     Metlioxy-p-,oxypropylamino)-          naphthalin    kuppelt.  



  <I>Beispiel:</I>  <B>26,2</B> Teile     6-Brom-92.        4-dinitro-l-amino-          benzol    werden in der üblichen Weise     diazo-          tiert    und die mineralsäurehaltige     Diazo-          lösung    wird in eine halte Lösung von<B>27</B>    Teilen     8-Chler-l(y-Methoxy-ss-oxypropyl-          amino)-naplitlialin    einlaufen gelassen. Man  stumpft mit     so-viel        Natriumacetat    ab, bis die  Kupplung beendet ist. Der erhaltene Farb  stoff färbt     Acetatseicle    klar blau.



  Additional patent to main patent No. 168144. Process for the preparation of an azo dye. According to the process described in the main patent, a blue acetate silk dye is obtained when diazotized 6-bromo-2,4-dinitro-1-aminobenzene is coupled with 1-aminonaphthalene.



  As has now been found further, a dye with very similar properties is obtained if 6-bromo-2. 4- dinitro-l-aminobenzene diazotized and coupled with 8-chloro-1 <B> (1- </B> Metlioxy-p-, oxypropylamino) - naphthalene.



  <I> Example: </I> <B> 26.2 </B> parts 6-bromo-92. 4-dinitro-l-aminobenzene are diazo- tated in the usual way and the mineral acid-containing diazo solution is poured into a holding solution of <B> 27 </B> parts of 8-chloro-l (y-methoxy-ss- oxypropyl-amino) -naplitlialin allowed to run in. It is blunted with enough sodium acetate until the coupling has ended. The dye obtained gives Acetatseicle a clear blue color.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines Acetat- seide in echten, klar blauen Tönen anfärben den Farbstoffes, dadurch gekennzeichnet, dass man 6-Brom-2. 4-dinitro-l-aminobenzol diazotiert und die Diazoverbindung mit <B>8 -</B> Chlor<B>-</B> l(V <B>-</B> Methoxy <B>- ss -</B> oxypropylamino) - naphthalin kuppelt. PATENT CLAIM: Process for the representation of an acetate silk in real, clear blue tones dye the dye, characterized in that 6-bromo-2. 4-dinitro-l-aminobenzene diazotized and the diazo compound with <B> 8 - </B> chlorine <B> - </B> l (V <B> - </B> methoxy <B> - ss - </ B> oxypropylamino) - naphthalene couples.
CH185040D 1933-04-27 1934-11-21 Process for the preparation of an azo dye. CH185040A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH168144T 1933-04-27
CH185040T 1934-11-21

Publications (1)

Publication Number Publication Date
CH185040A true CH185040A (en) 1936-06-30

Family

ID=25718510

Family Applications (1)

Application Number Title Priority Date Filing Date
CH185040D CH185040A (en) 1933-04-27 1934-11-21 Process for the preparation of an azo dye.

Country Status (1)

Country Link
CH (1) CH185040A (en)

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