CH218811A - Process for the preparation of a monoazo dye. - Google Patents

Process for the preparation of a monoazo dye.

Info

Publication number
CH218811A
CH218811A CH218811DA CH218811A CH 218811 A CH218811 A CH 218811A CH 218811D A CH218811D A CH 218811DA CH 218811 A CH218811 A CH 218811A
Authority
CH
Switzerland
Prior art keywords
amino
preparation
methoxybenzene
monoazo dye
dye
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 CH218811A publication Critical patent/CH218811A/en

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09BORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B29/00Monoazo dyes prepared by diazotising and coupling
    • C09B29/10Monoazo dyes prepared by diazotising and coupling from coupling components containing hydroxy as the only directing group
    • C09B29/18Monoazo dyes prepared by diazotising and coupling from coupling components containing hydroxy as the only directing group ortho-Hydroxy carbonamides
    • C09B29/20Monoazo dyes prepared by diazotising and coupling from coupling components containing hydroxy as the only directing group ortho-Hydroxy carbonamides of the naphthalene series

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

Description

  

  Verfahren zur Herstellung eines     Honoazofarbstoffes.       Gegenstand des vorliegenden Zusatzpa  tentes ist ein Verfahren zur Herstellung eines       Monoazofarbstoffes,    welches dadurch gekenn  zeichnet ist, dass man die     Diazoverbindung     von     1-Amino-4-methoxybenzol-5-(sulfonyl-n-          dibutylamin)    mit     2,3-Oxynaphthoyl-(1'-amino-          4'-methoxybenzol)    kuppelt.  



  <I>Beispiel:</I>  31,4 Gewichtsteile 1-     Amino    - 4     -methoxy-          benzol-5-(sulfonyl-n-dibutylamin)    werden in  der üblichen Weise     diazotiert.    Hierauf ver  setzt man die     Diazolösung    zur Bindung der  überschüssigen Mineralsäure mit Natrium  acetat und rührt sie in eine Lösung von 29,3  Gewichtsteilen 2,3 -     OxynaphthoSTl        -(1'-amino-          4'-methoxybenzol)    in verdünnter Natronlauge  ein.

   Nach Beendigung der Kupplung wird  der entstandene     Farbstoff        abfiltriert,    gut  ausgewaschen und     getrocknet.       Er stellt     ein    rotes Pulver dar, das sich  in     Butylacetat,    Aceton,     Xylol    und andern  organischen     Lösungsmitteln    leicht löst und       Celluloseesterlacke        in    roten Tönen von guter  Lichtechtheit färbt.



  Process for the preparation of a honoazo dye. The subject of the present additional patent is a process for the production of a monoazo dye, which is characterized in that the diazo compound of 1-amino-4-methoxybenzene-5- (sulfonyl-n-dibutylamine) with 2,3-oxynaphthoyl- (1 '-amino-4'-methoxybenzene) couples.



  <I> Example: </I> 31.4 parts by weight of 1- amino-4-methoxy-benzene-5- (sulfonyl-n-dibutylamine) are diazotized in the usual way. The diazo solution is then added to bind the excess mineral acid with sodium acetate and it is stirred into a solution of 29.3 parts by weight of 2,3 - OxynaphthoSTl - (1'-amino-4'-methoxybenzene) in dilute sodium hydroxide solution.

   After the coupling has ended, the resulting dye is filtered off, washed well and dried. It is a red powder that dissolves easily in butyl acetate, acetone, xylene and other organic solvents and colors cellulose ester lacquers in red shades of good lightfastness.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Monoazo- farbstoffes, dadurch gekennzeichnet, dass man die Diazoverbindung von 1-Amino-4-methoxy- benzol - 5 - (sulfonyl - n - dibutylamin) mit 2,3- Oxynaphthoyl -<B>(F-</B> amino - 4'- methoxybenzol) kuppelt. PATENT CLAIM: Process for the production of a monoazo dye, characterized in that the diazo compound of 1-amino-4-methoxybenzene - 5 - (sulfonyl - n - dibutylamine) with 2,3-oxynaphthoyl - <B> (F- </B> amino - 4'-methoxybenzene) couples. Der erhaltene Farbstoff stellt ein rotes Pulver dar, das sich in Butylacetat, Aceton, Xylol und andern organischen Lösungsmitteln leicht löst und Celluloseesterlacke in roten Tönen von guter Lichtechtheit färbt. The dye obtained is a red powder which dissolves easily in butyl acetate, acetone, xylene and other organic solvents and colors cellulose ester lacquers in red shades of good lightfastness.
CH218811D 1938-09-15 1939-09-07 Process for the preparation of a monoazo dye. CH218811A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE218811X 1938-09-15
CH214172T 1939-09-07

Publications (1)

Publication Number Publication Date
CH218811A true CH218811A (en) 1941-12-31

Family

ID=25725542

Family Applications (1)

Application Number Title Priority Date Filing Date
CH218811D CH218811A (en) 1938-09-15 1939-09-07 Process for the preparation of a monoazo dye.

Country Status (1)

Country Link
CH (1) CH218811A (en)

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