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CH218810A - Process for the preparation of a monoazo dye. - Google Patents

Process for the preparation of a monoazo dye.

Info

Publication number
CH218810A
CH218810A CH218810DA CH218810A CH 218810 A CH218810 A CH 218810A CH 218810D A CH218810D A CH 218810DA CH 218810 A CH218810 A CH 218810A
Authority
CH
Switzerland
Prior art keywords
preparation
amino
monoazo dye
dye
oxynaphthoyl
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 CH218810A publication Critical patent/CH218810A/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
    • C09B29/10—Monoazo dyes prepared by diazotising and coupling from coupling components containing hydroxy as the only directing group
    • C09B29/18—Monoazo dyes prepared by diazotising and coupling from coupling components containing hydroxy as the only directing group ortho-Hydroxy carbonamides
    • C09B29/20—Monoazo dyes prepared by diazotising and coupling from coupling components containing hydroxy as the only directing group ortho-Hydroxy carbonamides of the naphthalene series

Landscapes

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

Description

  

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

      <I>Beispiel:</I>  34,4 Gewichtsteile     1-Amino-2,5-dimethoxy-          benzol-4-(sulfonyl-n-dibutylamin)    werden, wie  üblich,     diazotiert.    Die mit     Natriumacetat    auf  Kongoneutralität abgestumpfte     Diazolösung     rührt man in eine Lösung von 29,3 Gewichts  teilen     2,3-Oxynaphthoyl-(1'-amino-4'-methoxy-          benzol)    in verdünnter Natronlauge ein. Der  entstehende     Farbstoff    wird     abfiltriert,    gut  ausgewaschen und getrocknet.  



  Er stellt     ein        bordorotes    Pulver dar, das  in     Butylalkohol,    Essigester, Benzol und an  dern organischen Lösungsmitteln gut löslich    ist und     Celluloseesterlacke,    wie auch Kerzen  und Fette, in     bordoroten    Tönen von guten       Echtheitseigenschaften    färbt.



  Process for the preparation of a nonoazo 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-2,5-dimethoxybenzene-4- (sulfonyl- n-dibutylamine) with 2,3 - oxynaphthoyl- (1'-amino-4'-methoxybenzene) couples.

      <I> Example: </I> 34.4 parts by weight of 1-amino-2,5-dimethoxybenzene-4- (sulfonyl-n-dibutylamine) are diazotized as usual. The diazo solution, truncated to Congo neutrality with sodium acetate, is stirred into a solution of 29.3 parts by weight of 2,3-oxynaphthoyl- (1'-amino-4'-methoxybenzene) in dilute sodium hydroxide solution. The resulting dye is filtered off, washed well and dried.



  It is a red powder that is readily soluble in butyl alcohol, ethyl acetate, benzene and other organic solvents and colors cellulose ester lacquers, as well as candles and fats, in red shades with good fastness properties.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Mono azofarbstoffes, dadurch gekennzeichnet, dass man die Diazoverbindung von 1-Amino-2,5- dimethoxybenzol - 4 - (sulfonyl - n- dibutylamin) mit 2,3 - Oxynaphthoyl . (1'- amino-4'-methoxy- benzol) kuppelt. PATENT CLAIM: A process for the preparation of a mono azo dye, characterized in that the diazo compound of 1-amino-2,5-dimethoxybenzene - 4 - (sulfonyl - n-dibutylamine) with 2,3 - oxynaphthoyl. (1'-amino-4'-methoxybenzene) couples. Der erhaltene Farbstoff stellt ein bordo- rotes Pulver dar, das in Butylalkohol, Essig ester, Benzol und andern organischen Lösungs- mitteln gut löslich ist und Celluloseesterlacke, wie auch Kerzen und Fette, in bordoroten Tönen von guten Echtheitseigenschaften färbt. The dye obtained is a red powder that is readily soluble in butyl alcohol, ethyl acetate, benzene and other organic solvents and colors cellulose ester lacquers, as well as candles and fats, in red shades with good fastness properties.
CH218810D 1938-09-15 1939-09-07 Process for the preparation of a monoazo dye. CH218810A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE218810X 1938-09-15
CH214172T 1939-09-07

Publications (1)

Publication Number Publication Date
CH218810A true CH218810A (en) 1941-12-31

Family

ID=25725541

Family Applications (1)

Application Number Title Priority Date Filing Date
CH218810D CH218810A (en) 1938-09-15 1939-09-07 Process for the preparation of a monoazo dye.

Country Status (1)

Country Link
CH (1) CH218810A (en)

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