CH185053A - Process for the production of a new azo dye. - Google Patents

Process for the production of a new azo dye.

Info

Publication number
CH185053A
CH185053A CH185053DA CH185053A CH 185053 A CH185053 A CH 185053A CH 185053D A CH185053D A CH 185053DA CH 185053 A CH185053 A CH 185053A
Authority
CH
Switzerland
Prior art keywords
azo dye
production
new
new azo
acid
Prior art date
Application number
Other languages
German (de)
Inventor
Gesellschaft Fuer Chemis Basel
Original Assignee
Chem Ind Basel
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 Chem Ind Basel filed Critical Chem Ind Basel
Publication of CH185053A publication Critical patent/CH185053A/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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Coloring (AREA)

Description

  

  <B>Zusatzpatent</B> zum Hauptpatent Nr. 182720.    Verfahren zur Herstellung eines neuen     Azofarbstoffes.       Es wurde gefunden, dass man einen     Azo-          farbstoff    erhält, wenn man     diazotierten        Ätbyl-          ester    der 2     -Amino    - 3'-     trifluormethyl    -     1,1'-          diphenyläther-4-carbonsäure    mit     2,3-Oxy-          naphthoesäure-2'-methoxyariilid    vereinigt. Der  neue Farbstoff bildet ein rotes, in Wasser  unlösliches Pulver.

   Auf geeigneten Substraten,  wie zum Beispiel Zellulose, hergestellt, färbt  er diese in scharlachroten Tönen mit sehr  guten Echtheitseigenschaften.  



  <I>Beispiel:</I>  32,4 Teile     Äthylester    der 2 -     Amino    -     3'-          trifluO-rmethyl    -1,1'-     diphenyläther    - 4 -     carbon-          säure    werden in üblicher Weise     diazotiert.     Die erhaltene klare     Diazolösung    wird in eine  Lösung, bestehend aus 29,3 Teilen     2,3-Oxy-          naphthoesäure    - 2'-     methoxyanilid,    50 Teilen  30     o/oiger        Natriumhydroxydlösung,    15 Teilen  Natriumkarbonat und 2000 Teilen Wasser  eingetragen.

   Der gebildete     Farbstoff    fällt  sofort aus. Der rote Niederschlag wird fil  triert und getrocknet.    Der hier zur Verwendung gelangende       Äthylester    der     2-Amino-3'-trifluormetbyl-1,1'-          diphenyläther-    4 -     carbonsäure    kann erhalten  werden durch Umsetzen von     1-Chlor-2-nitro-          benzol-4-carbonsäure    mit     m-Trifluormethyl-          phenolnatrium,    Verestern und Reduzieren des  so erhaltenen     Diphenvlätherderivates.  



  <B> Additional patent </B> to main patent No. 182720. Process for the production of a new azo dye. It has been found that an azo dye is obtained if diazotized ethyl esters of 2-amino-3'-trifluoromethyl-1,1'-diphenyl ether-4-carboxylic acid with 2,3-oxynaphthoic acid-2'- methoxyariilid combined. The new dye forms a red powder that is insoluble in water.

   Produced on suitable substrates such as cellulose, for example, he dyes them in scarlet shades with very good fastness properties.



  <I> Example: </I> 32.4 parts of the ethyl ester of 2 - amino - 3'-trifluoromethyl -1,1'-diphenyl ether - 4 - carboxylic acid are diazotized in the usual way. The clear diazo solution obtained is introduced into a solution consisting of 29.3 parts of 2,3-oxynaphthoic acid-2'-methoxyanilide, 50 parts of 30% sodium hydroxide solution, 15 parts of sodium carbonate and 2000 parts of water.

   The dye formed precipitates immediately. The red precipitate is filtered off and dried. The ethyl ester of 2-amino-3'-trifluoromethyl-1,1'-diphenylether-4-carboxylic acid used here can be obtained by reacting 1-chloro-2-nitrobenzene-4-carboxylic acid with m-trifluoromethyl phenol sodium, esterifying and reducing the diphenene ether derivative thus obtained.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen Azofarbstoffes, dadurch gekennzeichnet, dass man diazotierten Äthylester der 2-Amino-3'- trifluormethyl -1,1'- diphenyläther - 4 - car bon - säure mit 2,3-Oxy iaphthoesäure-2'-methoxy- anilid vereinigt. Der neue Farbstoff bildet ein rotes, in Wasser unlösliches Pulver. PATENT CLAIM: Process for the preparation of a new azo dye, characterized in that diazotized ethyl esters of 2-amino-3'-trifluoromethyl -1,1'-diphenyl ether - 4 - carbon - acid with 2,3-oxy iaphthoic acid-2'- methoxy anilide combined. The new dye forms a red powder that is insoluble in water. Auf geeigneten Substraten, wie zum Beispiel Zellu lose, hergestellt, färbt er diese in scharlaeh- roten Tönen mit sehr guten Echtheitseigen schaften. Produced on suitable substrates, such as cellulose, for example, he dyes them in sharp red shades with very good fastness properties.
CH185053D 1935-05-22 1935-05-22 Process for the production of a new azo dye. CH185053A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH182720T 1935-05-22
CH185053T 1935-05-22

Publications (1)

Publication Number Publication Date
CH185053A true CH185053A (en) 1936-06-30

Family

ID=25720778

Family Applications (1)

Application Number Title Priority Date Filing Date
CH185053D CH185053A (en) 1935-05-22 1935-05-22 Process for the production of a new azo dye.

Country Status (1)

Country Link
CH (1) CH185053A (en)

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