CH203051A - Process for the preparation of a chromable dye of the triarylmethane series. - Google Patents

Process for the preparation of a chromable dye of the triarylmethane series.

Info

Publication number
CH203051A
CH203051A CH203051DA CH203051A CH 203051 A CH203051 A CH 203051A CH 203051D A CH203051D A CH 203051DA CH 203051 A CH203051 A CH 203051A
Authority
CH
Switzerland
Prior art keywords
dye
preparation
chromable
anhydride
triarylmethane series
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 CH203051A publication Critical patent/CH203051A/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
    • C09B11/00—Diaryl- or thriarylmethane dyes
    • C09B11/04—Diaryl- or thriarylmethane dyes derived from triarylmethanes, i.e. central C-atom is substituted by amino, cyano, alkyl
    • C09B11/10—Amino derivatives of triarylmethanes
    • C09B11/24—Phthaleins containing amino groups ; Phthalanes; Fluoranes; Phthalides; Rhodamine dyes; Phthaleins having heterocyclic aryl rings; Lactone or lactame forms of triarylmethane dyes
    • C09B11/245—Phthaleins having both OH and amino substituent(s) on aryl ring

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  • 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. 198713.    Verfahren zur Darstellung eines     ehromierbaren    Farbstoffes der     Triarylmethanreihe.       Gegenstand dieses Zusatzpatentes     ist    ein  Verfahren zur     Darstellung    eines     ehromier-          baren    Farbstoffes der     Triarylmethanreihe,     welches dadurch gekennzeichnet     ist,    dass man       m-Diäthylaminophenol    mit     3-Oxytrimellith-          sänlre-anhydrid    kondensiert.  



  <I>Beispiel:</I>  4,2 Gewichtsteile     3-Ogytrimellithsäure-          anhydrid:     
EMI0001.0015     
    (darstellbar durch     Bromieren    von     Pseudo-          cumol-5:sulfosäuTe    in konzentriertet     18chwe-          felsäure,    Abspalten der     @Sulfogruppe,    Oxy  dation und Ersatz des Bromatoms gegen die       Hydroxylgruppe)    und 2,2     Gewichtsteile            m-Diäthyl:amiuophenol    werden zirka drei  'Sunden bei     1180-190C    C     unter    Rühren ver  schmolzen.

   Nach beendeter     Reaktion    lässt  man erkalten. Die pulverisierte     Schmelze     wird mit konzentrierter :Salzsäure kalt     ver-          rühTt,        wobei    der Farbstoff in Lösung geht.  Man saugt vom Rückstand (unveränderte       3-Oxytrimellithsäure)    ab und     fällt,den    Farb  stoff     aus    dem salzsauren     Filtrat    mit     Wasser     aus.

   Der     abgesaugte        Farbstoff    wird     in        Bi-          carbonat    oder     )Sodalösung    gelöst     und    zur  Trockne eingedampft.  



  Er färbt -aus saurem Bade die tierische  Faser in sehr     klaren    blaustichig roten Tönen,  welche     nachchromiert    noch     etwas    blau  stichiger werden     und    dann sehr ,gute     Echt-          heitseigenscUaften        besitzen.  



  <B> Additional patent </B> to the main patent No. 198713. Process for the preparation of an honorable dye of the triarylmethane series. The subject of this additional patent is a process for the preparation of an honorable dye of the triarylmethane series, which is characterized in that m-diethylaminophenol is condensed with 3-oxytrimellitic acid anhydride.



  <I> Example: </I> 4.2 parts by weight 3-ogytrimellitic anhydride:
EMI0001.0015
    (Can be prepared by brominating pseudo-cumol-5: sulfo acid in concentrated 18-sulfuric acid, splitting off the @sulfo group, oxidizing and replacing the bromine atom with the hydroxyl group) and 2.2 parts by weight of m-diethyl: amiuophenol are about three hours at 1180 -190C C melted while stirring.

   After the reaction has ended, it is allowed to cool. The pulverized melt is stirred cold with concentrated hydrochloric acid, whereby the dye goes into solution. The residue (unchanged 3-oxytrimellitic acid) is filtered off with suction and the dye is precipitated from the hydrochloric acid filtrate with water.

   The sucked off dye is dissolved in bicarbonate or soda solution and evaporated to dryness.



  It dyes the animal fibers from an acid bath in very clear blue-tinged red tones, which, when chromed, become a little blue-tinged and then have very, good fastness properties.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines chromier- baren Farbstoffes der Triarylmethanreihe, dadurch gekennzeichnet"dass man m-Diäthyl- aminophenol mit 3-Oxytrimellithsäureanhy- drid kondensiert. Der so erhaltene Farbstoff färbt die tie rische Faser aus saurem Bade in sehr klaren blaustichig roten Tönen, welche nachchro- miert noch etwas blaustichiger werden und dann sehr gute Echtheitseigenschaften be sitzen. PATENT CLAIM: Process for the preparation of a chromable dye of the triarylmethane series, characterized in that m-diethylaminophenol is condensed with 3-oxytrimellitic anhydride. The dye obtained in this way dyes the animal fibers from an acid bath in very clear blue-tinged red tones, which after chroming become a little more bluish and then have very good fastness properties. UNTERANSPRüCHE l.. Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man m-Diäthylamino- Phenol mit überschüssigem 3-Oxytrimel- lithsäureanhydrid kondensiert. 2. Verfahren nach Patentanspruch, dadurch gekennzeichnet, da.ss man m-Diäthylamino- phenol mit überschüssigem 3-Oxytrimel- lithsäureanhydrid etwa 3 Stunden bei 180-190'C unter Rühren verschmilzt. SUB-CLAIMS l .. Process according to patent claim, characterized in that m-diethylamino-phenol is condensed with excess 3-oxytrimellitic anhydride. 2. The method according to claim, characterized in that m-diethylaminophenol is fused with excess 3-oxytrimelithic anhydride for about 3 hours at 180-190'C with stirring.
CH203051D 1936-02-26 1937-02-18 Process for the preparation of a chromable dye of the triarylmethane series. CH203051A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE203051X 1936-02-26
CH198713T 1938-12-20

Publications (1)

Publication Number Publication Date
CH203051A true CH203051A (en) 1939-02-15

Family

ID=25723136

Family Applications (1)

Application Number Title Priority Date Filing Date
CH203051D CH203051A (en) 1936-02-26 1937-02-18 Process for the preparation of a chromable dye of the triarylmethane series.

Country Status (1)

Country Link
CH (1) CH203051A (en)

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