CH210512A - 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
CH210512A
CH210512A CH210512DA CH210512A CH 210512 A CH210512 A CH 210512A CH 210512D A CH210512D A CH 210512DA CH 210512 A CH210512 A CH 210512A
Authority
CH
Switzerland
Prior art keywords
dye
chromable
acid
preparation
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 CH210512A publication Critical patent/CH210512A/en

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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)
  • Coloring (AREA)

Description

  

  Zusatzpatent zum Hauptpatent Nr. 198713.    Verfahren zur Herstellung eines     chromierbaren        Farbstoffes    der     Triarylmethanreihe.       Gegenstand dieses     Zusatzpatentes    ist     ein     Verfahren zur Herstellung eines     chromier-          baren    Farbstoffes der     Triarylmethanreihe,     welches dadurch gekennzeichnet ist, dass man       (4'-o-Xylidino-        2'-oxy)        -1-benzoyl-o-oxycarb-          oxy-2-benzoesäure,

      die durch Kondensation  von     o-Xylidino-m-phenol    mit 5-Oxytrimellit-         säureanhydrid    bei     120-130'    C erhältlich  ist, mit     Pyrogallol    kondensiert.  



  <I>Beispiel:</I>  42 Gewichtsteile     (4'-o-Xylidino-2'-oxy)-1-          benzoyl-o-oxycarboxy-2-benzoesäure    von der  Formel:  
EMI0001.0019     
    die durch Kondensation von     o-Xylidino-m-          phenol    mit     5-Oxytrimellitsäureanhydrid    bei  120-130   C erhältlich ist (oder 46 Ge  wichtsteile ihres salzsauren Salzes), und 14    Gewichtsteile     Pyrogallol    werden zusammen  in 360     Gewichtsteilen    Schwefelsäure von  <B>60'</B>     Be    5 Stunden auf     110-120'    C erhitzt.

    Nach dem Erkalten     wird    in     etwa    1000 Ge-           wichtsteile    Wasser gegossen und der rote  Niederschlag abgesaugt. Nach mehrmaligem  Waschen mit Wasser löst man ihn in ver  dünnter     Sodalösung,    filtriert und setzt den  Farbstoff mit verdünnten Säuren in Frei  heit. Man kann ihn nötigenfalls aus Farb  stoff mit verdünntem Alkohol unter Zu  satz von etwas verdünnter Salzsäure um  kristallisieren. Der Farbstoff färbt Wolle  aus saurem Bade     violettrot.    Durch     Nach-          ehromieren    entsteht ein Braun mit guten  Echtheitseigenschaften.



  Additional patent to main patent no. 198713. Process for the production of a chromable dye of the triarylmethane series. The subject of this additional patent is a process for the production of a chromable dye of the triarylmethane series, which is characterized in that (4'-o-xylidino-2'-oxy) -1-benzoyl-o-oxycarboxy-2-benzoic acid ,

      which is obtainable by condensation of o-xylidino-m-phenol with 5-oxytrimellitic anhydride at 120-130 ° C., condensed with pyrogallol.



  <I> Example: </I> 42 parts by weight (4'-o-xylidino-2'-oxy) -1-benzoyl-o-oxycarboxy-2-benzoic acid of the formula:
EMI0001.0019
    which is obtainable by condensation of o-xylidino-m-phenol with 5-oxytrimellitic anhydride at 120-130 C (or 46 parts by weight of its hydrochloric acid salt), and 14 parts by weight of pyrogallol are combined in 360 parts by weight of sulfuric acid of <B> 60 '</ B> Be heated to 110-120 ° C. for 5 hours.

    After cooling, water is poured into about 1000 parts by weight and the red precipitate is sucked off. After washing it several times with water, it is dissolved in dilute soda solution, filtered and the dye is released with dilute acids. If necessary, it can be crystallized from dye with dilute alcohol with the addition of a little dilute hydrochloric acid. The dye dyes wool from acid baths purple-red. Re-honoring produces a brown with good fastness properties.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines ehromier- baren Farbstoffes der Triarylmethanreihe, dadurch gekennzeichnet, dass man (4'-o-Xyli- dino - 2'- oxy) -1- benzoyl - o - oxycarboxy - 2 - benzoesäure, PATENT CLAIM: Process for the production of an honorable dye of the triarylmethane series, characterized in that (4'-o-xylidino - 2'-oxy) -1-benzoyl - o - oxycarboxy - 2 - benzoic acid, die durch Kondensation von o- Xy lidino-m-phenol mit 5-Oxytrimellitsäure- anhydrid bei 120-130' C erhältlich ist, mit Pyrogallol kondensiert. Der so erhältliche Farbstoff färbt die tierische Faser aus saurem Base in violett roten Tönen, die durch Nachchromieren in braune Töne mit guten Echtheitseigenschaf ten übergehen. which is obtainable by condensation of o-xy lidino-m-phenol with 5-oxytrimellitic anhydride at 120-130 ° C., condensed with pyrogallol. The dyestuff obtainable in this way dyes the animal fiber from acid base in violet-red shades, which change into brown shades with good fastness properties when they are chromed. UNTERANSPRUCH: Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man die Kondensation der Benzoylbenzoesäure mit Pyrogallol in Schwefelsäure von 60 Be bei etwa 110 bis 120 C bewirkt. SUBSTANTIAL CLAIM: Process according to patent claim, characterized in that the condensation of the benzoylbenzoic acid with pyrogallol in sulfuric acid of 60 Be at about 110 to 120 ° C is effected.
CH210512D 1937-03-25 1938-03-23 Process for the preparation of a chromable dye of the triarylmethane series. CH210512A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE210512X 1937-03-25
CH198713T 1938-12-20

Publications (1)

Publication Number Publication Date
CH210512A true CH210512A (en) 1940-07-15

Family

ID=25723153

Family Applications (1)

Application Number Title Priority Date Filing Date
CH210512D CH210512A (en) 1937-03-25 1938-03-23 Process for the preparation of a chromable dye of the triarylmethane series.

Country Status (1)

Country Link
CH (1) CH210512A (en)

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