CH210524A - Process for the production of a chromating dye of the triphenylmethane series. - Google Patents

Process for the production of a chromating dye of the triphenylmethane series.

Info

Publication number
CH210524A
CH210524A CH210524DA CH210524A CH 210524 A CH210524 A CH 210524A CH 210524D A CH210524D A CH 210524DA CH 210524 A CH210524 A CH 210524A
Authority
CH
Switzerland
Prior art keywords
dye
chromating
triphenylmethane
production
methoxybenzene
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 CH210524A publication Critical patent/CH210524A/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
    • C09B11/22—Amino derivatives of triarylmethanes containing OH groups bound to an aryl nucleus and their ethers and esters

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

  <B>Zusatzpatent</B> zum Hauptpatent Nr. 205170.    Verfahren zur Herstellung eines     Chr        omier        ungsfarbstoffes    der     Triphenylmethanr        eihe.       Gegenstand dieses Zusatzpatentes ist ein  Verfahren zur Herstellung eines     Ohromie-          rungsfarbstoffes    der     Triphenylmethanreihe,     welches dadurch gekennzeichnet ist,

   dass man  den durch Kondensation von 1     Mol        4-Chlor-          benzaldehyd    mit 2     Mol        1-Oxy-5-methylben-          zol-2-carbonsäure    und nachfolgende Oxyda  tion erhältlichen     Triphenylmethanfarbstoff     mit     1-Methylamino-4-methoxybenzol    umsetzt.

    <I>Beispiel:</I>  Der durch Kondensation von 1     Mol        4-          Chlorbenzaldehyd    mit 2     Mol        1-Oxy-5-methyl-          benzol-2-carbonsäure        (m-Kresotinsäure)    und  nachfolgende Oxydation erhaltene     Farbstoff          (vergl.        deutsche    Patentschrift 252287, Bei  spiel, Absatz 2) wird in Form seiner freien  Säure mit überschüssigem     1-Methylamino-4-          methoxybenzol    bei Gegenwart von Wasser  mehrere Stunden bei etwa<B>95-1000</B> C ver  schmolzen,

   bis die anfangs dünnflüssige  Schmelze zu einem im Wasser verteilten  Pulver zerfallen ist. Wird das überschüssige       1-Methylamino-4-methoxybenzol    durch Aus  rühren mit verdünnter Salzsäure entfernt,    so erhält man einen     Farbstoff,    der Wolle       nachchromiert    in lebhaften blauen Tönen  färbt.



  <B> Additional patent </B> to main patent no. 205170. Process for the production of a chromating dye of the triphenylmethane series. The subject of this additional patent is a process for the production of an ear dye of the triphenylmethane series, which is characterized by

   that the triphenylmethane dye obtainable by condensation of 1 mole of 4-chlorobenzaldehyde with 2 moles of 1-oxy-5-methylbenzene-2-carboxylic acid and subsequent oxidation is reacted with 1-methylamino-4-methoxybenzene.

    <I> Example: </I> The dye obtained by condensation of 1 mol of 4-chlorobenzaldehyde with 2 mol of 1-oxy-5-methylbenzene-2-carboxylic acid (m-cresotinic acid) and subsequent oxidation (cf. German patent 252287 , Example, paragraph 2) is melted in the form of its free acid with excess 1-methylamino-4-methoxybenzene in the presence of water for several hours at about <B> 95-1000 </B> C,

   until the initially thin melt has disintegrated into a powder distributed in the water. If the excess 1-methylamino-4-methoxybenzene is removed by stirring with dilute hydrochloric acid, a dye is obtained which, after chroming, dyes wool in vivid blue tones.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Chromie- rungsfarbstoffes der Triphenylmethanreihe, dadurch gekennzeichnet, dass man den durch Kondensation von 1 Mo14-Chlorbenzaldehyd mit 2 Mol 1-Oxy- 5 -methylbenzol-2-carbon- säure und nachfolgende Oxydation erhält lichen Triphenylmethanfarbstoff mit 1-Metbyl- amino-4-methoxybenzol umsetzt. PATENT CLAIM: Process for producing a chromating dye of the triphenylmethane series, characterized in that the triphenylmethane dye obtained by condensation of 1 Mo14-chlorobenzaldehyde with 2 mol of 1-oxy-5-methylbenzene-2-carboxylic acid and subsequent oxidation is obtained with triphenylmethane dye with 1- Metbyl-amino-4-methoxybenzene converts. Der so erhaltene Triphenylmethanfarbstoff färbt Wolle nach der Chromierung in leb haften blauen Tönen. UNTERANSPRUCH: Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man den Triphenylme- thanfarbstoff mit überschüssigem 1-Methyl- amino-4-methoxybenzol in Gegenwart von Wasser mehrere Stunden lang bei etwa 95 bis<B>1000</B> C verschmilzt. The triphenylmethane dye obtained in this way dyes wool in lively blue shades after chromating. SUBSTANTIAL CLAIM: Process according to patent claim, characterized in that the triphenylmethane dye is fused with excess 1-methylamino-4-methoxybenzene in the presence of water at about 95 to 1000 C for several hours.
CH210524D 1937-06-03 1938-05-16 Process for the production of a chromating dye of the triphenylmethane series. CH210524A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE210524X 1937-06-03
CH205170T 1938-05-16

Publications (1)

Publication Number Publication Date
CH210524A true CH210524A (en) 1940-07-15

Family

ID=25724162

Family Applications (1)

Application Number Title Priority Date Filing Date
CH210524D CH210524A (en) 1937-06-03 1938-05-16 Process for the production of a chromating dye of the triphenylmethane series.

Country Status (1)

Country Link
CH (1) CH210524A (en)

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