CH215845A - Process for the preparation of a basic triphenylmethane dye. - Google Patents

Process for the preparation of a basic triphenylmethane dye.

Info

Publication number
CH215845A
CH215845A CH215845DA CH215845A CH 215845 A CH215845 A CH 215845A CH 215845D A CH215845D A CH 215845DA CH 215845 A CH215845 A CH 215845A
Authority
CH
Switzerland
Prior art keywords
dye
preparation
triphenylmethane dye
carried out
basic
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 CH215845A publication Critical patent/CH215845A/en

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09BORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B11/00Diaryl- or thriarylmethane dyes
    • C09B11/04Diaryl- or thriarylmethane dyes derived from triarylmethanes, i.e. central C-atom is substituted by amino, cyano, alkyl
    • C09B11/10Amino derivatives of triarylmethanes
    • C09B11/12Amino derivatives of triarylmethanes without any OH group bound to an aryl nucleus
    • C09B11/14Preparation from aromatic aldehydes, aromatic carboxylic acids or derivatives thereof and aromatic amines

Landscapes

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

Description

  

      Zusatzpatent    zum Hauptpatent Nr. 211928.    Verfahren zur Herstellung eines basischen     Triphenylmethanfarbstoffes.       Gegenstand vorliegender Erfindung ist  die Herstellung eines neuen basischen     Tri-          rhenylmethanfarbstoffes,    durch Kondensation  von     Oxäthyl-sek.-butylanilin    mit     o-Chlor-          benzaldehyd    und anschliessende     Oxydation     der     gebildeten        Leukoverbindung.    Die Kon  densation kann in Gegenwart von Salzsäure,  die Oxydation mit Hilfe von     Bl-eisuperoxyd     durchgeführt werden.

   Der     erhältliche    Farb  stoff färbt     gebeizte    Baumwolle in blaustichig  grünen Tönen an.  



  <I>Beispiel:</I>  20     Teile        Oxäthyl-,sek.-butylanilin    und  7 Teile     o-Chlorbenzaldehyd    werden mit 3 Tei  len Wasser und 6 Teilen Schwefelsäure von  60       B6        bis    zur beendigten     Kondensation    un  ter Rühren auf 103   erhitzt. Nach Verdün  nung mit Wasser und gegebenenfalls Destil  lieren mit Wasserdampf zur Vertreibung von  Resten überschüssiger Base oder Aldehyd er-    hält man die     Leukoverbindung,    die nach Um  kristallisieren aus     1Vlethylalkohol    den Schmelz  punkt 115   hat.  



  Nach Oxydation mit Schwefelsäure und       131eisuperoxyd    gewinnt man durch Aussahen  mit     Natriumsulfat    den Farbstoff als rot  bronzierendes Harz,     welcher    ,die     gebeizte    Fa  ser in blaustichig grünen Tönen von grösse  rer Klarheit anfärbt als der bekannte Farb  stoff aus     o-Chlorbenzaldehyd    und     Dimethyl-          anilin.    Der Farbstoff zeigt eine bessere Lös  lichkeit als der     isomere    Farbstoff aus     nor-          malprimär-Butylaniaäin.  



      Additional patent to main patent no. 211928. Process for the production of a basic triphenylmethane dye. The present invention relates to the preparation of a new basic tri-rhenylmethane dye by condensation of oxethyl-sec-butylaniline with o-chlorobenzaldehyde and subsequent oxidation of the leuco compound formed. The condensation can be carried out in the presence of hydrochloric acid and the oxidation can be carried out with the aid of Bl-eisperoxid.

   The available dye stains stained cotton in bluish green tones.



  <I> Example: </I> 20 parts of oxethyl-, sec-butylaniline and 7 parts of o-chlorobenzaldehyde are heated to 103 with 3 parts of water and 6 parts of sulfuric acid of 60 B6 until the condensation is complete. After dilution with water and, if necessary, distillation with steam to drive off residues of excess base or aldehyde, the leuco compound is obtained, which has a melting point of 115 after recrystallization from 1Vlethyl alcohol.



  After oxidation with sulfuric acid and ice peroxide, the dye is obtained as a red bronzing resin by peeling with sodium sulfate, which stains the stained fiber in bluish green tones of greater clarity than the known dye made from o-chlorobenzaldehyde and dimethyl aniline. The dye shows better solubility than the isomeric dye made from normal primary butyl anaenine.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines basischen Triphenylmethanfarbstoffes, dadurch gekenn zeichnet, dass man Oxäthyl-sek.-butylanilin mit o-Chlorbenzaldehyd kondensiert und an schliessend die gebildete Leukoverbindung oxydiert. Der erhältliche Farbstoff färbt gebeizte Baumwolle in blaustichig grünen Tönen an. UNTERÄNSPRüCHE 1. Verfahren nach Patentansprucb, da durch gekennzeichnet, dass man die Konden sation mit Schwefelsäure durchführt. 2. PATENT CLAIM: Process for the production of a basic triphenylmethane dye, characterized in that oxethyl-sec-butylaniline is condensed with o-chlorobenzaldehyde and the leuco compound formed is then oxidized. The dye available stains stained cotton in blue-tinged green shades. SUBSIDIARY CLAIMS 1. Method according to patent claims, characterized in that the condensation is carried out with sulfuric acid. 2. Verfahren nach Patentanspruch, da durch gekennzeichnet, dass man die Oxyda tion mit Bleisuperoxyd durchführt. Method according to claim, characterized in that the oxidation is carried out with lead peroxide.
CH215845D 1938-03-28 1939-03-22 Process for the preparation of a basic triphenylmethane dye. CH215845A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE215845X 1938-03-28
CH211928T 1939-03-22

Publications (1)

Publication Number Publication Date
CH215845A true CH215845A (en) 1941-07-15

Family

ID=25725125

Family Applications (1)

Application Number Title Priority Date Filing Date
CH215845D CH215845A (en) 1938-03-28 1939-03-22 Process for the preparation of a basic triphenylmethane dye.

Country Status (1)

Country Link
CH (1) CH215845A (en)

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