CH159062A - Process for the preparation of a triarylmethane dye. - Google Patents

Process for the preparation of a triarylmethane dye.

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Publication number
CH159062A
CH159062A CH159062DA CH159062A CH 159062 A CH159062 A CH 159062A CH 159062D A CH159062D A CH 159062DA CH 159062 A CH159062 A CH 159062A
Authority
CH
Switzerland
Prior art keywords
preparation
dye
triarylmethane dye
mol
naphthaldehyde
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 CH159062A publication Critical patent/CH159062A/en

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Description

  

  Verfahren zur Darstellung eines     Triarylmethanfarbstoffes.       Wie im Hauptpatent     Nr.   <B>154178</B> beschrie  ben, kann die bei Substitution des     Amino-          restes    durch höhere     Alkylreste    eintretende  schwerere Löslichkeit von     Triphenylmethan-          farbstofferi    dadurch beseitigt -werden,     dass     man gleichzeitig in diese     Arnirjogruppen    noch       Oxyalkylgruppen    einführt.

   Im Hauptpatent  ist ein Verfahren zur Herstellung eines gut  löslichen     Triamiiiotriphenylmethanfarbstoffes       beschrieben, bei welchem man     4.4'-Di-(butyl-          oxyä,thyl   <B>-</B>     amino)   <B>-</B>     benzhydrol    mit     Butyl   <B>-</B>     oxy-          äthyl-aminobenzol    kondensiert     und    die gebil  dete     Leukoverbindung    zum Farbstoff oxydiert.  



  Nach vorliegender Erfindung erhält man  einen die tierische Faser klar gelblich grün  färbenden Farbstoff vermutlich der Konsti  tution:  
EMI0001.0021     
    indem man<B>1</B>     Mol.        1-Naphtaldehyd-2.4-di-          sulfosäure    mit 2     Mol.        BLityl-oxyätbyl-amino-          benzol    kondensiert und die     Leukobase    oxydiert.

      <I>Beispiel:</I>  <B>31,6</B> Teile     1-Naphtaldehyd-2.4-disuilfo-          säure    werden mit 43 Teilen     Butyl-oxyäthyl              aminobenzol    kondensiert und die     Leukover-          bindung    oxydiert.

   Man erhält 68,4 Teile  eines salzfreien Farbstoffes, der Wolle und  Seide ebenso stark färbt wie die um die  Hälfte grössere Menge des entsprechenden  Farbstoffes aus     1-Naphtaldebyd-2.4-disulfo-          säure        und        Diäthylaminobenzol.    Das     Egaii-          sierungsvermögen    des neuen Farbstoffes ist  gleich dem des erwähnten älteren Farbstoffes.  Die     Färbuno#    mit dem neuen Farbstoff ist,  was sehr gewünscht wird, erheblich gelber,  bei Abendbeleuchtung erheblich klarer gelber  als die des alten.



  Process for the preparation of a triarylmethane dye. As described in main patent no. 154178, the more difficult solubility of triphenylmethane dyes that occurs when the amino radical is substituted by higher alkyl radicals can be eliminated by introducing oxyalkyl groups into these amino groups at the same time.

   The main patent describes a process for the preparation of a readily soluble triamilliotriphenylmethane dye, in which 4,4'-di- (butyl-oxyä, thyl - amino) - benzhydrol is mixed with butyl > - </B> Oxy-ethyl-aminobenzene condenses and the leuco compound formed is oxidized to the dye.



  According to the present invention, the animal fiber is obtained with a clear yellowish green coloring, presumably of the constitution:
EMI0001.0021
    by condensing 1 mole of 1-naphthaldehyde-2,4-disulfonic acid with 2 moles of BLityl-oxyätbyl-aminobenzene and oxidizing the leuco base.

      <I> Example: </I> <B> 31.6 </B> parts of 1-naphthaldehyde-2,4-disulfonic acid are condensed with 43 parts of butyloxyethyl aminobenzene and the leuco compound is oxidized.

   68.4 parts of a salt-free dyestuff are obtained which dyes wool and silk just as strongly as the half greater amount of the corresponding dyestuff from 1-naphthaldebyd-2,4-disulphonic acid and diethylaminobenzene. The leveling capacity of the new dye is the same as that of the older dye mentioned. The coloration # with the new dye is, which is very much desired, considerably more yellow than that of the old one under evening lighting.

 

Claims (1)

PATENTANLSPRUCH: Verfahren zur Darstellung eines Triaryl- methanfarbstoffes, dadurch gekennzeichnet, dass man<B>1</B> Mol. 1-Naphtaldehyd-2.4-disulfo- säure mit 2 Mol. Butyl-oxyäthyl-aminobeiizol kondensiert und die Leukobase oxydiert. Der Farbstoff löst sich leicht in Wasser und färbt die tierischeFaser in klaren gelb lich grünen Tönen an. Claim: Process for the preparation of a triaryl methane dye, characterized in that <B> 1 </B> mol. 1-naphthaldehyde-2,4-disulphonic acid is condensed with 2 mol. Butyl-oxyethyl-aminobeiizol and the leuco base is oxidized. The dye dissolves easily in water and stains the animal fiber in clear yellowish green tones.
CH159062D 1930-02-14 1931-02-12 Process for the preparation of a triarylmethane dye. CH159062A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE159062X 1930-02-14
CH154178T 1931-02-12

Publications (1)

Publication Number Publication Date
CH159062A true CH159062A (en) 1932-12-15

Family

ID=25716383

Family Applications (1)

Application Number Title Priority Date Filing Date
CH159062D CH159062A (en) 1930-02-14 1931-02-12 Process for the preparation of a triarylmethane dye.

Country Status (1)

Country Link
CH (1) CH159062A (en)

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