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CH142447A - Process for the preparation of an azophthalein dye. - Google Patents

Process for the preparation of an azophthalein dye.

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Publication number
CH142447A
CH142447A CH142447DA CH142447A CH 142447 A CH142447 A CH 142447A CH 142447D A CH142447D A CH 142447DA CH 142447 A CH142447 A CH 142447A
Authority
CH
Switzerland
Prior art keywords
sep
dye
preparation
azophthalein
blue
Prior art date
Application number
Other languages
German (de)
Inventor
A-G J R Geigy
Original Assignee
Geigy Ag J R
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 Geigy Ag J R filed Critical Geigy Ag J R
Publication of CH142447A publication Critical patent/CH142447A/en

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Description

  

      Verfahren    zur Darstellung eines     Azoplitaleinfarbstoffes.            Gegenstand    dieser Erfindung ist ein Ver  fahren zur Darstellung eines     Azophtaleirn-          farbstoff'es    von nachstehender Formel:  
EMI0001.0006     
  
EMI0001.0007     
  
    welches <SEP> dadurch <SEP> gekennzeichnet <SEP> ist, <SEP> dass <SEP> mann
<tb>  den <SEP> Monoazofarbstoff <SEP> aus <SEP> o-Ainidophenol-p  srilfusiinui,e <SEP> und <SEP> Resorein <SEP> mit <SEP> Dinietlny-lainido  ni-osyberuzoylberuzuesärire <SEP> (dargestellt <SEP> aus
<tb>  Plitalsäure <SEP> und <SEP> Dinietlnyl-ni-ainidoplienol) <SEP> ini
<tb>  Verhältnis <SEP> gleicher <SEP> 111 < uleküle <SEP> kondensiert.

         <I>Beispiel:</I>    31 Teile des Farbstoffes ans     o-Amido-          phenol-p-sulfosRnre    rund     Resorcin    werden mit  <B>28.5</B> Teilen     Dimethylainido-in-osybenzovI-          benzoe,ärre    vermischt     unrd        eingetragen        irn     300 Teile     konnz.        Schwefelsäure.        plan    rührt    24 Stunden bei<B>80"</B>     und    giesst dann     irn          Wasser:

      die     Farbstoffsäure        f@illt        vollständig     ans. Sie bildet     getrocknet    ein     bronzierendes     Pulver, das irr     Wasser    auf     Zusatz    vorn     Alkalien     blaustichig violett, irr     honz.        Selitvefelsännre     orangerot     löslich    ist.

   Der nach bekannten       Verfahren    in (las     Natronsalz        übergeführte          Farbstoff    färbt Wolle     und    Seide     nachchromiert     oder     nachgekupfert    in     Mauern        Törnen        ton    guten       Echtheitseigenschaften.  



      Process for the preparation of an azoplitalein dye. The subject of this invention is a process for the preparation of an Azophtaleirn- dye'es of the following formula:
EMI0001.0006
  
EMI0001.0007
  
    which <SEP> is characterized by <SEP> <SEP>, <SEP> that <SEP> man
<tb> the <SEP> monoazo dye <SEP> from <SEP> o-ainidophenol-p srilfusiinui, e <SEP> and <SEP> resorein <SEP> with <SEP> Dinietlny-lainido ni-osyberuzoylberuzuesärire <SEP> (shown < SEP> off
<tb> Plital acid <SEP> and <SEP> dinietinyl-ni-ainidoplienol) <SEP> ini
<tb> Ratio <SEP> equal <SEP> 111 <uleküle <SEP> condensed.

         <I> Example: </I> 31 parts of the dye of o-amidophenol-p-sulfosRnre around resorcinol are mixed with <B> 28.5 </B> parts of dimethylainido-in-osybenzovI-benzoe, arre and entered in 300 Parts conc. Sulfuric acid. plan stirs for 24 hours at <B> 80 "</B> and then pours in the water:

      the dyestuff acid fills up completely. When dried, it forms a bronzing powder, which, when alkaline is added, has a bluish tinge of violet, irr honey. Selitvefelsännre is soluble in orange-red.

   The dye, which is converted into sodium salt by known processes, dyes wool and silk after chrome-plated or copper-plated in walls with good fastness properties.

Claims (1)

EMI0001.0044 PATE\TTANSPRUCT3: EMI0001.0045 Verfahren <SEP> zur <SEP> Darstellung <SEP> eines <SEP> :lzop@uta leinfarbstoffes, <SEP> dadurch <SEP> gekernnzeichnet, <SEP> dah <tb> nian <SEP> den <SEP> llonnoazofarbstof <SEP> arus <SEP> o-,:1nrni(Ioplnernul p-sr.nlfosiirrre <SEP> nnn)ci <SEP> Resorein <SEP> mit <SEP> Dinrretlrvl.iniii(lo in-oxyberizoylbernzoesärrre <SEP> kondensiert. <SEP> Der <tb> neue <SEP> Farbstoff <SEP> ist <SEP> ein <SEP> dunkles <SEP> 1'rrlver, <SEP> das <tb> sich <SEP> in <SEP> Wasser <SEP> blanuviolett, <SEP> in <SEP> konz. <SEP> Schwefel säUre <SEP> orangerot <SEP> löst. <SEP> Die <SEP> nachchroinierte <tb> oder <SEP> nachäekupferte <SEP> Färbung <SEP> ist <SEP> blau. EMI0001.0044 PATE \ TTANSPRUCT3: EMI0001.0045 Method <SEP> for <SEP> representation <SEP> of a <SEP>: lzop @ uta linen dye, <SEP> thereby marked with <SEP>, <SEP> as <tb> nian <SEP> den <SEP> llonnoazofarbstof <SEP> arus <SEP> o - ,: 1nrni (Ioplnernul p-sr.nlfosiirrre <SEP> nnn) ci <SEP> Resorein <SEP> with <SEP> Dinrretlrvl. iniii (lo in-oxyberizoylbernzoesärrre <SEP> condensed. <SEP> The <tb> new <SEP> dye <SEP> is <SEP> a <SEP> dark <SEP> 1'rrlver, <SEP> that <tb> <SEP> in <SEP> water <SEP> blue-violet, <SEP> in <SEP> conc. <SEP> sulfuric acid <SEP> orange red <SEP> dissolves. <SEP> The <SEP> postchroinated <tb> or <SEP> after-coppered <SEP> coloring <SEP> is <SEP> blue.
CH142447D 1928-05-24 1929-05-21 Process for the preparation of an azophthalein dye. CH142447A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE142447X 1928-05-24

Publications (1)

Publication Number Publication Date
CH142447A true CH142447A (en) 1930-09-30

Family

ID=5669207

Family Applications (1)

Application Number Title Priority Date Filing Date
CH142447D CH142447A (en) 1928-05-24 1929-05-21 Process for the preparation of an azophthalein dye.

Country Status (1)

Country Link
CH (1) CH142447A (en)

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