CH211834A - Process for the preparation of an azo dye. - Google Patents

Process for the preparation of an azo dye.

Info

Publication number
CH211834A
CH211834A CH211834DA CH211834A CH 211834 A CH211834 A CH 211834A CH 211834D A CH211834D A CH 211834DA CH 211834 A CH211834 A CH 211834A
Authority
CH
Switzerland
Prior art keywords
azo dye
metlioxy
methoxy
methyl
dye
Prior art date
Application number
Other languages
German (de)
Inventor
Gesellschaft Fuer Chemis Basel
Original Assignee
Chem Ind Basel
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 Chem Ind Basel filed Critical Chem Ind Basel
Publication of CH211834A publication Critical patent/CH211834A/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
    • C09B43/00—Preparation of azo dyes from other azo compounds
    • C09B43/18—Preparation of azo dyes from other azo compounds by acylation of hydroxyl group or of mercapto group
    • C09B43/20—Preparation of azo dyes from other azo compounds by acylation of hydroxyl group or of mercapto group with monocarboxylic acids, carbamic acid esters or halides, mono- isocyanates or haloformic acid esters
    • C09B43/202—Aliphatic, cycloaliphatic, araliphatic carboxylic acids

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Coloring (AREA)

Description

  

  Zusatzpatent zum     1:lauptpatent        Nr.   <B>208950.</B>    Verfahren zur Herstellung eines     Azofarbstoffes.       Es wurde gefunden,     dass    man einen neuen  wertvollen     Azofarb-stoff    erhält, wenn man  <B>5 -</B>     Methyl   <B>-</B> 2<B>-</B>     me-thoxy-N-#ätliyloxätliylamino        -          benzel,    die     Diazoverbindung,des        1-Amina-92-          methoxy-4-nit,robeDzol,

  s    und     Maleinsäure-          anhydrid    derart aufeinander einwirken     lässt,          dassder        sa-ure        Maleinsäureester    des     5-Methyl-          9--methoxy-N-ä,thyl,oxäthylaminobenzol,s        ge-          'bildet    wird und der     Diazorest    in     4-,Stellung     zur tertiären     Aminogruppe    eintritt.  



  Der     oo    erhaltene Farbstoff     bilässt        ein     dunkles Pulver, das sieh in Form eines       Alkalioalzes    in Wasser mit roter Farbe löst  und     Acetatkungtseicle    aus     wässriger    Lösung  in roten Tönen färbt.

      <I>Beispiel:</I>    In die     DiazeUoung,    die man     aus   <B>168</B> Tei  len     1-Amino-2-met'hchxy-4-nitrobenzol    her  stellt, trägt man<B>293</B> Teile, des     eauren        Malein-          säureesters,    des 5-Metliyl-2-methoxy-N-Uhyl-         oxätllylaminobenzo,1,s,    erhalten     durtli    Um  setzung von     Maleineäureanhycl#ri#d    mit     5-Me-          t'hyl-2-methoxy   <B>-<I>N</I> -</B>     äthyloxätliylaminobenzol,          ,

  der    in Form     ein-er        wässrigen    Lösung eines       Ammoniumsalzes    vorliegt,     ein.    Man führt  die Kupplung     clure,1,i    längeres Rühren zu  Ende und kann auch allenfalls neutralisie  rende Mittel, wie z. B.     Natriumacetat,    zu  geben. Der Farbstoff wird dann     abfiltriert          und    etwas mit Wasser gewaschen.

   Man     ver-          rühTt        ihn    dann mit einer     Natriumahlorid-          16eung    und stellt mit     Natriumcarbonat    oder  mit Ammoniak auf den     Neutralpunkt.  



  Additional patent to 1: main patent no. <B> 208950. </B> Process for the production of an azo dye. It has been found that a new valuable azo dye is obtained if <B> 5 - </B> Methyl <B> - </B> 2 <B> - </B> me-thoxy-N- # ätliyloxätliylamino - benzel, the diazo compound, des 1-Amina-92-methoxy-4-nit, robeDzol,

  S and maleic anhydride can act on one another in such a way that the acidic maleic acid ester of 5-methyl-9-methoxy-N-ä, thyl, oxethylaminobenzene, s is formed and the diazo radical is in the 4- position to the tertiary amino group entry.



  The dyestuff obtained oo forms a dark powder which dissolves in the form of an alkali metal salt in water with a red color and dyes acetate dye from aqueous solution in red tones.

      <I> Example: </I> The DiazeUoung, which is made from <B> 168 </B> parts of 1-amino-2-met'hchxy-4-nitrobenzene, is <B> 293 </ B> Parts of the acidic maleic acid ester, of 5-methyl-2-methoxy-N-Uhyloxätllylaminobenzo, 1, s, obtained by conversion of maleic acid anhydride with 5-methyl-2- methoxy <B> - <I> N </I> - </B> äthyloxätliylaminobenzol,,

  which is in the form of an aqueous solution of an ammonium salt. You lead the coupling clure, 1, i prolonged stirring to the end and may also neutralizing agents such. B. sodium acetate to give. The dye is then filtered off and washed a little with water.

   It is then mixed with a sodium chloride solution and adjusted to the neutral point with sodium carbonate or with ammonia.

Claims (1)

<B>PATENTANSPRUCH:</B> Verfaären zur Herstellung eines Azofarb- stoffes, dadurch gekennzeichnet, dass man <B>5 -</B> Metliyl <B>-</B> 2<B>-</B> methoxy-N-Uliyloxäthylamino - ben#zol, die Diazoverbindung,des 1-Am-ino-2- metlioxy-4-nitrobenzol,s und Maleineäure- anhydrid derart aufeinander einwirken lässt, <B> PATENT CLAIM: </B> Processing for the production of an azo dye, characterized in that <B> 5 - </B> Metliyl <B> - </B> 2 <B> - </B> methoxy -N-Uliyloxäthylamino - ben # zol, the diazo compound, 1-Am-ino-2-metlioxy-4-nitrobenzene, s and maleic anhydride can act on each other in such a way that dass der saure Maleinsäureester des 5-Methyl- 2-metlioxy-N-äthyloxä,thylaminobenzol,9 ge bildet wird und der Diazorüst in 4-Stellung zur tertiären Aminogruppe eintritt. Der oo erhaltene Farbstoff bildet ein dunkles Pulver, das sieh in Form eines Alkalisalzes in Waeser mit roter Farbe löet und Acetatkunstseide aus wässriger Lösung in roten Tönen färbt. that the acidic maleic acid ester of 5-methyl-2-metlioxy-N-äthyloxä, thylaminobenzol, 9 ge is formed and the diazo structure occurs in the 4-position to the tertiary amino group. The dye obtained above forms a dark powder which, in the form of an alkali salt, dissolves in water with a red color and dyes acetate artificial silk from an aqueous solution in red tones.
CH211834D 1937-09-18 1937-09-18 Process for the preparation of an azo dye. CH211834A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH211834T 1937-09-18
CH208950T 1937-09-18

Publications (1)

Publication Number Publication Date
CH211834A true CH211834A (en) 1940-10-15

Family

ID=25724625

Family Applications (1)

Application Number Title Priority Date Filing Date
CH211834D CH211834A (en) 1937-09-18 1937-09-18 Process for the preparation of an azo dye.

Country Status (1)

Country Link
CH (1) CH211834A (en)

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