CH211813A - Process for the preparation of an azo dye. - Google Patents

Process for the preparation of an azo dye.

Info

Publication number
CH211813A
CH211813A CH211813DA CH211813A CH 211813 A CH211813 A CH 211813A CH 211813D A CH211813D A CH 211813DA CH 211813 A CH211813 A CH 211813A
Authority
CH
Switzerland
Prior art keywords
azo dye
preparation
dye
diazo
way
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 CH211813A publication Critical patent/CH211813A/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

Landscapes

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

Description

  

      Zusatzpatent    zum Hauptpatent Nr.     2089"00.       Verfahren zur Herstellung eines     Azofarbstoü'es.       Es wurde gefunden, dass man einen neuen  wertvollen     Azofarbstoff    erhält, wenn man       Äthyloxäthylaminobenzol,    die     Diazoverbin-          dung    des 1     Amino-4-nitrobenzol-2-methyl-          sulfons    und     Bernsteinsäureanhydrid    derart  aufeinander einwirken lässt,

   dass der saure       Bernsteinsäureester    des     Äthyloxäthylamino-          benzols    gebildet wird und der     Diazorest    in       9-Stellung    zur tertiären     Aminogruppe    ein  tritt.  



  Der so erhaltene Farbstoff bildet ein  dunkles Pulver, das sich in Form eines Al  kalisalzes in Wasser mit violetter Farbe löst  -und     Acetatkunstseide    aus wässriger Lösung  in violetten Tönen färbt.    <I>Beispiel:</I>    In die     Diazolösung,    die man aus<B>216</B> Tei  len 1 -     Amino-4-nitrobenzol-2-methylsulfon     herstellt, trägt man<B>265</B> Teile des sauren       ssernsteinsä.ureesters    des     Äthyloxäthylamino-          '@enzols,    erhalten durch Umsetzung von Bern  steinsäureanhydrid mit     Äthyloxäthyla.mino-          benzol,

      der in Form einer     wässrigen    Lösung  eines     Ammoniumsalzes    vorliegt, ein. Man  führt die Kupplung durch längeres Rühren    zu Ende und kann auch allenfalls neutrali  sierende Mittel,     wie    z. B.     Natriumacetat,    zu  geben. Der Farbstoff wird dann     abfiltriert     und etwas mit Wasser gewaschen. Man ver  rührt ihn     dann    mit einer     Natriumchlorid-          lösung    und stellt mit     Natriumcarbonat    oder  mit Ammoniak auf den     Neutralpunkt.  



      Additional patent to main patent no. 2089 "00. Process for the production of an azo dye. It has been found that a new valuable azo dye is obtained when ethyloxethylaminobenzene, the diazo compound of 1-amino-4-nitrobenzene-2-methylsulfone and succinic anhydride interact in such a way that

   that the acidic succinic acid ester of ethyloxethylamino benzene is formed and the diazo radical occurs in the 9-position to the tertiary amino group.



  The dye thus obtained forms a dark powder which dissolves in the form of an alkali salt in water with a violet color and dyes acetate artificial silk from an aqueous solution in violet tones. <I> Example: </I> <B> 265 </B> parts are added to the diazo solution that is produced from <B> 216 </B> parts 1 - amino-4-nitrobenzene-2-methylsulfone of the acid ssernsteinsä.ureester of Äthyloxäthylamino- '@enzols, obtained by reacting succinic anhydride with Äthyloxäthyla.mino- benzene,

      which is in the form of an aqueous solution of an ammonium salt. The coupling is completed by prolonged stirring and, if necessary, neutralizing agents such. B. sodium acetate to give. The dye is then filtered off and washed a little with water. It is then stirred with a sodium chloride solution and set to neutral with sodium carbonate or ammonia.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Azofarb- stoffes, dadurch gekennzeichnet, dass man Äthyloxäthylaminobenzol, die Diazoverbin- dung des 1-Amino-4-nitrobenzols-2-methyl- sulfons und Bernsteinsäureanhydrid derart aufeinander einwirken lässt, PATENT CLAIM: Process for the production of an azo dye, characterized in that ethyloxethylaminobenzene, the diazo compound of 1-amino-4-nitrobenzenes-2-methylsulphone and succinic anhydride are allowed to act on one another in such a way that dass der saure Bernsteinsäureester des Äthyloxäthylamino- benzols gebildet wird und der Diazorest in 4-Stellung zur tertiären Aminogruppe ein- tritt. Der so erhaltene Farbstoff bildet ein dunkles Pulver, das sich in Form eines Al kalisalzes in Wasser mit violetter Farbe löst und Acetatkunstseide aus wässriger Lösung in violetten Tönen färbt. that the acidic succinic acid ester of ethyloxethylamino benzene is formed and the diazo radical occurs in the 4 position to the tertiary amino group. The dye obtained in this way forms a dark powder which dissolves in the form of an alkali salt in water with a violet color and dyes acetate artificial silk from an aqueous solution in violet tones.
CH211813D 1937-09-18 1937-09-18 Process for the preparation of an azo dye. CH211813A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH211813T 1937-09-18
CH208950T 1937-09-18

Publications (1)

Publication Number Publication Date
CH211813A true CH211813A (en) 1940-10-15

Family

ID=25724604

Family Applications (1)

Application Number Title Priority Date Filing Date
CH211813D CH211813A (en) 1937-09-18 1937-09-18 Process for the preparation of an azo dye.

Country Status (1)

Country Link
CH (1) CH211813A (en)

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