CH211819A - Process for the preparation of an azo dye. - Google Patents

Process for the preparation of an azo dye.

Info

Publication number
CH211819A
CH211819A CH211819DA CH211819A CH 211819 A CH211819 A CH 211819A CH 211819D A CH211819D A CH 211819DA CH 211819 A CH211819 A CH 211819A
Authority
CH
Switzerland
Prior art keywords
azo dye
dye
preparation
diazo
violet
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 CH211819A publication Critical patent/CH211819A/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

Description

  

  Zusatzpatent zum Hauptpatent     Nr.   <B>208950.</B>    Verfahren zur Herstellung eines     Azofarbstoffes.       Es wurde gefunden,     dass    man einen neuen  wertvollen     Azofarbstoff    erhält, wenn man       Butyloxäthylaminobenzol,    die     Diazoverbin-          dung    des     1-Amino-4-nitrobenzol-2-methyl-          sulfons    und     Maleinsäureanhydrid    derart auf  einander einwirken     lässt,

          dass    der saure       Maleinsäureester    des     Butyloxäthylaminoben-          zols    gebildet wird und der     Diazorest    in     4-          Stellung    zur tertiären     Aminogruppe    eintritt.  



  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     Diazolbsung,    die man aus<B>216</B>  Teilen     1-Amino-4-nitrobenzol-2-methylsulion     herstellt, trägt man<B>291</B> Teile des sauren       Maleinsäureesters    des     Butyloxäthylaminoben-          zols,    erhalten durch Umsetzung von     Malein-          säureanhydrid    mit     Butyloxäthylaminobenzol,     der in Form einer     wässrigen    Lösung eines       Ammoniumsalzes    vorliegt, ein. Man führt die  Kupplung durch längeres Rühren zu Ende       ZD     und kann auch allenfalls neutralisierende    Mittel, wie z.

   B.     Natriumacetat,    zugeben.  Der Farbstoff wird dann     abfiltriert    und  etwas mit Wasser gewaschen. Man verrührt  ihn dann mit einer     Natriumehloridlösung    und  stellt mit     Natriumearbonat    oder mit Ammo  niak auf den     Neutralpunkt.  



  Additional patent to 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 butyloxethylaminobenzene, the diazo compound of 1-amino-4-nitrobenzene-2-methylsulfone and maleic anhydride are allowed to act on one another in such a way that

          that the acidic maleic acid ester of butyloxäthylaminobenzene is formed and the diazo radical enters the 4-position to the tertiary amino group.



  The dye obtained in this way forms a dark powder which, in the form of an alkali salt, dissolves in water with a violet color and dyes acetate artificial silk from an aqueous solution in violet shades.



  <I> Example: </I> <B> 291 </B> parts of are carried into the diazole solution that is produced from <B> 216 </B> parts of 1-amino-4-nitrobenzene-2-methylsulion acidic maleic acid ester of butyloxäthylaminobenzene, obtained by reacting maleic anhydride with butyloxäthylaminobenzene, which is in the form of an aqueous solution of an ammonium salt. The coupling is carried out by prolonged stirring to the end ZD and neutralizing agents, such as.

   B. sodium acetate, add. The dye is then filtered off and washed a little with water. It is then stirred with a sodium chloride solution and adjusted to the neutral point with sodium carbonate or with ammonia.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Azofarb- stoffes, dadurch gekennzeichnet, dass man Butyloxäthylaminobenzol, die Diazoverbin- dung des 1-Amino-4-nitrobenzol-2-meil-lyl- sulfons und Haleinsäureanhydrid deraxt auf einander einwirken lässt, PATENT CLAIM: Process for the production of an azo dye, characterized in that butyloxethylaminobenzene, the diazo compound of 1-amino-4-nitrobenzene-2-meil-lylsulfone and haleinic anhydride are allowed to act on one another, dass der saure Maleinsäureester des Butyloxäthylamino- 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- halisalzes in Wasser mit violetter Farbe löst und Acetatkunstseide aus wässriger Lösung in violetten Tönen färbt. that the acidic maleic acid ester of butyloxäthylamino- benzene is formed and the diazo radical occurs in the 4-position to the tertiary amino group. The dye thus obtained forms a dark powder which dissolves in the form of an alhali salt in water with a violet color and dyes acetate artificial silk from an aqueous solution in violet shades.
CH211819D 1937-09-18 1937-09-18 Process for the preparation of an azo dye. CH211819A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH211819T 1937-09-18
CH208950T 1937-09-18

Publications (1)

Publication Number Publication Date
CH211819A true CH211819A (en) 1940-10-15

Family

ID=25724610

Family Applications (1)

Application Number Title Priority Date Filing Date
CH211819D CH211819A (en) 1937-09-18 1937-09-18 Process for the preparation of an azo dye.

Country Status (1)

Country Link
CH (1) CH211819A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1468201B1 (en) * 1961-01-19 1971-11-11 Merck & Co Inc phenoxy-acetic acid compounds and processes for their preparation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1468201B1 (en) * 1961-01-19 1971-11-11 Merck & Co Inc phenoxy-acetic acid compounds and processes for their preparation

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