CH211820A - Process for the preparation of an azo dye. - Google Patents

Process for the preparation of an azo dye.

Info

Publication number
CH211820A
CH211820A CH211820DA CH211820A CH 211820 A CH211820 A CH 211820A CH 211820D A CH211820D A CH 211820DA CH 211820 A CH211820 A CH 211820A
Authority
CH
Switzerland
Prior art keywords
azo dye
dye
preparation
diazo
butyloxethylaminobenzene
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 CH211820A publication Critical patent/CH211820A/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.     208950.       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-nitrobenzols    und     Malein-          säureanhydrid    derart aufeinander einwirken  lässt,

   dass der saure     Haleinsäureester    des     Bu-          tyloxä.thylaminobenzols    gebildet wird und der       Diazorest    in     4-Stellung    zur tertiären     Amino-          gruppe    eintritt.  



  Der so erhaltene Farbstoff bildet ein  dunkles Pulver, das sich in Form eines Al  kalisalzes in Wasser mit roter Farbe löst und       Acetatkunstseide    aus wässriger Lösung     in     roten Tönen färbt.  



  <I>Beispiel:</I>  In die     Diazolösung,    die man aus 139 Tei  len     1-Amino-4-nitrobenzol    herstellt, trägt  man 291 Teile des sauren     Maleinsäureesters     des     Butyloxäthylaminobenzols,    erhalten durch  Umsetzung von     Maleinsäureanhydrid    mit     Bu-          thyloxäthylaminobenzol,    der in Form einer       wässrigen    Lösung eines     Ammoniumsalzes    vor  liegt, ein. Man führt die Kupplung durch  längeres Rühren zu Ende und kann auch    allenfalls neutralisierende Mittel. wie z. B.       Natriumacetat,    zugeben.

   Der Farbstoff wird  dann     abfiltriert    und etwas mit Wasser ge  waschen. Man verrührt ihn dann mit einer       Natriumchloridlösung    und stellt mit Natrium  carbonat oder mit Ammoniak auf den Neu  tralpunkt.



  Additional patent to main patent no. 208950. 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 and maleic anhydride are allowed to act on one another in such a way that

   that the acidic haloic acid ester of butyloxä.thylaminobenzols is formed and the diazo radical enters in 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 red color and dyes acetate rayon from an aqueous solution in red shades.



  <I> Example: </I> In the diazo solution, which is produced from 139 parts of 1-amino-4-nitrobenzene, one carries 291 parts of the acidic maleic acid ester of butyloxethylaminobenzene, obtained by reacting maleic anhydride with butyloxäthylaminobenzene, which in In the form of an aqueous solution of an ammonium salt. The coupling is completed by prolonged stirring and neutralizing agents can also be used. 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 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-nitrobenzols und Malein- säureanhydrid derart aufeinander einwirken lässt, PATENT CLAIM: Process for the production of an azo dye, characterized in that butyloxethylaminobenzene, the diazo compound of 1-amino-4-nitrobenzene and maleic anhydride are allowed to act on one another in such a way that dass der saure Maleinsäureester des Bu- tyloxäthylaminobenzols 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 roter Farbe löst und Acetatkunstseide aus wässriger Lösung in roten Tönen färbt. that the acidic maleic acid ester of butyloxäthylaminobenzols 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 alkali salt in water with a red color and dyes acetate rayon from aqueous solution in red tones.
CH211820D 1937-09-18 1937-09-18 Process for the preparation of an azo dye. CH211820A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH208950T 1937-09-18
CH211820T 1937-09-18

Publications (1)

Publication Number Publication Date
CH211820A true CH211820A (en) 1940-10-15

Family

ID=25724611

Family Applications (1)

Application Number Title Priority Date Filing Date
CH211820D CH211820A (en) 1937-09-18 1937-09-18 Process for the preparation of an azo dye.

Country Status (1)

Country Link
CH (1) CH211820A (en)

Similar Documents

Publication Publication Date Title
CH211820A (en) Process for the preparation of an azo dye.
CH211822A (en) Process for the preparation of an azo dye.
CH211826A (en) Process for the preparation of an azo dye.
CH211832A (en) Process for the preparation of an azo dye.
CH211827A (en) Process for the preparation of an azo dye.
CH211819A (en) Process for the preparation of an azo dye.
CH211817A (en) Process for the preparation of an azo dye.
CH211806A (en) Process for the preparation of an azo dye.
CH211811A (en) Process for the preparation of an azo dye.
CH211808A (en) Process for the preparation of an azo dye.
CH211814A (en) Process for the preparation of an azo dye.
CH211805A (en) Process for the preparation of an azo dye.
CH211824A (en) Process for the preparation of an azo dye.
CH208950A (en) Process for the preparation of an azo dye.
CH211821A (en) Process for the preparation of an azo dye.
CH211831A (en) Process for the preparation of an azo dye.
CH211807A (en) Process for the preparation of an azo dye.
CH211815A (en) Process for the preparation of an azo dye.
CH211802A (en) Process for the preparation of an azo dye.
CH211816A (en) Process for the preparation of an azo dye.
CH211830A (en) Process for the preparation of an azo dye.
CH211838A (en) Process for the preparation of an azo dye.
CH211833A (en) Process for the preparation of an azo dye.
CH211818A (en) Process for the preparation of an azo dye.
CH211809A (en) Process for the preparation of an azo dye.