CH211810A - Process for the preparation of an azo dye. - Google Patents

Process for the preparation of an azo dye.

Info

Publication number
CH211810A
CH211810A CH211810DA CH211810A CH 211810 A CH211810 A CH 211810A CH 211810D A CH211810D A CH 211810DA CH 211810 A CH211810 A CH 211810A
Authority
CH
Switzerland
Prior art keywords
azo dye
ethyloxethylaminobenzene
acid ester
dye
preparation
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 CH211810A publication Critical patent/CH211810A/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

  

  <B>Zusatzpatent</B> zum     Hauptpatent    Nr. 205950.    Verfahren zur Herstellung eines     Azofarbstoffes.       Es wurde gefunden, dass man einen neuen  wertvollen     Azofarbstoff    erhält, wenn man       Athyloxäthylaminobenzol,    die     Diazoverbin-          dung    des     1-Amino-4-nitrobenzols    und Bern  steinsäureanhydrid derart aufeinander ein  wirken, lässt, dass der saure Bernsteinsäure  ester des     Ätliyl!oxäthylaminobenzöls    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 scharlachroter Farbe  löst und     Acetatkunstseide    aus     wä.ssriger    Lö  sung in scharlachroten Tönen färbt.    <I>Beispiel:</I>  In die     Diazolösung,    die man aus 139 Tei  len     1-Amino-4-nitrobenzol    herstellt, trägt  man 265 Teile des sauren     Bernsteinsäure-          esters    des     Athyloxäthylaminobenzols,    erhal  ten durch Umsetzung von Bernsteinsäure  anhydrid mit     Äthyloxäthylaminobenzol,    der  in Form einer     wässrigen    Lösung eines Am  moniumsalzes vorliegt, 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 gewaschen. Man verrührt ihn  dann mit einer     Natriumchloridlösung    und  stellt mit     Natriumcarbonat    oder mit Ammo  niak auf den     Neutralpunkt.  



  <B> Additional patent </B> to main patent no. 205950. 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 and succinic anhydride interact in such a way that the succinic acid ester of ethyl oxäthylaminobenzöls 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 dissolves in the form of an alkali metal salt in water with a scarlet color and dyes acetate artificial silk from an aqueous solution in scarlet shades. <I> Example: </I> In the diazo solution, which is produced from 139 parts of 1-amino-4-nitrobenzene, one carries 265 parts of the acidic succinic acid ester of ethyloxethylaminobenzene, obtained by reacting succinic anhydride with ethyloxäthylaminobenzene, which is in the form of an aqueous solution of an ammonium salt.

   The] coupling is completed by prolonged stirring 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 Athyloxäthylaminobenzol, die Diazoverbin- dung des 1-Amino-4-nitrobenzols und Bern steinsäureanhydrid derart aufeinander ein wirken lässt, dass der saure Bernsteinsäure ester des Äthyloxäthylaminobenzols gebildet wird und der Diazorest in 4-Stellung zur ter tiären Aminogruppe eintritt. Der so erhaltene Farbstoff bildet ein dunkles Pulver, PATENT CLAIM: Process for the production of an azo dye, characterized in that ethyloxethylaminobenzene, the diazo compound of 1-amino-4-nitrobenzene and succinic anhydride act on one another in such a way that the acidic succinic acid ester of ethyloxethylaminobenzene is formed and the diazoric acid ester occurs in position 4 to the tertiary amino group. The dye thus obtained forms a dark powder, das sich in Form eines Al kalisalzes in Wasser mit scharlachroter Farbe löst und Acetatkunstseide aus wässriger Lösung in scharlachroten Tönen färbt. which dissolves in the form of an alkali metal salt in water with a scarlet color and dyes acetate artificial silk from an aqueous solution in scarlet shades.
CH211810D 1937-09-18 1937-09-18 Process for the preparation of an azo dye. CH211810A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH208950T 1937-09-18
CH211810T 1937-09-18

Publications (1)

Publication Number Publication Date
CH211810A true CH211810A (en) 1940-10-15

Family

ID=25724601

Family Applications (1)

Application Number Title Priority Date Filing Date
CH211810D CH211810A (en) 1937-09-18 1937-09-18 Process for the preparation of an azo dye.

Country Status (1)

Country Link
CH (1) CH211810A (en)

Similar Documents

Publication Publication Date Title
CH211810A (en) Process for the preparation of an azo dye.
CH211819A (en) Process for the preparation of an azo dye.
CH211822A (en) Process for the preparation of an azo dye.
CH211835A (en) Process for the preparation of an azo dye.
CH211813A (en) Process for the preparation of an azo dye.
CH211824A (en) Process for the preparation of an azo dye.
CH211823A (en) Process for the preparation of an azo dye.
CH211826A (en) Process for the preparation of an azo dye.
CH211806A (en) Process for the preparation of an azo dye.
CH211809A (en) Process for the preparation of an azo dye.
CH211830A (en) Process for the preparation of an azo dye.
CH211831A (en) Process for the preparation of an azo dye.
CH211816A (en) Process for the preparation of an azo dye.
CH211833A (en) Process for the preparation of an azo dye.
CH211832A (en) Process for the preparation of an azo dye.
CH211818A (en) Process for the preparation of an azo dye.
CH211804A (en) Process for the preparation of an azo dye.
CH211821A (en) Process for the preparation of an azo dye.
CH211827A (en) Process for the preparation of an azo dye.
CH211825A (en) Process for the preparation of an azo dye.
CH211820A (en) Process for the preparation of an azo dye.
CH211838A (en) Process for the preparation of an azo dye.
CH211828A (en) Process for the preparation of an azo dye.
CH211808A (en) Process for the preparation of an azo dye.
CH211837A (en) Process for the preparation of an azo dye.