CH211822A - Process for the preparation of an azo dye. - Google Patents

Process for the preparation of an azo dye.

Info

Publication number
CH211822A
CH211822A CH211822DA CH211822A CH 211822 A CH211822 A CH 211822A CH 211822D A CH211822D A CH 211822DA CH 211822 A CH211822 A CH 211822A
Authority
CH
Switzerland
Prior art keywords
azo dye
dye
preparation
diazo
nitrobenzene
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 CH211822A publication Critical patent/CH211822A/en

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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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

  Zusatzpatent zum     Hauptpaterit        Nr.   <B>208950.</B>    Verfahren zur Herstellung eines     Azofarbstoffes.       Es wurde gefunden,     dass    man einen neuen  wertvollen     Azofarbstoff    erhält, wenn man       Butyloxätliylaminobenzol,    die     Diazoverbin-          dung    des     1-Amino-29-methoxy-4-nitrobenzols     und     Maleinsäureanhydrid    derart aufeinander  einwirken     lässt,

          dass    der saure     Maleinsäure-          ester    des     Butyloxätliylaminobenzols    gebildet  wird und der     Diazorest    in     4-Stellung    zur     ter-          -hären        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.  



  <I>Beispiel:</I>  <B>in</B> die     Diazolösung,    die man aus<B>168</B> Tei  len     1-Amino-2-metlioxy-4-nitrobenzol    her  stellt, trägt man<B>291</B> Teile des sauren       Maleinsäureesters    des     Butyloxäthylaminoben-          zols,    erhalten durch Umsetzung von     Malein-          säureanliydrid    mit     Butyloxäthylaminobenzol,     der in Form einer     wässrigen    Lösung eines       Ammoniumsalzes    vorliegt, ein. Man führt  die Kupplung durch längeres Rühren zu    Ende und kann auch allenfalls neutralisie  rende Mittel, wie z.

   B.     Natriumacetat,   <B>zu-</B>  geben. Der Farbstoff wird dann     abfiltriert     <B>und</B> etwas     mitWasser    gewaschen. Man ver  rührt ihn dann mit einer     Natriumehlorid-          lösung    und stellt mit     Natriumearbonat    oder  mit     Am-moniak    auf den     Neutralpunkt.  



  Additional patent to the main paterite 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 butyloxätliylaminobenzol, the diazo compound of 1-amino-29-methoxy-4-nitrobenzene and maleic anhydride are allowed to act on one another in such a way that

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



  The dye thus obtained 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 aqueous solution in red shades.



  <I> Example: </I> <B> in </B> the diazo solution which is produced from <B> 168 </B> parts of 1-amino-2-metlioxy-4-nitrobenzene is < B> 291 parts of the acidic maleic acid ester of butyloxethylaminobenzene, obtained by reacting maleic anhydride with butyloxäthylaminobenzene, 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, <B> add </B>. 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 Butyloxäthylaminobenzol, die Diazoverbin- dung des 1-Amino-2-methoxy-4-nitrobenzols und Maleinsäureanhydrid derart aufeinander einwirken lässt, PATENT CLAIM: Process for the production of an azo dye, characterized in that butyloxethylaminobenzene, the diazo compound of 1-amino-2-methoxy-4-nitrobenzene and maleic anhydride are allowed to act on one another, dass der saure Maleinsäure- ester des Butyloxätliylaminobenzols gebildet wird und der Diazorest in 4-Stellung zur ter tiären 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 butyloxätliylaminobenzols is formed and the diazo radical is in the 4-position to the tertiary amino group. The dye thus obtained 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 aqueous solution in red shades.
CH211822D 1937-09-18 1937-09-18 Process for the preparation of an azo dye. CH211822A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH208950T 1937-09-18
CH211822T 1937-09-18

Publications (1)

Publication Number Publication Date
CH211822A true CH211822A (en) 1940-10-15

Family

ID=25724613

Family Applications (1)

Application Number Title Priority Date Filing Date
CH211822D CH211822A (en) 1937-09-18 1937-09-18 Process for the preparation of an azo dye.

Country Status (1)

Country Link
CH (1) CH211822A (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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