CH236997A - Process for the production of a new azo dye. - Google Patents

Process for the production of a new azo dye.

Info

Publication number
CH236997A
CH236997A CH236997DA CH236997A CH 236997 A CH236997 A CH 236997A CH 236997D A CH236997D A CH 236997DA CH 236997 A CH236997 A CH 236997A
Authority
CH
Switzerland
Prior art keywords
azo dye
production
new azo
dye
parts
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 CH236997A publication Critical patent/CH236997A/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
    • C09B29/00—Monoazo dyes prepared by diazotising and coupling
    • C09B29/06—Monoazo dyes prepared by diazotising and coupling from coupling components containing amino as the only directing group
    • C09B29/08—Amino benzenes
    • C09B29/0805—Amino benzenes free of acid groups
    • C09B29/0807—Amino benzenes free of acid groups characterised by the amino group
    • C09B29/0809—Amino benzenes free of acid groups characterised by the amino group substituted amino group
    • C09B29/0811—Amino benzenes free of acid groups characterised by the amino group substituted amino group further substituted alkylamino, alkenylamino, alkynylamino, cycloalkylamino aralkylamino or arylamino
    • C09B29/0813—Amino benzenes free of acid groups characterised by the amino group substituted amino group further substituted alkylamino, alkenylamino, alkynylamino, cycloalkylamino aralkylamino or arylamino substituted by OH, O-C(=X)-R, O-C(=X)-X-R, O-R (X being O,S,NR; R being hydrocarbonyl)

Landscapes

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

Description

  

  Verfahren zur Herstellung eines neuen     Azofarbstoffes.       Es     wurde    gefunden, dass man einen neuen       Azofarbstoff    erhält, wenn man die     Diazover-          bindung    des     3,5-Dinitroaminobenzols    mit     Di-          oxäthyl-aminobenzol    vereinigt.  



  Der so erhaltene Farbstoff bildet in     trok-          kenem    Zustande ein rotes Pulver, das sich in  organischen Lösungsmitteln mit orangeroter  Farbe löst und das     Acetatkunstseide    aus fei  ner Suspension in echten,     rotstichig    orangen  Tönen färbt.  



       Beispiel:     18,3 Teile     3,5-Dinitroaminobenzol    werden  in 150 Teilen 30%iger Salzsäure durch Er  wärmen gelöst. Man kühlt diese Lösung  durch Zugabe von Eis und versetzt dann  diese kalte Suspension unter Rühren mit  einer Lösung von 7 Teilen     Natriumnitrit    in  etwa 25 Teilen Wasser.  



  Man bereitet nun eine Lösung von 18,1  Teilen     Dioxäthyl-aminobenzol    in 50 Teilen  Wasser und 50 Teilen     2n-Salzsäure.    Diese    Lösung versetzt man mit der     Diazolösung     und führt die     Farbstoffbildung    durch Zu  gabe von etwa 200 Teilen     Natriumacetat    zu  Ende. Man filtriert den Farbstoff ab und  wäscht ihn neutral.



  Process for the production of a new azo dye. It has been found that a new azo dye is obtained if the diazo compound of 3,5-dinitroaminobenzene is combined with dioxyethyl-aminobenzene.



  When dry, the dye thus obtained forms a red powder which dissolves in organic solvents with an orange-red color and dyes the acetate artificial silk from a fine suspension in real, reddish-tinged orange tones.



       Example: 18.3 parts of 3,5-dinitroaminobenzene are dissolved in 150 parts of 30% hydrochloric acid by heating. This solution is cooled by adding ice, and a solution of 7 parts of sodium nitrite in about 25 parts of water is then added to this cold suspension, while stirring.



  A solution of 18.1 parts of dioxethyl aminobenzene in 50 parts of water and 50 parts of 2N hydrochloric acid is now prepared. This solution is mixed with the diazo solution and the dye formation is completed by adding about 200 parts of sodium acetate. The dye is filtered off and washed neutral.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen Azofarbstoffes, dadurch gekennzeichnet, dass man die Diazoverbindung des 3,5-Dinitro- aminobenzols mit Dioxäthyl-aminobenzol vereinigt. Der so erhaltene Farbstoff bildet in trok- kenem Zustande ein rotes Pulver, das sich in organischen Lösungsmitteln mit orangeroter Farbe löst und das Acetatkunstseide aus fei ner Suspension in echten, rotstiehig orangen Tönen färbt. Claim: Process for the preparation of a new azo dye, characterized in that the diazo compound of 3,5-dinitroaminobenzene is combined with dioxethylaminobenzene. When dry, the dye thus obtained forms a red powder which dissolves in organic solvents with an orange-red color and dyes the acetate artificial silk from a fine suspension in genuine, reddish-orange tones.
CH236997D 1942-08-10 1942-08-10 Process for the production of a new azo dye. CH236997A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH236997T 1942-08-10

Publications (1)

Publication Number Publication Date
CH236997A true CH236997A (en) 1945-03-31

Family

ID=4459720

Family Applications (1)

Application Number Title Priority Date Filing Date
CH236997D CH236997A (en) 1942-08-10 1942-08-10 Process for the production of a new azo dye.

Country Status (1)

Country Link
CH (1) CH236997A (en)

Similar Documents

Publication Publication Date Title
CH236997A (en) Process for the production of a new azo dye.
CH237130A (en) Process for the production of a new azo dye.
CH238625A (en) Process for the production of a new azo dye.
CH119898A (en) Process for the production of a new dye.
CH238626A (en) Process for the production of a new azo dye.
CH238624A (en) Process for the production of a new azo dye.
CH222693A (en) Process for the preparation of a monoazo dye.
CH234786A (en) Process for the production of a new azo dye.
CH238623A (en) Process for the production of a new azo dye.
CH202749A (en) Process for the preparation of an azo dye.
CH202747A (en) Process for the preparation of an azo dye.
CH202743A (en) Process for the preparation of an azo dye.
CH200370A (en) Process for the preparation of a chromable o-oxydisazo dye.
CH177838A (en) Process for the production of a new azo dye.
CH147697A (en) Process for the production of a new metal-containing dye.
CH292301A (en) Process for the preparation of a monoazo dye of the pyrazolone series.
CH238336A (en) Process for the preparation of a new disazo dye.
CH144758A (en) Process for the production of a new metal-containing dye.
CH177840A (en) Process for the production of a new azo dye.
CH171233A (en) Process for the production of a new azo dye.
CH202746A (en) Process for the preparation of an azo dye.
CH165039A (en) Process for the production of a new azo dye.
CH229356A (en) Process for the preparation of a trisazo dye.
CH229358A (en) Process for the preparation of a trisazo dye.
CH189032A (en) Process for the production of a new azo dye.