CH178120A - Process for the production of an indigoid dye. - Google Patents

Process for the production of an indigoid dye.

Info

Publication number
CH178120A
CH178120A CH178120DA CH178120A CH 178120 A CH178120 A CH 178120A CH 178120D A CH178120D A CH 178120DA CH 178120 A CH178120 A CH 178120A
Authority
CH
Switzerland
Prior art keywords
production
dye
indigoid dye
methyl
blackish
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 CH178120A publication Critical patent/CH178120A/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
    • C09B7/00—Indigoid dyes
    • C09B7/06—Indone-thionapthene indigos

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Coloring (AREA)

Description

  

      Zusatzpatent    zum Hauptpatent Nr. 176362.    Verfahren zur Herstellung eines     indigoiden        Farbstoffes.       Es wurde gefunden, dass man einen     indi-          goiden    Farbstoff erhalten kann, wenn man  die reaktionsfähigen     a-Derivate    :des     4-Methyl-          7-ehlorisatins    mit     1.2-Naphththioindoxyl     kondensiert.  



  Der Farbstoff :der Formel  
EMI0001.0010     
    stellt :ein schwärzliches     Kristallpulver    dar,  das      & :ieh    in     konzentrierter    Schwefelsäure mit       grünblauer    Farbe löst und Baumwolle aus  oranger     Küpe    in sehr echten,     braunvioletten     Tönen färbt.  



  <I>Beispiel:</I>  19,6 Teile     4-Methyl-7-ehlorisatin    werden  durch     Erwärmen    mit 22 Teilen Phosphor  penta:chlorid in 30,0 Teilen Chlorbenzol in  das     4-Methyl-7-chlorieatin-a-e        hlorid    verwan  delt und mit einer bei 65 bis<B>70'</B> hergestell  ten     höaung    von 20 Teilen     1.2-Naphth-          thioindoxyl    in     600    Teilen Chlorbenzol ver-    einigt. Der als schwärzliches Kristallpulver  sich     ausseheidende    Farbstoff wird filtriert,  mit     Chlorbenzol,    sowie mit Alkohol gewa  schen und getrocknet.



      Additional patent to main patent No. 176362. Process for the production of an indigoid dye. It has been found that an indigoid dye can be obtained if the reactive α-derivatives of 4-methyl-7-chloroisatin are condensed with 1,2-naphththioindoxyl.



  The dye: the formula
EMI0001.0010
    represents: a blackish crystal powder which &: ieh dissolves in concentrated sulfuric acid with a green-blue color and dyes cotton from an orange vat in very real, brown-violet tones.



  <I> Example: </I> 19.6 parts of 4-methyl-7-ehlorisatin are converted into 4-methyl-7-chlorieatine-ae chloride by heating with 22 parts of phosphorus penta: chloride in 30.0 parts of chlorobenzene and combined with a concentration of 20 parts of 1,2-naphthioindoxyl in 600 parts of chlorobenzene, produced at 65 to 70 '. The dye, which separates out as blackish crystal powder, is filtered, washed with chlorobenzene and alcohol and dried.

Claims (1)

PATENTANSPRUCF1 Verfahren zur Herstellung eines indi- goi.den Farbstoffes, :dadurch gekennzeichnet, dass man :die reaktionsfähigen a-Derivate des 4-Methyl-7-chlorisa--Uns mit 1.2-Naphth- thio:indoxyl kondensiert. PATENT CLAIM1 Process for the production of an indiggoi.den dye: characterized in that: the reactive a-derivatives of 4-methyl-7-chlorisa - Uns are condensed with 1,2-naphth-thio: indoxyl. Der Farbstoff der Formel EMI0001.0037 stellt ein schwärzliches Kristallpulver dar, das sich in konzentrierter Schwefelsäure mit grünblauer Farbe löst und Baumwolle aus oranger Küpe in sehr echten; braunvioletten Tönen färbt. The dye of the formula EMI0001.0037 represents a blackish crystal powder that dissolves in concentrated sulfuric acid with a green-blue color and cotton from an orange vat in very real ones; brown-purple tones.
CH178120D 1934-04-20 1934-04-20 Process for the production of an indigoid dye. CH178120A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH178120T 1934-04-20
CH176362T 1934-04-20

Publications (1)

Publication Number Publication Date
CH178120A true CH178120A (en) 1935-06-30

Family

ID=25719844

Family Applications (1)

Application Number Title Priority Date Filing Date
CH178120D CH178120A (en) 1934-04-20 1934-04-20 Process for the production of an indigoid dye.

Country Status (1)

Country Link
CH (1) CH178120A (en)

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