CH178121A - Process for the production of an indigoid dye. - Google Patents

Process for the production of an indigoid dye.

Info

Publication number
CH178121A
CH178121A CH178121DA CH178121A CH 178121 A CH178121 A CH 178121A CH 178121D A CH178121D A CH 178121DA CH 178121 A CH178121 A CH 178121A
Authority
CH
Switzerland
Prior art keywords
dye
production
indigoid dye
chloro
indigoid
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 CH178121A publication Critical patent/CH178121A/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
    • C09B7/08—Other indole-indigos

Landscapes

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

Description

  

  Zusatzpatent zum Hauptpatent     Nr.   <B>176363.</B>    Verfahren zur Herstellung eines     indigoiden    Farbstoffes.         E.s    wurde gefunden,     dass    man einen     indi-          (1-oiden    Farbstoff     erhaIten    kann, wenn man       t'     die reaktionsfähigen     a-Derivate    des 4.     7-          el          Dim(-thyl-5-bromisatins    mit     4-Chlor-l-oxy-          naphthalin    kondensiert.  



  Der Farbstoff der Formel  
EMI0001.0015     
    ,stellt ein dunkelblaues     kristallinisehes,    Pul  ver dar, das sich in konzentrierter     Schwefel-          eäure    mit grüner Farbe löst und beim     Be-          druaken    der Baumwolle sehr eichte blaue  Töne -ergibt.  



  <I>Beispiel:</I>       25,4    Teile     5-Bro-m-4   <B>.</B>     7-dimei-hylisatin     werden     #durch    Erwärmen mit<B>300</B> Teilen         Chlarbenzol    und 22 Teilen     Phosph#orpen-          tachlorid.in    das     5-Bro-ni-4.        7-dimethylisatin-          a-chlorid    übergeführt und mit einer bei 45  bis<B>50 '</B> hergestellten Lösung von<B>18</B> Teilen       4-Chlo#r-l-oxyna,phtlialin        in500Teilen    Chlor  benzol vereinigt.

   Der als     dunkeIblaues    Kri  stallpulver sieh ausscheidende Farbstoff wird  filtriert, mit Chlorbenzol, sowie mit Alkohol  gewaschen und     getroaknet.     



  Zu dem selben Farbstoffe gelangt man,  wenn statt in     chlorbenzolischer    Lösung, in  wässerigem Medium     o-earb#eitet    wird, oder  wenn an     Stelledes    4.     7-Dim#ethyl-5-bramie#a-          tin-a-#chlo-ri#d6-    das, 4.     7-Dim-etllyl-5-bromisa-          i-,in-a-a,nilid    in     Essigsäureanhydrid    mit     4-          Chlor-l-oxyna,phthalin    erhitzt wird.



  Additional patent to main patent no. <B> 176363. </B> Process for the production of an indigoid dye. It has been found that an indi- (1-oiden dye can be obtained if one t 'the reactive a-derivatives of 4 7-el dim (-thyl-5-bromoisatin with 4-chloro-1-oxynaphthalene condensed.



  The dye of the formula
EMI0001.0015
    , is a dark blue, crystalline powder that dissolves in concentrated sulfuric acid with a green color and produces very light blue tones when the cotton is printed.



  <I> Example: </I> 25.4 parts of 5-Bro-m-4 <B>. </B> 7-dimei-hylisatin are #by heating with <B> 300 </B> parts of chlorobenzene and 22 Divide Phosphorpen- tachlorid.in the 5-Bro-ni-4. 7-dimethylisatin-a-chloride and combined with a solution prepared at 45 to <B> 50 '</B> of <B> 18 </B> parts of 4-chloro-1-oxyna, phtlialin in 500 parts of chlorobenzene.

   The dye which separates out as a dark blue crystal powder is filtered, washed with chlorobenzene and with alcohol and dried.



  The same dyestuff is obtained if instead of in a chlorobenzene solution, o-earb # is processed in an aqueous medium, or if instead of 4. 7-Dim # ethyl-5-bramie # a- tin-a- # chlo-ri # d6- das, 4. 7-dim-etllyl-5-bromisa- i-, in-aa, nilid in acetic anhydride with 4-chloro-l-oxyna, phthalene is heated.

Claims (1)

PATENTANSPRUCII: Verfahren zur H.erstellung eines. indigoi- den Farbstoffes, dadurch gekennzeichnet, dass man die reaklionsfähigen a-Derivate des 4. 7-Dimethyl-5-bramisatins mit 4-Chlor-l- oxynaplitlia-Iin kondensiert. PATENT CLAIM: Method for creating a. indigoid dye, characterized in that the reactive α-derivatives of 4, 7-dimethyl-5-bramisatin are condensed with 4-chloro-l-oxynaplitlia-Iin. Der Farbstoff EMI0002.0004 stellt ein dunkelblaues, kristallinisches Pul ver dar, das sieli in konzentrierter Schwefel säure mit grün-er Farbe löst und beim Be- druAen der Baumwolle tsehr echte blaue Töne ergibt. The dye EMI0002.0004 is a dark blue, crystalline powder that dissolves in concentrated sulfuric acid with a greenish-green color and produces very real blue tones when the cotton is printed.
CH178121D 1934-04-21 1934-04-21 Process for the production of an indigoid dye. CH178121A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH178121T 1934-04-21
CH176363T 1934-04-21

Publications (1)

Publication Number Publication Date
CH178121A true CH178121A (en) 1935-06-30

Family

ID=25719846

Family Applications (1)

Application Number Title Priority Date Filing Date
CH178121D CH178121A (en) 1934-04-21 1934-04-21 Process for the production of an indigoid dye.

Country Status (1)

Country Link
CH (1) CH178121A (en)

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