CH111786A - Process for the production of a new intermediate product in the dye industry. - Google Patents

Process for the production of a new intermediate product in the dye industry.

Info

Publication number
CH111786A
CH111786A CH111786DA CH111786A CH 111786 A CH111786 A CH 111786A CH 111786D A CH111786D A CH 111786DA CH 111786 A CH111786 A CH 111786A
Authority
CH
Switzerland
Prior art keywords
intermediate product
production
new intermediate
dye industry
des
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 CH111786A publication Critical patent/CH111786A/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
    • C09B7/10—Bis-thionapthene indigos

Landscapes

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

Description

  

  Verfahren zur Herstellung eines neuen Zwischenproduktes der     Farbstoffindastrie.       Es wurde gefunden,     dass    man ein neues       Zwisclienprodukt,    das     p-Dimetliylaminoanil     des     2,3-Anthrachinonthioisatins,    erhält, wenn  man das     2,3-Anthrar-hinonoxythio-phen        (ef.     Patent     Nr.   <B>103648)</B> mit     Nitrosodimethylani-          lin    kondensiert.

   Das     p-Dimethylaminoanil       des,     2,3-Anthra3chinonthioisatins    bildet blaue,       brünzeglänzende    Kristalle, die in niedrig     sie-          Uenden    Lösungsmitteln sehr schwer     löslidli     sind. Es löst sich in konzentrierter Schwefel  säure mit gelber Farbe.  



  Der Reaktionsverlauf wird durch folgende  Gleichung veranschaulicht:  
EMI0001.0017     
    <I>Beispiel:</I>  <B>28</B> Teile     #,3   <B>-</B>     Anthrachinonoxythiophen,     <B>280</B> Teile Alkohol,<B>280</B> Teile     Wass#er    und  <B>13</B> Teile<B>30</B>     '/oige    Natronlauge werden zusam  men auf 40'     erwäxmt,    mit einer Lösung von  <B>16</B> Teilen     Nitrosoclimethylanilin    in<B>100</B> Tei  len Alkohol versetzt und eine Stunde bei die  ser     Temf   <B>n</B>       peratur    gerührt.

   Hierauf filtriert  man das in 'blauen Kristallen abgeschiedene         p-Dimethyla,minoa-nil    des     2,3-Anthrachinon-          thi-oisatins.  



  Process for the preparation of a new intermediate product in the dye industry. It has been found that a new intermediate product, the p-dimethylaminoanil of 2,3-anthraquinone thioisatin, is obtained if the 2,3-anthrarquinone oxythiophene (ef. Patent no. 103648) is obtained condensed with nitrosodimethylaniline.

   The p-dimethylaminoanil des, 2,3-anthraquinone thioisatin forms blue, shiny crystals which are very difficult to dissolve in low-viscosity solvents. It dissolves in concentrated sulfuric acid with a yellow color.



  The course of the reaction is illustrated by the following equation:
EMI0001.0017
    <I> Example: </I> <B> 28 </B> parts #, 3 <B> - </B> anthraquinone oxythiophene, <B> 280 </B> parts alcohol, <B> 280 </B> Parts of water and <B> 13 </B> parts of <B> 30 </B> '/ o sodium hydroxide solution are heated together to 40' with a solution of <B> 16 </B> parts of nitrosoclimethylaniline in < B> 100 </B> parts of alcohol are added and the mixture is stirred for one hour at this temf <B> n </B> temperature.

   The p-dimethyla, minoa-nil of 2,3-anthraquinone-thi-oisatin, which has separated out in blue crystals, is then filtered off.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neueil Zwisclienproduktes, des<B>p -</B> Dimethylamina- anils des<B>2,3 -</B> A-uthrachinonthiosatins, da durch gekennzeichnet, dass man das 2,3-An- thra#c'hinonoxythiophen mit Nitrosodimethyl- anilin kondensiert. PATENT CLAIM: Process for the production of a new intermediate product, the <B> p - </B> Dimethylamin anil des <B> 2,3 - </B> A-uthrachinonthiosatins, characterized in that the 2,3-An - thra # c'hinonoxythiophene condensed with nitrosodimethyl aniline. Das p-Dimethylamino- anil des -'),3-Anthrachinonthioisatins bilrl#---t blaue, bronzeglänzende Kristalle, die in niedri.- siedentlen Lösun.-Ismitteln sehr schwer löslieh sind. Es löst sich in ko-nzentrierter Schwefelsläure mit -",clber Farbe. The p-dimethylamino-anil des - '), 3-anthraquinone thioisatins bilrl # --- t blue, bronze-shining crystals, which are very difficult to dissolve in low-boiling solvents. It dissolves in concentrated sulfuric acid with - ", over color.
CH111786D 1926-03-23 1924-06-21 Process for the production of a new intermediate product in the dye industry. CH111786A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH111786T 1926-03-23

Publications (1)

Publication Number Publication Date
CH111786A true CH111786A (en) 1925-09-16

Family

ID=4370842

Family Applications (1)

Application Number Title Priority Date Filing Date
CH111786D CH111786A (en) 1926-03-23 1924-06-21 Process for the production of a new intermediate product in the dye industry.

Country Status (1)

Country Link
CH (1) CH111786A (en)

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