CH119149A - Process for the preparation of an anthracene derivative. - Google Patents

Process for the preparation of an anthracene derivative.

Info

Publication number
CH119149A
CH119149A CH119149DA CH119149A CH 119149 A CH119149 A CH 119149A CH 119149D A CH119149D A CH 119149DA CH 119149 A CH119149 A CH 119149A
Authority
CH
Switzerland
Prior art keywords
anthraquinone
anthracene derivative
yellow
preparation
oxythiophene
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 CH119149A publication Critical patent/CH119149A/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
    • C09B5/00—Dyes with an anthracene nucleus condensed with one or more heterocyclic rings with or without carbocyclic rings
    • C09B5/24—Dyes with an anthracene nucleus condensed with one or more heterocyclic rings with or without carbocyclic rings the heterocyclic rings being only condensed with an anthraquinone nucleus in 1-2 or 2-3 position

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

  Verfahren zur Herstellung eines     Anthracenderivates.       Es wurde gefunden, dass man ein neues       Anthracenderivat,    das     2,1-Anthrachinonoxy-          thiophen,    erhält, wenn man die     2,1-Anthra-          chinonthioglykolkarbonsäure    mit Konden  sationsmitteln behandelt.  



  Das     2,1-Anthrachinonoxythiophen    bildet  ein grauviolett gefärbtes Pulver. Es ist mit       bräunlichgelber    Farbe in Schwefelsäure lös  lich und gibt mit     Hydrosulfit    und Natron  lauge eine gelborange     Küpe.    Es ist ein  wertvolles Ausgangsmaterial zur Herstel  lung von Farbstoffen.  



  <I>Beispiel:</I>  1 Teil     2,1-Anthrachinonthioglykolkarbon-          säure    wird mit 0,2 Teilen entwässertem Na  triumacetat in 5 Teilen     Essigsäureanhydrid     vorsichtig erwärmt, bis die Kohlensäure  entwicklung aufgehört hat.

   Hierauf destil  liert man das     Essigsäureanhydrid    im Va  kuum ab, giesst den Rückstand in Wasser,  kocht auf und filtriert die in gelben Flocken    ausgeschiedene     Azetylverbindung    des     2,1-          Anthrachinonoxythiophens.    Diese     wird    dann  durch Erwärmen mit Alkali in Wasser oder       Alkohol    verseift, wobei die oliv e     Azetylver-          bindung    in das     2,1-Anthrachinonoxythiophen     übergeht.



  Process for the preparation of an anthracene derivative. It has been found that a new anthracene derivative, the 2,1-anthraquinone oxythiophene, is obtained if the 2,1-anthraquinone thioglycolic acid is treated with condensation agents.



  The 2,1-anthraquinone oxythiophene forms a gray-violet colored powder. It is brownish-yellow in color and soluble in sulfuric acid, and with hydrosulphite and sodium hydroxide solution, it gives a yellow-orange vat. It is a valuable starting material for the manufacture of dyes.



  <I> Example: </I> 1 part of 2,1-anthraquinone thioglycolic acid is carefully heated with 0.2 part of dehydrated sodium acetate in 5 parts of acetic anhydride until the development of carbonic acid has stopped.

   The acetic anhydride is then distilled off in vacuo, the residue is poured into water, boiled and the acetyl compound of 2,1-anthraquinone oxythiophene which is precipitated in yellow flakes is filtered off. This is then saponified by heating with alkali in water or alcohol, the olive acetyl compound being converted into 2,1-anthraquinone oxythiophene.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen Anthracenderivates, des 2,1-Anthrachinon- oxythiöphens, dadurch gekennzeichnet, dass man die 2,1-Anthrachinonthioglykolkarbon- säure mit Kondensationsmitteln behandelt. Das 2,1-Anthrachinonoxythiophen bildet ein grauviolett gefärbtes Pulver. Es ist mit bräunlichgelber Farbe in Schwefelsäure lös lich und gibt mit Hydrosulfit und Natron lauge eine gelborange Küpe. Es ist ein wert volles Ausgangsmaterial zur Herstellung von Farbstoffen. PATENT CLAIM: Process for the production of a new anthracene derivative, the 2,1-anthraquinone oxythiophen, characterized in that the 2,1-anthraquinone thioglycol carbonic acid is treated with condensing agents. The 2,1-anthraquinone oxythiophene forms a gray-violet colored powder. It is brownish-yellow in color and soluble in sulfuric acid, and with hydrosulphite and sodium hydroxide solution, it gives a yellow-orange vat. It is a valuable starting material for the manufacture of dyes.
CH119149D 1923-01-24 1925-03-18 Process for the preparation of an anthracene derivative. CH119149A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH103648T 1923-01-24
CH119149T 1925-03-18

Publications (1)

Publication Number Publication Date
CH119149A true CH119149A (en) 1927-03-01

Family

ID=25706528

Family Applications (1)

Application Number Title Priority Date Filing Date
CH119149D CH119149A (en) 1923-01-24 1925-03-18 Process for the preparation of an anthracene derivative.

Country Status (1)

Country Link
CH (1) CH119149A (en)

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