CH119148A - Process for the preparation of an anthracene derivative. - Google Patents

Process for the preparation of an anthracene derivative.

Info

Publication number
CH119148A
CH119148A CH119148DA CH119148A CH 119148 A CH119148 A CH 119148A CH 119148D A CH119148D A CH 119148DA CH 119148 A CH119148 A CH 119148A
Authority
CH
Switzerland
Prior art keywords
anthracene
oxythiophene
anthracene derivative
preparation
brown
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 CH119148A publication Critical patent/CH119148A/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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)

Description

  

  <B>Zusatzpatent</B> zum Hauptpatent Nr. 103648.    Verfahren zur Herstellung eines     Anthracenderivates.     0    Es wurde gefunden, dass man ein neues       Anthracenderivat,    das 1,2 -     Anthracenoxy-          thiophen,    erhält, wenn man die     1,2-Anthra-          centhioglykolkarbonsäure    mit Kondensations  mitteln behandelt.  



  Das     1,2-Anthracenoxythiophen    bildet ein  gelbliches Pulver, das sich in Schwefelsäure  zunächst mit blauroter, dann mit braunroter  Farbe löst. Auf Zusatz von Wasser fällt es  wieder in Form brauner Flocken aus. Es  ist ein wertvolles Ausgangsmaterial zur Her  "tellung von Farbstoffen.    <I>Beispiel</I>    1 Teil 1,2 -     Anthracenthioglykolkarbon-          säure    wird mit 0,2 Teilen entwässertem Na  triumacetat in 5 Teilen     Essigsäureanhydrid     vorsichtig erwärmt, bis die     Kohlensäureent-          wicklung    aufgehört hat.

   Hierauf destilliert  man das     Essigsäureanhydrid    im Vakuum  ab, giesst den Rückstand in Wasser, kocht  auf und filtriert die als hellbraune Flocken    abgeschiedene     Azetylverbindung    des     1,2-          Anthracenoxythiophens.    Diese wird dann  durch Erwärmen mit Alkali in wässeriger  oder alkoholischer Suspension     bezw.    Lösung  verseift. .



  <B> Additional patent </B> to main patent no. 103648. Process for the production of an anthracene derivative. It has been found that a new anthracene derivative, the 1,2-anthracene oxythiophene, is obtained if the 1,2-anthracene thioglycolic acid is treated with condensation agents.



  The 1,2-anthracene oxythiophene forms a yellowish powder that dissolves in sulfuric acid first with a blue-red, then with a brown-red color. When water is added, it precipitates again in the form of brown flakes. It is a valuable starting material for the production of dyes. <I> Example </I> 1 part 1,2 - anthracene thioglycol carbonic acid is carefully heated with 0.2 part dehydrated sodium acetate in 5 parts acetic anhydride until carbonation develops has stopped.

   The acetic anhydride is then distilled off in vacuo, the residue is poured into water, boiled and the acetyl compound of 1,2-anthracene oxythiophene, which is deposited as light brown flakes, is filtered off. This is then BEZW by heating with alkali in aqueous or alcoholic suspension. Saponified solution. .

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen Anthracenderivates, des 1,2 - Anthracenoxy- thiophens, dadurch gekennzeichnet, dass die 1,2 - Anthracenthioglykolkarbonsäure mit Kondensationsmitteln behandelt wird. Das 1;2-Anthracenoxythiophen bildet ein gelbliches Pulver, das sich in Schwefelsäure zunächst mit blauroter, dann mit braunroter Farbe löst. Auf Zusatz von Wasser fällt es wieder in Form brauner Flocken aus. Es ist ein wertvolles Ausgangsmaterial zur Her stellung von Farbstoffen. PATENT CLAIM: Process for the production of a new anthracene derivative, the 1,2 - anthracene oxythiophene, characterized in that the 1,2 - anthracene thioglycolic acid is treated with condensing agents. The 1; 2-anthracene oxythiophene forms a yellowish powder that dissolves in sulfuric acid first with a blue-red, then with a brown-red color. When water is added, it precipitates again in the form of brown flakes. It is a valuable starting material for the manufacture of dyes.
CH119148D 1923-01-24 1925-03-18 Process for the preparation of an anthracene derivative. CH119148A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH103648T 1923-01-24
CH119148T 1925-03-18

Publications (1)

Publication Number Publication Date
CH119148A true CH119148A (en) 1927-03-01

Family

ID=25706527

Family Applications (1)

Application Number Title Priority Date Filing Date
CH119148D CH119148A (en) 1923-01-24 1925-03-18 Process for the preparation of an anthracene derivative.

Country Status (1)

Country Link
CH (1) CH119148A (en)

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