CH119147A - Process for the preparation of an anthracene derivative. - Google Patents

Process for the preparation of an anthracene derivative.

Info

Publication number
CH119147A
CH119147A CH119147DA CH119147A CH 119147 A CH119147 A CH 119147A CH 119147D A CH119147D A CH 119147DA CH 119147 A CH119147 A CH 119147A
Authority
CH
Switzerland
Prior art keywords
anthracene
anthracene derivative
preparation
red
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 CH119147A publication Critical patent/CH119147A/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)

Description

  

      Zusatzpatent    zum Hauptpatent Nr. 103648.    Verfahren zur Herstellung eines     Anthracenderivates.       Es wurde gefunden, dass man ein neues       Anthracenderivat,    das 2,1 -     Anthracenoxy-          thiophen,    erhält, wenn man die     2,1-Anthra-          centhioglykolkarbonsäure    mit Kondensa  tionsmitteln behandelt.  



  Das     2,1-Anthracenoxythiophen    bildet ein  gelbes Pulver, das sich in Schwefelsäure zu  nächst mit roter, dann mit braunroter Farbe  löst.. Auf Zusatz von Wasser fällt es wie  der in Form gelber Flocken aus. Es ist ein  wertvolles Ausgangsmaterial zur Herstel  lung von     Farbstoffen.     



  <I>Beispiel:</I>  1 Teil 2,1 -     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     MTasser,    kocht  auf und filtriert die als hellbraune Flok-         ken    abgeschiedene     Azetylverbindung    des     1,2-          Anthracenoxythiophens.    Diese wird dann  durch Erwärmen mit Alkali in wässeriger  oder alkoholischer Suspension     bezw.    Lösung  verseift.



      Additional patent to main patent no. 103648. Process for the production of an anthracene derivative. It has been found that a new anthracene derivative, the 2,1-anthracene oxy-thiophene, is obtained if the 2,1-anthracenthioglycolic acid is treated with condensation agents.



  The 2,1-anthracene oxythiophene forms a yellow powder that dissolves in sulfuric acid first with a red, then with a brownish-red color. When water is added, it precipitates like yellow flakes. It is a valuable starting material for the manufacture of dyes.



  <I> Example: </I> 1 part 2.1 anthracene thioglycol carbonic acid is carefully warmed up with 0.2 part dehydrated sodium acetate in 5 parts acetic anhydride until the carbonic acid development has stopped.

   The acetic anhydride is then distilled off in vacuo, the residue is poured into M water, the mixture is boiled and the acetyl compound of 1,2-anthracene oxythiophene 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 2,1-Anthracenoxy- thiophens, dadurch gekennzeichnet, dass die 2,1 - Anthracenthioglykolkarbonsäure mit Kondensationsmitteln behandelt wird. Das 2,1-Anthracenoxythiophen bildet ein gelbes Pulver, das sich in Schwefelsäure zu nächst mit roter, dann mit braunroter Farbe löst. Auf Zusatz von Wasser fällt es wie der in Form gelber Flocken aus. ' Es ist ein wertvolles Ausgangsmaterial zur Herstel- lung von Farbstoffen. PATENT CLAIM: Process for the production of a new anthracene derivative, the 2,1-anthracenoxy thiophene, characterized in that the 2,1-anthracene thioglycolic acid is treated with condensing agents. The 2,1-anthracene oxythiophene forms a yellow powder that dissolves in sulfuric acid initially with a red, then with a brownish-red color. When water is added, it precipitates out in the form of yellow flakes. 'It is a valuable starting material for the manufacture of dyes.
CH119147D 1923-01-24 1925-03-18 Process for the preparation of an anthracene derivative. CH119147A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH103648T 1923-01-24
CH119147T 1925-03-18

Publications (1)

Publication Number Publication Date
CH119147A true CH119147A (en) 1927-03-01

Family

ID=25706526

Family Applications (1)

Application Number Title Priority Date Filing Date
CH119147D CH119147A (en) 1923-01-24 1925-03-18 Process for the preparation of an anthracene derivative.

Country Status (1)

Country Link
CH (1) CH119147A (en)

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