CH154718A - Process for the preparation of an anthanthrone derivative. - Google Patents

Process for the preparation of an anthanthrone derivative.

Info

Publication number
CH154718A
CH154718A CH154718DA CH154718A CH 154718 A CH154718 A CH 154718A CH 154718D A CH154718D A CH 154718DA CH 154718 A CH154718 A CH 154718A
Authority
CH
Switzerland
Prior art keywords
preparation
derivative
methoxyanthanthrone
anthanthrone
sulfuric acid
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellsc Farbenindustrie
Original Assignee
Ig Farbenindustrie Ag
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 Ig Farbenindustrie Ag filed Critical Ig Farbenindustrie Ag
Publication of CH154718A publication Critical patent/CH154718A/en

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Description

  

  Verfahren zur     Darstellting    eines     Anthanthronderivates.       Im Hauptpatent ist ein Verfahren zur  Darstellung eines     Anthanthronderivates    be  schrieben, welches dadurch gekennzeichnet  ist,     dass        Man        Methoxyanthanthron,    das durch       Methylieren    des nach dem Verfahren des       schweiz.    Patentes     Nr.    143992     erhältlic          Monooxyanthanthrons    erhalten werden     ka     mit einem     bromierend    wirkenden Mittel be  handelt.  



  Es wurde nun gefunden,     dass    man eben  falls ein sehr wertvolles     Anthanthronderivat     erhalten kann, wenn     maiiMethoxyanthanthron,     das durch     Methylieren    des nach dem Ver  fahren des     schweiz.    Patentes     Nr.    143992 er  hältlichen     Monooxyanthanthrons    erhalten     wer-      den kann, mit einem chlorierend wirkenden  Mittel bis zur Aufnahme eines Atoms Chlor  behandelt.  



  Der neue Farbstoff löst sich in konzen  trierter Schwefelsäure mit grüner Farbe und    liefert aus violetter     Küpe    auf Baumwolle  echte gelbrote Färbungen.  



  <I>Beispiel<B>1:</B></I>  In die Lösung von     33,6    Teilen     Methoxy-          anthanthron    in der zehnfachen Gewichts  menge     Chlorsullonsäure    oder konzentrierter  Schwefelsäure leitet man bei ungefähr<B>0 C</B>  solange Chlor ein, bis eine entnommene Probe  kein unverändertes Ausgangsmaterial mehr  enthält. Nach dem Verdünnen mit Schwefel  säure giesst man auf Eis, saugt ab und ar  beitet in der üblichen Weise auf.  



  <I>Beispiel 2:</I>  <B>10</B> Teile     Methoxyantbanthron    werden, in       der20-fachenMengeNitrobetizolangeschlänimt,     unter Rühren mit<B>15</B> Teilen     Sulfurychlorid     bei<B>600 C</B> versetzt. Nach zirka<B>1</B> Stunde ist  die     Chlorierung    beendet. Die Aufarbeitung  des Reaktionsproduktes geschieht entweder  durch Absaugen oder     Wasserdampfdestillation.  



  Process for the preparation of an anthanthrone derivative. In the main patent, a method for the preparation of an anthanthrone derivative is written, which is characterized in that methoxyanthanthrone, which is obtained by methylating the by the method of Switzerland. Patent No. 143992 obtainable Monooxyanthanthrons can be treated with a brominating agent.



  It has now been found that a very valuable anthanthrone derivative can also be obtained if methoxyanthanthrone is obtained by methylating it according to the Swiss method. Patent No. 143992 obtainable monooxyanthanthrone can be obtained treated with a chlorinating agent until one atom of chlorine is absorbed.



  The new dye dissolves in concentrated sulfuric acid with a green color and, from a violet vat on cotton, produces real yellow-red colorations.



  <I>Example<B>1:</B> </I> In the solution of 33.6 parts of methoxyanthanthrone in ten times the amount by weight of chlorosullonic acid or concentrated sulfuric acid is passed at about <B> 0 C </B> until a sample taken does not contain any unchanged starting material. After diluting with sulfuric acid, the mixture is poured onto ice, filtered off with suction and worked on in the usual way.



  <I> Example 2: </I> <B> 10 </B> parts of methoxyantbanthrone, in 20 times the amount of nitrobetizolan, are slimed with <B> 15 </B> parts of sulfuric chloride at <B> 600 C </B> while stirring offset. The chlorination has ended after about 1 hour. The reaction product is worked up either by suction filtration or by steam distillation.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Anthan- thronderivates, dadurch gekennzeichnet, dass man Methoxyanthanthron, das durch Methy- lieren des nach dem Verfahren des schweiz. Patentes Nr. 143992 erhältlichen Monooxy- anthanthrons erhalten werden kann, mit einem ohlorierend wirkenden Mittel bis zur Auf nahme eines Atoms Chlor behandelt. PATENT CLAIM: Process for the production of an anthropomorphic throne derivative, characterized in that methoxyanthanthrone, which is obtained by methylating according to the Swiss process Patent No. 143992 available Monooxy- anthanthrons can be obtained treated with a chlorinating agent until an atom of chlorine is absorbed. Der neue Farbstoff löst sich in konzen trierter Schwefelsäure mit grüner Farbe und liefert aus violetter Küpe auf Baumwolle echte gelbrote Färbungen. The new dye dissolves in concentrated sulfuric acid with a green color and, from a violet vat on cotton, produces real yellow-red colorations.
CH154718D 1928-10-19 1929-09-04 Process for the preparation of an anthanthrone derivative. CH154718A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE154718X 1928-10-19
CH151327T 1929-09-04

Publications (1)

Publication Number Publication Date
CH154718A true CH154718A (en) 1932-05-15

Family

ID=25715791

Family Applications (1)

Application Number Title Priority Date Filing Date
CH154718D CH154718A (en) 1928-10-19 1929-09-04 Process for the preparation of an anthanthrone derivative.

Country Status (1)

Country Link
CH (1) CH154718A (en)

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