CH154719A - Process for the preparation of an anthanthrone derivative. - Google Patents

Process for the preparation of an anthanthrone derivative.

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Publication number
CH154719A
CH154719A CH154719DA CH154719A CH 154719 A CH154719 A CH 154719A CH 154719D A CH154719D A CH 154719DA CH 154719 A CH154719 A CH 154719A
Authority
CH
Switzerland
Prior art keywords
preparation
derivative
anthanthrone
bromine
anthanthrone derivative
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 CH154719A publication Critical patent/CH154719A/en

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

      Verfahren    zur Darstellung 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 erhältlichen       Monooxyanthanthrons    erhalten werden kann,  mit einem     bromierend    wirkenden Mittel be  handelt.  



  Es wurde nun gefunden, dass man eben  falls ein sehr wertvolles     Anthanthronderivat     erhalten kann, wenn man das     Äthoxyanthan-          thron,    das durch     Äthylieren    des nach dem  Verfahren des Schweiz. Patentes Nr. 143992  erhältlichen     Monooxyanthanthrons    erhalten  werden kann, mit einem     bromierend    wirken  den Mittel bis zur Aufnahme eines Atoms  Brom behandelt.  



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



  <I>Beispiel:</I>  10 Teile     Äthoxyanthanthron    werden, in  100 Teilen Nitrobenzol suspendiert, bei 160   C  nach Zugabe von 0,1 Teil Jod mit 10 Teilen  Brom versetzt und solange unter Rühren bei  <B>1600</B> C gehalten, bis kein unverändertes Aus  gangsmaterial mehr     nachweisbar    ist. Man  arbeitet darauf in der üblichen Weise auf.



      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 according to the method of Switzerland. Patent No. 143992 available Monooxyanthanthrons can be obtained with a brominating agent be.



  It has now been found that a very valuable anthanthrone derivative can also be obtained by using ethoxyanthan thron, which is obtained by ethylating according to the Swiss method. Patent No. 143992 available Monooxyanthanthrons can be obtained with a brominating effect the agent treated up to the absorption of an atom of bromine.



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



  <I> Example: </I> 10 parts of ethoxyanthanthrone are suspended in 100 parts of nitrobenzene, 10 parts of bromine are added at 160.degree. C. after 0.1 part of iodine has been added and, while stirring, at <B> 1600 </B> C. held until no more unchanged starting material is detectable. You work on it in the usual way.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines Anthan- thronderivates, dadurch gekennzeichnet, dass man Äthoxyanthanthron, das durch Äthylie- reu des nach dem Verfahren des Schweiz. Patentes Nr. 143992 erhältlichen Monooxy- anthanthrons erhalten werden kann mit einem bromierend wirkenden Mittel bis zur Auf nahme eines Atoms Brom behandelt. Der neue Farbstoff löst sich in konzen trierter Schwefelsäure mit grüner Farbe und liefert aus violettroter Küpe auf Baumwolle echte blaustichig rote Färbungen. PATENT CLAIM: A method for the preparation of an anthropothrone derivative, characterized in that ethoxyanthanthrone, which is produced by Äthylie- reu according to the Swiss method. Patent No. 143992 available monooxyanthanthrone can be treated with a brominating agent until an atom of bromine is absorbed. The new dye dissolves in concentrated sulfuric acid with a green color and, from a violet-red vat on cotton, produces real blue-tinged red dyeings.
CH154719D 1928-10-19 1929-09-04 Process for the preparation of an anthanthrone derivative. CH154719A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE154719X 1928-10-19
CH151327T 1929-09-04

Publications (1)

Publication Number Publication Date
CH154719A true CH154719A (en) 1932-05-15

Family

ID=25715792

Family Applications (1)

Application Number Title Priority Date Filing Date
CH154719D CH154719A (en) 1928-10-19 1929-09-04 Process for the preparation of an anthanthrone derivative.

Country Status (1)

Country Link
CH (1) CH154719A (en)

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