AT51203B - Process for the preparation of β-β-dianthraquinonylureas. - Google Patents

Process for the preparation of β-β-dianthraquinonylureas.

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Publication number
AT51203B
AT51203B AT51203DA AT51203B AT 51203 B AT51203 B AT 51203B AT 51203D A AT51203D A AT 51203DA AT 51203 B AT51203 B AT 51203B
Authority
AT
Austria
Prior art keywords
dianthraquinonylureas
preparation
desc
dianthraquinonylurea
aminoanthraquinone
Prior art date
Application number
Other languages
German (de)
Original Assignee
Hoechst 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 Hoechst Ag filed Critical Hoechst Ag
Application granted granted Critical
Publication of AT51203B publication Critical patent/AT51203B/en

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

Description

  

   <Desc/Clms Page number 1> 
 



  Verfahren zur Herstellung von ss-ss-Dianthrachinonylharnstoffen. 



   In weiterer Ausbildung des Verfahrens des Stammpatentes Nr. 47522 wurde gefunden, dass, wenn man 2 Mol. ss-Aminoanthrachinon mit 1 Mol. Chlorkohlensäureäthyl- äther in einem hochsiedenden   Lösungsmittel wie   z. B. Naphtalin, erhitzt, man direkt den ss-ss-Dianthrachinonylharnstoff in glatter Weise in   einer Operation erhält. Die Reaktion   verläuft so, dass sich zunächst das in der deutschen Patentschrift Nr 16741 ()   beschriebene   ss-Anthrachinonylurethan bildet, welches sich gemäss den Angaben der   Stammpatentschrift   Nr. 47522 mit einem weiteren   Molekül -Aminoanthrachinon   zum ss-ss-Dianthrachinonylharnstoff umsetzt. 
 EMI1.1 
 



   Verwendet man statt Naphtalin als Lösungsmittel Nitrobenzol, so muss entsprechend länger erhitzt werden. 

**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



   <Desc / Clms Page number 1>
 



  Process for the preparation of ss-ss-dianthraquinonylureas.



   In a further development of the process of the parent patent no. 47522 it was found that if 2 mol. Ss-aminoanthraquinone with 1 mol. Chlorocarbonic acid ethyl ether in a high-boiling solvent such as. B. naphthalene heated, the ss-ss-dianthraquinonylurea is obtained directly in one operation in a smooth manner. The reaction proceeds in such a way that the ss-anthraquinonyl urea described in German patent specification No. 16741 () is initially formed, which, according to the information in parent patent specification No. 47522, reacts with another molecule -aminoanthraquinone to form ss-ss-dianthraquinonylurea.
 EMI1.1
 



   If nitrobenzene is used as a solvent instead of naphthalene, the heating must be correspondingly longer.

** WARNING ** End of DESC field may overlap beginning of CLMS **.

Claims (1)

PATENT-ANSPRUCH : EMI1.2 **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. PATENT CLAIM: EMI1.2 ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT51203D 1909-02-01 1910-02-07 Process for the preparation of β-β-dianthraquinonylureas. AT51203B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE47522X 1909-02-01
DE51203X 1909-03-01

Publications (1)

Publication Number Publication Date
AT51203B true AT51203B (en) 1911-12-11

Family

ID=25749055

Family Applications (1)

Application Number Title Priority Date Filing Date
AT51203D AT51203B (en) 1909-02-01 1910-02-07 Process for the preparation of β-β-dianthraquinonylureas.

Country Status (1)

Country Link
AT (1) AT51203B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006006301A1 (en) 2006-02-10 2007-08-23 Hiwin Technologies Corp. Load-bearing elevator spindle attached to overhead frame hangs from locknut with rounded lower face

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006006301A1 (en) 2006-02-10 2007-08-23 Hiwin Technologies Corp. Load-bearing elevator spindle attached to overhead frame hangs from locknut with rounded lower face

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