CH131500A - Process for the preparation of a dye intermediate of the benzanthrone series. - Google Patents

Process for the preparation of a dye intermediate of the benzanthrone series.

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Publication number
CH131500A
CH131500A CH131500DA CH131500A CH 131500 A CH131500 A CH 131500A CH 131500D A CH131500D A CH 131500DA CH 131500 A CH131500 A CH 131500A
Authority
CH
Switzerland
Prior art keywords
preparation
dye intermediate
bzl
sulfide
benzanthrone series
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 CH131500A publication Critical patent/CH131500A/en

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Description

  

  Verfahren zur Darstellung eines     Farbstoffzwischenproduktes    der     Benzanthronreihe.       Gegenstand -dieser Erfindung ist ein     Ver-        ehinonylamino    - Bz 1- Bz 1' -     benzauthronyl-          fahren    zur Darstellung eines     Di-a-antlira-    Sulfids: .  
EMI0001.0008     
    welches dadurch gekennzeichnet ist, dass  man 6 .     6'-Diamino-Bz        1'-benzanthronylsulfi:d     mit     a-Chloranthraehinon    bei höherer Tem  peratur kondensiert.

           Beispiel:       In 50 Gewichtsteile     Nitrobenzol    werden       :@        C        T        (,-,vielitsteile        6.        6'-1)iamino-Bzl-Bzl'-benz-          anthronyIsulfid.    6 Gewichtsteile     a-Chloran-          thrachinon,    4 Gewichtsteile wasserfreies Iia-         liumkarbonat    und 0,2 Gewichtsteile     Kupfer-          ehlori@d    verrührt.

   Dieses Gemisch wird lang  sam auf 180 bis 190   erhitzt und bei dieser  Temperatur belassen, bis sich keine Aus  gangsmaterialien mehr nachweisen lassen.  Nach dem Erkalten wird abgesaugt, mit       Aethylalkohol    zur Entfernung des Lösungs  mittels und mit Wasser zur Beseitigung der  Salze gewaschen. Es     hinterbleibt    das     Di-a-          anthraehinony        lamino    -     Bz-1    - Bz 1' - benzan-           thronylsulfid    als ein rotbraunes Pulver, das  sich in konzentrierter Salzsäure mit grüner  Farbe löst.



  Process for the preparation of a dye intermediate of the benzanthrone series. The subject of this invention is a ver ehinonylamino - Bz 1- Bz 1 '- benzauthronyl- drive for the preparation of a di-a-antlira sulfide:.
EMI0001.0008
    which is characterized by the fact that 6. 6'-Diamino-Bz 1'-benzanthronylsulfi: d condensed with a-chloranthraehinone at a higher temperature.

           Example: In 50 parts by weight of nitrobenzene: @ C T (, -, many parts 6. 6'-1) iamino-Bzl-Bzl'-benz-anthronyisulfide. 6 parts by weight of a-chloranothrachinone, 4 parts by weight of anhydrous iialium carbonate and 0.2 part by weight of copper-ehlori®d were stirred.

   This mixture is slowly heated to 180 to 190 and left at this temperature until no more starting materials can be detected. After cooling, it is filtered off with suction, washed with ethyl alcohol to remove the solvent and with water to remove the salts. What remains is the di-a-anthraehinony lamino - Bz-1 - Bz 1 '- benzanthronyl sulfide as a red-brown powder that dissolves in concentrated hydrochloric acid with a green color.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines Di-a- anthrachinonylamino - Bz l - Bz 1' - benzan- thronylsulfids, dadurch gekennzeichnet, dass man 6.6'-Diamirio-Bzl -Bzl'-benzanthronylsul- fid mit a-Chloranthrachinon bei höhererTem- peratur kondensiert. Das Kondensationspro dukt stellt ein wertvolles Zwischenprodukt für die Herstellung von Farbstoffen dar. PATENT CLAIM: Process for the preparation of a di-a-anthraquinonylamino-Bz l-Bz 1'-benzanthronyl sulfide, characterized in that 6,6'-diamirio-Bzl -Bzl'-benzanthronyl sulfide is condensed with a-chloranthraquinone at a higher temperature . The condensation product is a valuable intermediate product for the manufacture of dyes. Es ist ein rotbraunes Pulver, das sich in kon zentrierter Schwefelsäure mit grüner Farbe löst. It is a red-brown powder that dissolves in concentrated sulfuric acid with a green color.
CH131500D 1926-08-02 1927-08-01 Process for the preparation of a dye intermediate of the benzanthrone series. CH131500A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE131500X 1926-08-02
CH130151T 1927-08-01

Publications (1)

Publication Number Publication Date
CH131500A true CH131500A (en) 1929-02-15

Family

ID=25711369

Family Applications (1)

Application Number Title Priority Date Filing Date
CH131500D CH131500A (en) 1926-08-02 1927-08-01 Process for the preparation of a dye intermediate of the benzanthrone series.

Country Status (1)

Country Link
CH (1) CH131500A (en)

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