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CH139379A - Process for the preparation of a nitrogenous vat dye of the benzanthrone series. - Google Patents

Process for the preparation of a nitrogenous vat dye of the benzanthrone series.

Info

Publication number
CH139379A
CH139379A CH139379DA CH139379A CH 139379 A CH139379 A CH 139379A CH 139379D A CH139379D A CH 139379DA CH 139379 A CH139379 A CH 139379A
Authority
CH
Switzerland
Prior art keywords
preparation
vat dye
nitrogenous
dye
vat
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 CH139379A publication Critical patent/CH139379A/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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Coloring (AREA)

Description

  

  Zusatzpatent zum Hauptpatent     Nr.   <B>120525.</B>    Verfahren zur Darstellung eines     stichstoffhaltigen        Küpenfarbstoffes     der     Benzanthronreihe.       In dem Hauptpatent     Nr.   <B>120525</B> ist ein  Verfahren zur Darstellung eines     Küpenfarb-          stoffes    beschrieben, bei dem     a-Anthrachinonyl-          amino-Bzl.Bzl'-benzanthi,onylstilfid    mit einem  alkalischen Kondensationsmittel, insbesondere  alkoholischem Alkali, behandelt wird.  



  Gegenstand dieses Zusatzpatentes ist ein  Verfahren zur Darstellung eines stickstoff  haltigen     Küpenfarbstoffes    der     Benzanthron-          reihe,    bei dem ein Kondensationsprodukt der  nachstehenden Formel-:  
EMI0001.0013     
    worin R ein organischer Rest mit weniger  als<B>17</B>     Kohlenstoffatomen    ist, mit alkalischen  Mitteln, insbesondere alkoholischem Alkali,  behandelt wird. Der an Schwefel gebundene  organische R der Formel tritt nicht mit in  das Endprodukt ein.  



  Der neue Farbstoff gibt mit Natronlauge       und        Hydrosulfit    eine blaue     Küpe,    aus der  die pflanzliche Faser in echten dunkelblauen  Tönen gefärbt wird, die die bemerkenswerte  Eigenschaft zeigen, beim Befeuchten mit  Wasser nicht nach rot umzuschlagen.  



  <I>Beispiel:</I>  <B>10</B> Teile     7(a-Antbrachinoilyl)-amino-Bzl-          thioki,esyl-benzanthron    (erhältlich zum Bei  spiel durch Kondensation von     7-Halogen-Bzl-          thiokresylbenzanthron    mit     a-Aminoanthrachi-          non)    werden mit 40 Teilen     Kaliumhydroxyd     und<B>25-30</B> Teilen Alkohol solange bei  <B>170-1800</B> verschmolzen, bis die     Farbstoff-          bildung    beendet ist. Nach dem Aufarbeiten  der Schmelze in der üblichen Weise, kann  der erhaltene Farbstoff durch Auskochen mit      hochsiedenden Lösungsmitteln, wie z. B. Ani  lin oder Nitrobenzol, noch gereinigt werden.



  Additional patent to the main patent no. <B> 120525. </B> Process for the preparation of a vat dye containing cues from the benzanthrone series. In the main patent no. <B> 120525 </B> a process for the preparation of a vat dye is described in which a-anthraquinonylamino-Bzl.Bzl'-benzanthi, onylstilfid is treated with an alkaline condensing agent, in particular alcoholic alkali becomes.



  The subject of this additional patent is a process for the preparation of a nitrogen-containing vat dye of the benzanthrone series, in which a condensation product of the following formula:
EMI0001.0013
    where R is an organic radical with fewer than 17 carbon atoms, is treated with alkaline agents, in particular alcoholic alkali. The organic R of the formula bonded to sulfur does not enter into the end product.



  With caustic soda and hydrosulfite, the new dye gives a blue vat from which the vegetable fibers are dyed in real dark blue tones, which have the remarkable property of not turning red when moistened with water.



  <I> Example: </I> <B> 10 </B> Parts 7 (a-Antbrachinoilyl) -amino-Bzl- thioki, esyl-benzanthrone (obtainable for example by condensation of 7-halo-Bzl-thiocresylbenzanthrone with α-Aminoanthraquinone) are fused with 40 parts of potassium hydroxide and <B> 25-30 </B> parts of alcohol at <B> 170-1800 </B> until the dye formation has ended. After working up the melt in the usual way, the dye obtained can be boiled with high-boiling solvents, such as. B. Ani lin or nitrobenzene, still to be cleaned.

Claims (1)

<B>PATENTANSPRUCH:</B> Verfahren zur Darstellung eines stick stoffhaltigen Küpenfarbstoffes der Benzarithron- reihe, dadurch gekennzeichnet, dass man ein Kondensationsprodukt der nachstehenden Formel<B>:</B> EMI0002.0005 worin R ein organischer Rest mit weniger als<B>17</B> Kohlenstoffatomen ist, der bei der Reaktion abgespalten wird und nicht in den Endstoff eintritt, mit alkalischen Alitteln be handelt. <B> PATENT CLAIM: </B> Process for the preparation of a nitrogen-containing vat dye of the benzarithrone series, characterized in that a condensation product of the following formula <B>: </B> EMI0002.0005 where R is an organic radical with fewer than 17 carbon atoms, which is split off during the reaction and does not enter the end product, treated with alkaline agents. Der neue Farbstoff gibt mit Natronlauge und Hydrosulfit eine blaue Küpe, aus der die pflanzliche Faser in echten dunkelblauen Tönen gefärbt wird, die die bemerkenswerte Eigenschaft zeigen, beim Befeuchten mit Wasser nicht nach rot umzuschlagen. With caustic soda and hydrosulfite, the new dye gives a blue vat from which the vegetable fibers are dyed in real dark blue tones, which have the remarkable property of not turning red when moistened with water.
CH139379D 1928-07-30 1928-07-30 Process for the preparation of a nitrogenous vat dye of the benzanthrone series. CH139379A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH139379T 1928-07-30
CH120525T 1929-08-01

Publications (1)

Publication Number Publication Date
CH139379A true CH139379A (en) 1930-04-15

Family

ID=25709475

Family Applications (1)

Application Number Title Priority Date Filing Date
CH139379D CH139379A (en) 1928-07-30 1928-07-30 Process for the preparation of a nitrogenous vat dye of the benzanthrone series.

Country Status (1)

Country Link
CH (1) CH139379A (en)

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