CH150184A - Process for the preparation of a vat dye of the benzanthrone pyrazole anthrone series. - Google Patents

Process for the preparation of a vat dye of the benzanthrone pyrazole anthrone series.

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Publication number
CH150184A
CH150184A CH150184DA CH150184A CH 150184 A CH150184 A CH 150184A CH 150184D A CH150184D A CH 150184DA CH 150184 A CH150184 A CH 150184A
Authority
CH
Switzerland
Prior art keywords
benzanthrone
preparation
pyrazole
pyrazole anthrone
vat dye
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 CH150184A publication Critical patent/CH150184A/en

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Description

  

  Verfahren zur Darstellung eines     giipenfarbstoffes    der     Benzanthronpyra        zolanthronrei(ie.       Gegenstand dieses     Zusatzpatentes    ist ein  Verfahren zur Darstellung eines     Küpenfarb-          stoffes    der     Benzanthronpyrazolanthronreihe,     welches dadurch gekennzeichnet ist, dass man  1 Molekül     Dichlorbenzanthronpyrazolanthron,     wie es durch     Chlorierung    von     Benzanthron-          pyrazolanthron        mittelst        Sulfurylchlorid    er  halten werden kann,

   in Gegenwart eines Lö  sungsmittels mit 1     Molekül        Aminobenzan-          thronpyrazolanthron,    erhältlich durch     Nitrie-          rung    von     Benzanthronpy        razolanthron    und  nachfolgende Reduktion dieses     Nitroproduk-          tes,    durch Erhitzen zur     Reaktion    bringt.  



  <I>Beispiel:</I>  46,1 Teile     Amino-Benzanthronpyrazol-          anthron        (vergl.    Beispiel des Hauptpatentes)  und 51,5 Teile     Dichlor-Benzanthronpyrazol-          anthron,    erhältlich durch     Chlorierung    von       Benzanthronpyrazolanthron    mittels     Sulfuryl-          chlorid    nach dem     schweiz.    Patent     Nr.181862,

       Beispiel 1 - das sind gleichmolekulare Men-         genverhältnisse    - werden mit 51 Gewichts  teilen trockenem     Natriumacetat    und 17 Tei  len Kupferkarbonat in 1200 Teilen     Nitro-          benzol    16 Stunden lang zum Kochen erhitzt.  Das Produkt stellt nach der     Aufarbeitung     ein schwarzes     Farbstoffpulver    dar, violett  braun löslich in konzentrierter Schwefelsäure  und mit     grünstichig    blauer Farbe     verküpbar.     Die Ausfärbung auf Baumwolle ist ein sehr  echtes Blaugrau. Die vermutliche Zusam  mensetzung dieses Farbstoffes wird versinn  bildlicht durch .die Formel  
EMI0001.0043     




  Process for the preparation of a gypsum dye of the benzanthrone pyrazolanthrone series (ie. The subject of this additional patent is a process for the preparation of a vat dye of the benzanthrone pyrazole anthrone series, which is characterized in that 1 molecule of dichlorobenzanthrone pyrazolanthrone, as obtained by chlorination of benzanthrone pyrazolanthrone, is obtained can,

   in the presence of a solvent with 1 molecule of aminobenzanthronpyrazolanthrone, obtainable by nitration of benzanthronpyrazolanthrone and subsequent reduction of this nitro product, by heating.



  <I> Example: </I> 46.1 parts of amino-benzanthrone pyrazole-anthrone (see example of the main patent) and 51.5 parts of dichloro-benzanthrone-pyrazole-anthrone, obtainable by chlorination of benzanthrone-pyrazole-anthrone using sulfuryl chloride according to Switzerland. Patent No. 181862,

       Example 1 - these are proportions of equal molecular weight - are boiled with 51 parts by weight of dry sodium acetate and 17 parts of copper carbonate in 1200 parts of nitrobenzene for 16 hours. After working up, the product is a black dye powder, soluble in concentrated sulfuric acid in a violet-brown color and vettable with a greenish blue color. The color on cotton is a very real blue-gray. The presumed composition of this dye is illustrated by the formula
EMI0001.0043

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines Küpen- farbstoffes der Benzanthronpyrazolanthron- reihe, dadurch gekennzeichnet, dass man 1Mo-lekül Dichlorbenzanthronpyrazolanthron, wie es durch Chlorierung von Benzanthron- pyrazolanthron mittelst Sulfurylchlorid er halten werden kann, PATENT CLAIM: Process for the preparation of a vat dye of the benzanthrone pyrazole anthrone series, characterized in that 1Mol dichlorobenzanthrone pyrazole anthrone, as can be obtained by chlorination of benzanthrone pyrazole anthrone by means of sulfuryl chloride, in Gegenwart eines Lö sungsmittels mit 1 Molekül Aminobenz- anthronpyrazolanthron, erhältlich durch Ni- trierung von Benzanthronpyrazolanthron und nachfolgende Reduktion dieses Nitroproduk- tes, durch Erhitzen zur Reaktion bringt. Das Produkt stellt nach der Aufarbeitung ein schwarzes Farbstoffpulver dar, violettbraun löslich in konzentrierter Schwefelsäure und mit grünstickig blauer Farbe verküpbar. Die Ausfärbung auf Baumwolle ist ein sehr ech tes Blaugrau. in the presence of a solvent with 1 molecule of aminobenzanthronpyrazolanthrone, obtainable by nitration of benzanthronpyrazolanthrone and subsequent reduction of this nitro product, reacts by heating. After work-up, the product is a black dye powder, soluble in a violet-brown color in concentrated sulfuric acid and vettable with a greenish blue color. The coloration on cotton is a very real blue-gray. UNTERANSPRÜCHE: 1. Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man Nitrobenzol als Lösungsmittel verwendet. 2. Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man die Reaktion in Gegenwart eines säurebindenden Mittels ausführt. 3. Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man dem Reaktions gemisch einen Katalysator zusetzt. SUBClaims: 1. Method according to claim, characterized in that nitrobenzene is used as the solvent. 2. The method according to claim, characterized in that the reaction is carried out in the presence of an acid-binding agent. 3. The method according to claim, characterized in that a catalyst is added to the reaction mixture.
CH150184D 1928-12-01 1929-11-23 Process for the preparation of a vat dye of the benzanthrone pyrazole anthrone series. CH150184A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE150184X 1928-12-01
CH146858T 1929-11-23

Publications (1)

Publication Number Publication Date
CH150184A true CH150184A (en) 1931-10-15

Family

ID=25714941

Family Applications (1)

Application Number Title Priority Date Filing Date
CH150184D CH150184A (en) 1928-12-01 1929-11-23 Process for the preparation of a vat dye of the benzanthrone pyrazole anthrone series.

Country Status (1)

Country Link
CH (1) CH150184A (en)

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