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CH157248A - Process for the preparation of a vat dye. - Google Patents

Process for the preparation of a vat dye.

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Publication number
CH157248A
CH157248A CH157248DA CH157248A CH 157248 A CH157248 A CH 157248A CH 157248D A CH157248D A CH 157248DA CH 157248 A CH157248 A CH 157248A
Authority
CH
Switzerland
Prior art keywords
weight
parts
preparation
product obtained
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 CH157248A publication Critical patent/CH157248A/en

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Description

  

  Verfahren zur Darstellung eines     Küpenfarbstoffes.       Gegenstand vorliegender Erfindung ist ein  Verfahren zur Darstellung eines     Küpenfarb-          stoffes,    dadurch gekennzeichnet,     dass    man  <B>1</B>     Mol.    4.     5-Dibalogeri-Bz-2.        4'-dichloranthra-          chinon-1   <B>.</B>     2-akridon    mit 2     Mol.        1-Amino-          anthrachinon    umsetzt, wobei die Halogen  reste in 4.

       5-Stellung    in Reaktion treten und  das erhaltene Produkt mit einem     karba-          zolierend    wirkenden Mittel behandelt.  



  <I>Beispiel:</I>  <B>50</B> Gewichtsteile 4.     5-Bz-2'.        4'-Tetrachlor-          anthrachinon-1   <B>.</B>     2-akridon    (erhältlich aus     5-          Amiiioantbrachinon-1   <B>.</B>     2-akridon    durch     Sand-          meyern    und     Ohlorieren    in Nitrobenzol bei  <B>90-100 0 C</B> in Gegenwart von Jod) und  <B>60</B> Gewichtsteile     1-Aminoanthrachinon    werden  zusammen mit<B>50</B> Gewichtsteilen     Natrium-          acetat,

     <B>10</B>     Gewichtsteilen        Magnesiumoxyd,     2     Gewichtsteilen    Kupferpulver und 2 Ge  wichtsteilen     Kupferühlorid    in<B>1000</B>     Gewi        chts-          teilen    Naphtalin einige Stunden     züm    Sieden    erhitzt, wobei die in 4.     5-Stellung    stehenden  Chloratome in Reaktion treten. Nach be  endigter Reaktion wird mit     Toluol    verdünnt  und abgesaugt und das Reaktionsprodukt  mit verdünnter Salzsäure ausgekocht.  



  <B>5</B> Gewichtsteile des so erhaltenen Kon  densationsproduktes werden mit 20 Gewichts  teilen     Aluminiumehlorid    in<B>50</B>     Gewichtsteilen          Pyridin    kurze Zeit auf<B>120-130 0</B> erhitzt,  bis sich eine aufgearbeitete Probe in kon  zentrierter Schwefelsäure rotviolett löst. Die  Schmelze wird nun in eine Lösung von<B>50</B>       Gewichtsteilen        Ätznatron    in 400 Gewichts  teilen Wasser eingerührt,<B>100</B> cm' Chlor  lauge werden zugefügt und dann das     Pyridin     mit Wasserdampf abgetrieben.  



  Das erhaltene Produkt bildet ein     olive-          farbenes    Pulver, das sich in Schwefelsäure  rotviolett löst und Baumwolle aus brauner       Küpe    in     rotstichig        oliven    Tönen mit sehr  guten Echtheitseigenschaften anfärbt.



  Process for the preparation of a vat dye. The present invention relates to a process for the preparation of a vat dye, characterized in that <B> 1 </B> Mol. 4. 5-Dibalogeri-Bz-2. 4'-dichloroanthraquinone-1 <B>. </B> Reacts 2-acridone with 2 moles. 1-aminoanthraquinone, with the halogen radicals in 4.

       5-position react and the product obtained is treated with a carbazolating agent.



  <I> Example: </I> <B> 50 </B> parts by weight 4. 5-Bz-2 '. 4'-Tetrachloro-anthraquinone-1 <B>. </B> 2-akridon (available from 5-aminoantbrachinon-1 <B>. </B> 2-akridon by Sandmeyern and chlorination in nitrobenzene at <B> 90-100 0 C </B> in the presence of iodine) and <B> 60 </B> parts by weight of 1-aminoanthraquinone together with <B> 50 </B> parts by weight of sodium acetate,

     <B> 10 </B> parts by weight of magnesium oxide, 2 parts by weight of copper powder and 2 parts by weight of copper chloride in <B> 1000 </B> parts by weight of naphthalene heated to boiling for a few hours, with the chlorine atoms in the 4.5-position in Reaction. After the reaction has ended, it is diluted with toluene and filtered off with suction and the reaction product is boiled with dilute hydrochloric acid.



  <B> 5 </B> parts by weight of the condensation product obtained in this way are briefly heated to <B> 120-130 0 </B> with 20 parts by weight of aluminum chloride in <B> 50 </B> parts by weight of pyridine until a The processed sample dissolves red-violet in concentrated sulfuric acid. The melt is then stirred into a solution of <B> 50 </B> parts by weight of caustic soda in 400 parts by weight of water, <B> 100 </B> cm 'chlorine liquor is added and the pyridine is then driven off with steam.



  The product obtained forms an olive-colored powder which dissolves red-violet in sulfuric acid and dyes cotton from a brown vat in reddish olive tones with very good fastness properties.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines Küpen- farbstoffes, dadurch gekennzeichnet, dass man <B>1</B> Mol. 4. PATENT CLAIM: Process for the preparation of a vat dye, characterized in that <B> 1 </B> Mol. 4. 5-Dihalogen-Bz-2'. 4'-dichloranthra- chinon-1. 2-akridon mit 2 Mol. 1-Amino- anthrachinon umsetzt, wobei die Halogen atome in 4 .5-Stellung in Reaktion treten, und das erhaltene Produkt mit einem karba- zolierend wirkenden Mittel behandelt. 5-dihalo-Bz-2 '. 4'-dichloroanthraquinone-1. Reacts 2-akridon with 2 mol. 1-Amino-anthraquinone, the halogen atoms reacting in the 4 .5-position, and the product obtained is treated with a carbazolizing agent. Das erhaltene Produkt bildet ein olive- farbenes Pulver, das sich in Schwefelsäure rotviolett löst und Baumwolle aus brauner Küpe in rotstichig oliven Tönen mit sehr guten Echtheitseigenschaften anfärbt. The product obtained forms an olive-colored powder which dissolves in sulfuric acid in a red-violet color and dyes cotton from a brown vat in reddish olive tones with very good fastness properties.
CH157248D 1930-02-28 1931-02-25 Process for the preparation of a vat dye. CH157248A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE157248X 1930-02-28
CH153831T 1931-02-25

Publications (1)

Publication Number Publication Date
CH157248A true CH157248A (en) 1932-09-15

Family

ID=25716325

Family Applications (1)

Application Number Title Priority Date Filing Date
CH157248D CH157248A (en) 1930-02-28 1931-02-25 Process for the preparation of a vat dye.

Country Status (1)

Country Link
CH (1) CH157248A (en)

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