CH192487A - Process for the preparation of a dye of the anthraquinone series. - Google Patents

Process for the preparation of a dye of the anthraquinone series.

Info

Publication number
CH192487A
CH192487A CH192487DA CH192487A CH 192487 A CH192487 A CH 192487A CH 192487D A CH192487D A CH 192487DA CH 192487 A CH192487 A CH 192487A
Authority
CH
Switzerland
Prior art keywords
dye
anthraquinone series
preparation
sulfonic acid
condensed
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 CH192487A publication Critical patent/CH192487A/en

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

Description

  

  Verfahren zur Herstellung eines     Farbstoffes    der     Anthrachinonreihe.       Gegenstand dieses Zusatzpatentes ist ein  Verfahren zur     Herstellur9g    eines Farbstoffes  der     Anthrachinonreihe,    welches dadurch ge  kennzeichnet ist, dass man     1-jodantbrachinon-          2-sulfosaures    Kalium mit     2'-Aminodiphenyl-          amin-4-nitro-2-sulfosäure    kondensiert.

      <I>Beispiel:</I>    28 Gewichtsteile     1-jodanthrachinon-2-sul-          fonsaures    Kalium, 21 Gewichtsteile     2'-Amino-          diphenylamin-4-nitro-2-sulfonsäure,    12 Ge  wichtsteile     calcinierte    Soda und 1 Gewichts  teil     Kupferchlorür    werden in 250 Gewichts  teilen Wasser solange unter Rühren auf  40-500 erwärmt, bis aus der zuerst ent  standenen dunkelbraunen Lösung das Um  setzungsprodukt auszukristallisieren beginnt.  Man lässt erkalten, saugt ab und reinigt den  Farbstoff in der üblichen Weise. Der Farb  stoff zieht auf Wolle in rotbraunen Tönen.



  Process for the preparation of a dye of the anthraquinone series. The subject of this additional patent is a process for the production of a dye of the anthraquinone series, which is characterized in that 1-iodantbrachinon-2-sulfonic acid potassium is condensed with 2'-aminodiphenylamine-4-nitro-2-sulfonic acid.

      <I> Example: </I> 28 parts by weight of 1-iodanthraquinone-2-sulphonic acid potassium, 21 parts by weight of 2'-aminodiphenylamine-4-nitro-2-sulphonic acid, 12 parts by weight of calcined soda and 1 part by weight of copper chloride in 250 parts by weight of water heated to 40-500 while stirring until the reaction product begins to crystallize out of the dark brown solution that was formed first. Allow to cool, suction off and clean the dye in the usual way. The dye pulls on wool in red-brown tones.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Farb stoffes der Anthrachinonreihe, dadurch ge kennzeichnet, dass man 1-jodanthrachinon-2- sulfosaures Kalium mit 2'-Aminodiphenyl- amin-4-nitro-2-sulfosäure kondensiert. Der so erhältliche Farbstoff färbt Wolle in rotbraunen Tönen. UNTERANSPRUCH: Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass die Reaktionskompo nenten durch Erwärmen in Wasser in Ge genwart von Natriumcarbonat und Kupfer- chlorür kondensiert werden. PATENT CLAIM: Process for the production of a dye of the anthraquinone series, characterized in that 1-iodanthraquinone-2-sulfonic acid potassium is condensed with 2'-aminodiphenylamine-4-nitro-2-sulfonic acid. The dye obtainable in this way dyes wool in red-brown shades. SUBSTANTIAL CLAIM: Process according to patent claim, characterized in that the reaction components are condensed by heating in water in the presence of sodium carbonate and copper chloride.
CH192487D 1934-12-07 1935-12-05 Process for the preparation of a dye of the anthraquinone series. CH192487A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE192487X 1934-12-07
CH189646T 1935-12-05

Publications (1)

Publication Number Publication Date
CH192487A true CH192487A (en) 1937-08-15

Family

ID=25721820

Family Applications (1)

Application Number Title Priority Date Filing Date
CH192487D CH192487A (en) 1934-12-07 1935-12-05 Process for the preparation of a dye of the anthraquinone series.

Country Status (1)

Country Link
CH (1) CH192487A (en)

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