CH120160A - Process for the production of a new dye. - Google Patents

Process for the production of a new dye.

Info

Publication number
CH120160A
CH120160A CH120160DA CH120160A CH 120160 A CH120160 A CH 120160A CH 120160D A CH120160D A CH 120160DA CH 120160 A CH120160 A CH 120160A
Authority
CH
Switzerland
Prior art keywords
new dye
production
mol
brown
sci
Prior art date
Application number
Other languages
German (de)
Inventor
Gesellschaft Fuer Chemis Basel
Original Assignee
Chem Ind Basel
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 Chem Ind Basel filed Critical Chem Ind Basel
Publication of CH120160A publication Critical patent/CH120160A/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
    • C09B57/00—Other synthetic dyes of known constitution
    • C09B57/002—Aminoketone dyes, e.g. arylaminoketone dyes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Coloring (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

  Verfahren zur     Herstellung    eines neuen     Farbstoffes.       <B>Es</B> wurde gefunden, dass man einen neuen  Farbstoff erhält, wenn man     2,5-Dianilido-          benzochinon    mit einer Lösung von Chlor  in     Schwefeldiehlorid,    entsprechend der Zu  ammensetzung     SCI"    und zwar im Verhält  nis von 1     Mol.        2,5-Dianilidobenzochinon    zu  2     Mol.        SCI"    bei höherer Temperatur behan  delt.

   Der neue Farbstoff bildet ein dunkel  rotbraunes Pulver, das sich in konzentrierter       Sehwefeläure    mit violetter Farbe löst und       i#,'olle    aus der     Küpe        schwärzlichrotbraun          färbt.            Beispiel:     5,8 Teile     2,5-Dianilidobenzochinon    wer  den in etwa. der     \30fachen    Menge Nitrobenzol  suspendiert und dann unter Kühlung bei  etwa 5 bis 10   mit 7 Teilen einer Lösung  von Chlor in     Schwefeldichlorid,    entsprechend  der Zusammensetzung     SCI"    versetzt.

   Hier  auf wird auf 100   erhitzt und das Gemisch       Pinige    Zeit bei dieser Temperatur belassen.    Der neue Farbstoff wird sodann kalt fil  triert, mit Alkohol nachgewaschen und ge  trocknet. Die Reaktion kann auch bei Gegen  wart von säurebindenden Mitteln, wie Kreide,       Mg0    oder dergleichen, durchgeführt werden.



  Process for the production of a new dye. It has been found that a new dye is obtained if 2,5-dianilido-benzoquinone is mixed with a solution of chlorine in sulfur dichloride, corresponding to the composition SCI "in a ratio of 1 mol. 2,5-dianilidobenzoquinone to 2 mol. SCI "treated at a higher temperature.

   The new dye forms a dark red-brown powder which dissolves in concentrated sehulphuric acid with a violet color and turns blackish red-brown from the vat. Example: 5.8 parts of 2,5-dianilidobenzoquinone are roughly. 30 times the amount of nitrobenzene and then, with cooling at about 5 to 10, 7 parts of a solution of chlorine in sulfur dichloride, corresponding to the composition SCI ", are added.

   Here it is heated to 100 and the mixture is left at this temperature for a while. The new dye is then filtered cold, washed with alcohol and dried. The reaction can also be carried out in the presence of acid-binding agents such as chalk, MgO or the like.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen Farbstoffes, dadurch gekennzeichnet, dass man 2,5-Dianilidobenzochinon mit einer Lö sung von Chlor in Schwefeldichlorid, ent sprechend der Zusammensetzung SCI" und zwar im Verhältnis von 1 Mol. 2,.5-Dianilido- benzoehinon zu 2 Mol. SCI" bei höherer Temperatur behandelt. PATENT CLAIM: Process for the preparation of a new dye, characterized in that 2,5-dianilidobenzoquinone is mixed with a solution of chlorine in sulfur dichloride, corresponding to the composition SCI "in a ratio of 1 mol. 2, .5-dianilido benzoehinone treated at a higher temperature to 2 mol. Der neue Farbstoff bildet ein dunkelrotbraunes Pulver, das sich in konzentrierter Sehwef eläure mit violetter Farbe löst und Wolle aus der Küpe schwärz liehrotbraun färbt. The new dye forms a dark red-brown powder that dissolves in concentrated sulfuric acid with a violet color and dyes wool from the vat blackish red-brown.
CH120160D 1923-10-27 1925-09-16 Process for the production of a new dye. CH120160A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH108932T 1923-10-27
CH120160T 1925-09-16

Publications (1)

Publication Number Publication Date
CH120160A true CH120160A (en) 1927-05-02

Family

ID=25707499

Family Applications (1)

Application Number Title Priority Date Filing Date
CH120160D CH120160A (en) 1923-10-27 1925-09-16 Process for the production of a new dye.

Country Status (1)

Country Link
CH (1) CH120160A (en)

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