CH203629A - Process for the production of a condensation product. - Google Patents

Process for the production of a condensation product.

Info

Publication number
CH203629A
CH203629A CH203629DA CH203629A CH 203629 A CH203629 A CH 203629A CH 203629D A CH203629D A CH 203629DA CH 203629 A CH203629 A CH 203629A
Authority
CH
Switzerland
Prior art keywords
production
condensation product
orange
nitro
cyanobenzene
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 CH203629A publication Critical patent/CH203629A/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
    • C09B51/00—Nitro or nitroso dyes

Landscapes

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

Description

  

  <B>Zusatzpatent</B> zum     Hauptpatent    Nr. 200069:    Verfahren zur Herstellung eines Kondensationsproduktes.    Vorliegendes Patent bezieht sich auf ein  Verfahren zur Herstellung eines Kondensa  tionsproduktes, dadurch gekennzeichnet, dass  man     1-Chlor-2-nitro-4-cyanbenzol    mit     p-Amino-          phenol    kondensiert.  



  Das so erhaltene     2-Nitro-4-cyan-4'-ogy-          diphenylamin    kristallisiert aus Methanol in  orangegelben Kristallen vom     Smp.   <B>175</B>   und  färbt und druckt     Acetatseide    in orangegelben  Tönen von hervorragender Lichtechtheit.  



  <I>Beispiel:</I>  18,5 Teile     1-Chlor-2-nitro-4-cyanbenzol     werden mit etwa 120 Teilen Alkohol und  25 Teilen     p-Aminophenol    mehrere Stunden  unter     Rückflusskühlung    zum Sieden erhitzt.  Beim Erkalten scheidet sich das gebildete    Kondensationsprodukt in orangegelben Kri  stallen aus.



  <B> Additional patent </B> to main patent no. 200069: Process for the production of a condensation product. The present patent relates to a process for the production of a condensation product, characterized in that 1-chloro-2-nitro-4-cyanobenzene is condensed with p-aminophenol.



  The 2-nitro-4-cyano-4'-ogydiphenylamine obtained in this way crystallizes from methanol in orange-yellow crystals with a melting point of 175 and dyes and prints acetate silk in orange-yellow shades of excellent lightfastness.



  <I> Example: </I> 18.5 parts of 1-chloro-2-nitro-4-cyanobenzene are refluxed with about 120 parts of alcohol and 25 parts of p-aminophenol for several hours. On cooling, the condensation product formed separates out in orange-yellow crystals.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung ,eines Konden sationsproduktes, dadurch gekennzeichnet, dass man 1.Chlor-2-nitro-4-cyanbenzolmit p-Amino- phenol kondensiert. Das so erhaltene 2-Nitro-4-cyan-4'-ogy- diphenylamin kristallisiert aus Methanol in orangegelben Kristallen vom Smp. 175 und färbt und druckt Acetatseide in orangegelben Tönen von hervorragender Lichtechtheit. PATENT CLAIM: Process for the production of a condensation product, characterized in that 1. Chlorine-2-nitro-4-cyanobenzene is condensed with p-aminophenol. The 2-nitro-4-cyano-4'-ogydiphenylamine obtained in this way crystallizes from methanol in orange-yellow crystals of melting point 175 and dyes and prints acetate silk in orange-yellow shades of excellent lightfastness.
CH203629D 1936-08-28 1937-08-11 Process for the production of a condensation product. CH203629A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE203629X 1936-08-28
CH200069T 1937-08-11

Publications (1)

Publication Number Publication Date
CH203629A true CH203629A (en) 1939-03-15

Family

ID=25723438

Family Applications (1)

Application Number Title Priority Date Filing Date
CH203629D CH203629A (en) 1936-08-28 1937-08-11 Process for the production of a condensation product.

Country Status (1)

Country Link
CH (1) CH203629A (en)

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