CH147685A - Process for the preparation of an aminodiphenylamine derivative. - Google Patents

Process for the preparation of an aminodiphenylamine derivative.

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Publication number
CH147685A
CH147685A CH147685DA CH147685A CH 147685 A CH147685 A CH 147685A CH 147685D A CH147685D A CH 147685DA CH 147685 A CH147685 A CH 147685A
Authority
CH
Switzerland
Prior art keywords
derivative
aminodiphenylamine
preparation
parts
chlorodiphenylamine
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 CH147685A publication Critical patent/CH147685A/en

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Description

  

      Verfahren    zur Herstellung eines     Aminodiplienylaminderivates.       Vorliegendes Patent bezieht sich auf ein  Verfahren zur     Herstellung    eines     Aminodi-          phenylaminderivates,    dadurch gekennzeichnet,  dass man     p-Chlornitrosobenzol    mit     Nitroso-          benzol    kondensiert und das Kondensations  produkt mit einem Reduktionsmittel behandelt.  



  Das erhaltene     4-Amino-4'-chlordiphenyl-          amin    schmilzt nach     Umkristallisieren    bei 70  bis 71  . Es soll als Zwischenprodukt zur  Herstellung von Farbstoffen verwendet werden.  Das     4-Amino-4'-chlordiphenylamin    ist von       Jacobsen,    Annalen 303, Seite 312 und 314  beschrieben.  



       Beispiel:          70;5    Teile     p-Chlorniti-osobenzol    und     53,5     Teile     Nitrosobenzol    werden in 400 Teilen  Eisessig gelöst und in 1500 Teile Schwefel  säure von 66       B6    bei     -i--    5       innerhälb    2 Stun  den     eintropfen    gelassen. Die klare Lösung  wird in Eiswasser gegossen, das ausgeschie  dene     Kondensationsprodukt    abgesaugt und  säurefrei gewaschen; es hat- den Schmelz  punkt 143  .

   Die Lösung desselben in 3000    Teilen Wasser und 65 Teilen Natronlauge  von 38   Bö wird bei 60   mit einer Lösung  von 175 Teilen     wasserfreiem    Schwefelnatrium  in der nötigen Menge Wasser versetzt und  auf 80   erwärmt. Nach ungefähr einer  halben Stunde ist unter     Entfärbung    der  Flüssigkeit die Reduktion eingetreten und  das gebildete     Aminodiphenylaminderivat    aus  geschieden. Nach dem Erkalten wird das  selbe     abfiltriert.  



      Process for the preparation of an aminodiplienylamine derivative. The present patent relates to a process for the preparation of an aminodiphenylamine derivative, characterized in that p-chloronitrosobenzene is condensed with nitrosobenzene and the condensation product is treated with a reducing agent.



  The 4-amino-4'-chlorodiphenylamine obtained melts at 70 to 71 after recrystallization. It is intended to be used as an intermediate in the manufacture of dyes. The 4-amino-4'-chlorodiphenylamine is described by Jacobsen, Annalen 303, pages 312 and 314.



       Example: 70; 5 parts of p-chloroniti-osobenzene and 53.5 parts of nitrosobenzene are dissolved in 400 parts of glacial acetic acid and allowed to drip into 1500 parts of sulfuric acid of 66 B6 at -i-- 5 within 2 hours. The clear solution is poured into ice water, the condensation product excreted is suctioned off and washed free of acid; it has a melting point of 143.

   A solution of 175 parts of anhydrous sodium sulphide in the necessary amount of water is added at 60 to the solution of this in 3000 parts of water and 65 parts of 38 boilers of sodium hydroxide solution and heated to 80. After about half an hour, the reduction has taken place with discoloration of the liquid and the aminodiphenylamine derivative formed has separated out. After cooling, the same is filtered off.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Amino- diphenylaminderivates, dadurch gekennzeich net, dass man p-Chlornitrosobenzol mit Nitroso- benzol kondensiert und das Kondensations- produkt mit einem Reduktionsmittel behandelt. Das erhaltene 4-Amino-4'-chlordiphenyl- amin schmilzt nach Umkristallisieren bei 70 bis 71 . Es soll als Zwischenprodukt zur Herstellung von Farbstoffen verwendet werde . PATENT CLAIM: Process for the production of an aminodiphenylamine derivative, characterized in that p-chloronitrosobenzene is condensed with nitrosobenzene and the condensation product is treated with a reducing agent. The 4-amino-4'-chlorodiphenylamine obtained melts at 70 to 71 after recrystallization. It is said to be used as an intermediate in the manufacture of dyes.
CH147685D 1929-02-15 1929-09-20 Process for the preparation of an aminodiphenylamine derivative. CH147685A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE147685X 1929-02-15
CH145992T 1929-09-20

Publications (1)

Publication Number Publication Date
CH147685A true CH147685A (en) 1931-06-15

Family

ID=25714776

Family Applications (1)

Application Number Title Priority Date Filing Date
CH147685D CH147685A (en) 1929-02-15 1929-09-20 Process for the preparation of an aminodiphenylamine derivative.

Country Status (1)

Country Link
CH (1) CH147685A (en)

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