CH134832A - Process for the preparation of an arylaminonaphthalene derivative. - Google Patents

Process for the preparation of an arylaminonaphthalene derivative.

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Publication number
CH134832A
CH134832A CH134832DA CH134832A CH 134832 A CH134832 A CH 134832A CH 134832D A CH134832D A CH 134832DA CH 134832 A CH134832 A CH 134832A
Authority
CH
Switzerland
Prior art keywords
preparation
derivative
arylaminonaphthalene
aminonaphthalene
diaminobenzene
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 CH134832A publication Critical patent/CH134832A/en

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

Description

  

  Verfahren zur Darstellung eines     ArylaminonaphtaUnderivates.       Im Hauptpatent ist ein Verfahren zur  Darstellung eines     Arylaminonaphtalinderiva-          tes        beschrieben.,    welches dadurch gekenn  zeichnet ist, dass man     2-Ogynaphtalin    mit  1 .     2-Diaminobenzol    in Gegenwart von     Bi-          sulfitlauge    bei höheren Temperaturen mit  oder ohne Anwendung     von,    Druck konden  siert.

   Wie nun weiter gefunden wurde, er  hält man das gleiche Produkt, nämlich das       2'-Aminophenyl-2-aminonaphtalin,    wenn man  an Stelle des     2-Oxynaphtalins        2-Aminonaph-          ta-lin    dieser Kondensation unterwirft.

           Beispiel       144 Teile     2-Aminonaphtalin,   <B>150</B> Teile  1.     2-Diaminobenzol    und 4000 Teile     Natrium-          bisulfitlösung    von<B>19'</B>     B6    werden in einem  geschlossenen     emaillierten    Kessel zirka 40  Stunden bei 115 bis 120' C     gerührt.    Die  Aufarbeitung erfolgt, wie im Beispiel des    Hauptpatentes angegeben. Das Reaktions  produkt, ist identisch mit dem des Haupt  patentes.



  Process for the preparation of an arylaminonaphtha derivative. The main patent describes a process for the preparation of an arylaminonaphthalene derivative, which is characterized in that 2-ogynaphthalene is 1. 2-Diaminobenzene condensed in the presence of bisulfite liquor at higher temperatures with or without the use of pressure.

   As has now been found, the same product is obtained, namely 2'-aminophenyl-2-aminonaphthalene, if 2-aminonaphthalene is subjected to this condensation instead of 2-oxynaphthalene.

           Example 144 parts of 2-aminonaphthalene, 150 parts of 1. 2-diaminobenzene and 4000 parts of sodium bisulfite solution of 19 'B6 are heated in a closed enamelled kettle at 115 to Stirred at 120 ° C. The work-up takes place as indicated in the example of the main patent. The reaction product is identical to that of the main patent.

Claims (1)

PATENTANSPRUCH: Verfahren . zur Darstellung eines Aryl- aminonaphtalinderivates, dadurch gekenn zeichnet, dass man 2-Aminonaphtalin mit <B>1.</B> 2-Diaminobenzol in Gegenwart von Bi sulfitlauge auf höhere Temperatur erwärmt. UNTERANSPRUCH: Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man die Umsetzung un ter Druck im geschlossenen Gefässe vor nimmt. PATENT CLAIM: Process. for the preparation of an aryl aminonaphthalene derivative, characterized in that 2-aminonaphthalene is heated to a higher temperature with 1. 2-diaminobenzene in the presence of bisulfite liquor. SUBCLAIM: Method according to claim, characterized in that the reaction is carried out under pressure in a closed vessel.
CH134832D 1926-12-13 1927-12-03 Process for the preparation of an arylaminonaphthalene derivative. CH134832A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE134832X 1926-12-13
CH132030T 1927-12-03

Publications (1)

Publication Number Publication Date
CH134832A true CH134832A (en) 1929-08-15

Family

ID=25711741

Family Applications (1)

Application Number Title Priority Date Filing Date
CH134832D CH134832A (en) 1926-12-13 1927-12-03 Process for the preparation of an arylaminonaphthalene derivative.

Country Status (1)

Country Link
CH (1) CH134832A (en)

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