CH135640A - Process for the preparation of an arylaminonaphthalene derivative. - Google Patents

Process for the preparation of an arylaminonaphthalene derivative.

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Publication number
CH135640A
CH135640A CH135640DA CH135640A CH 135640 A CH135640 A CH 135640A CH 135640D A CH135640D A CH 135640DA CH 135640 A CH135640 A CH 135640A
Authority
CH
Switzerland
Prior art keywords
derivative
preparation
arylaminonaphthalene
parts
aminonaphthalene
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 CH135640A publication Critical patent/CH135640A/en

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

Description

  

  Verfahren zur Darstellung eines     Arvlaminonaphtalinderivates.       Wie gefunden wurde, erhält man     4-(a-          Naphtylamino)    -     4'-        amino-diphenylamirtsulfo-          säure,    wenn man     1-Aminonaphtalin    und     4.4'-          Dianrino-diphenylamin-2-sulfosäure    durch Er  hitzen auf höhere Temperatur     irn        offenen    oder  im Druckgefäss in Gegenwart von     Bisulfitlauge          kondensiert.     



       Beispiel:     In einem verbleiten oder emaillierten  Rührkessel mit     Heizmantel    und     Rückfluss-          kühler    werden 140 Teile     1-Amitronaphtalin     und 280 Teile     4.4'-Diamino-diphenylamin-2-          strlfosäure    mit 2000 Teilen     Natriumbisulfit-          lösung    von 36      B6        und    2000 Teilen Wasser  50     Stunden    unter Rühren gekocht. Die Auf  arbeitung erfolgt wie in dem Zusatzpatent  Nr.<B>134888</B> beschrieben.

   Das Endprodukt    ist mit dein gemäss diesem Zusatzpatent er  hältliehen identisch.



  Process for the preparation of an arvlaminonaphthalene derivative. As has been found, 4- (a-naphthylamino) -4'-aminodiphenylamirtsulfonic acid is obtained if 1-aminonaphthalene and 4,4'-dianrino-diphenylamine-2-sulfonic acid are heated to a higher temperature in an open or in a pressure vessel condensed in the presence of bisulfite liquor.



       Example: In a leaded or enamelled stirred kettle with a heating jacket and reflux condenser, 140 parts of 1-amitronaphthalene and 280 parts of 4,4'-diamino-diphenylamine-2-strifoic acid are stirred with 2000 parts of sodium bisulfite solution of 36 B6 and 2000 parts of water for 50 hours cooked. The processing takes place as described in the additional patent no. <B> 134888 </B>.

   The end product is identical to yours according to this additional patent.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines Aryl- aminorraphtalinderivates, dadurch gekennzeich net, dass man 1-Aminonaphtalin mit 4.4' Diamitrodiphenylamin-2-sulfosäure in Gegen wart von Bisulfitlauge auf höhere Tempera tur erwärmt. UNTERANSPRUCH: Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man die Umsetzung un ter Druck in geschlossenem Gefäss vornimmt. PATENT CLAIM: Process for the preparation of an aryl aminorraphthalene derivative, characterized in that 1-aminonaphthalene is heated to a higher temperature with 4.4 'diamitrodiphenylamine-2-sulfonic acid in the presence of bisulfite lye. SUBSTANTIAL CLAIM: Method according to claim, characterized in that the reaction is carried out under pressure in a closed vessel.
CH135640D 1926-12-13 1927-12-03 Process for the preparation of an arylaminonaphthalene derivative. CH135640A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE135640X 1926-12-13
CH132030T 1927-12-03

Publications (1)

Publication Number Publication Date
CH135640A true CH135640A (en) 1929-09-30

Family

ID=25711757

Family Applications (1)

Application Number Title Priority Date Filing Date
CH135640D CH135640A (en) 1926-12-13 1927-12-03 Process for the preparation of an arylaminonaphthalene derivative.

Country Status (1)

Country Link
CH (1) CH135640A (en)

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