CH149891A - Process for the preparation of a substituted m-oxy-diphenylamine carboxylic acid. - Google Patents

Process for the preparation of a substituted m-oxy-diphenylamine carboxylic acid.

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Publication number
CH149891A
CH149891A CH149891DA CH149891A CH 149891 A CH149891 A CH 149891A CH 149891D A CH149891D A CH 149891DA CH 149891 A CH149891 A CH 149891A
Authority
CH
Switzerland
Prior art keywords
oxy
substituted
acid
preparation
carboxylic acid
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 CH149891A publication Critical patent/CH149891A/en

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Description

  

  Verfahren zur Darstellung einer     substitnierten        m-Oxy-diphenylaminearbonsäure.       Vorliegendes Patent bezieht sieh     auf     ein Verfahren zur Herstellung einer sub  stituierten     in   <B>-</B>     Oxydiphonylaminearbonsäure,     dadurch gekennzeichnet,     dass    man ein     Alkali-          salz    von     3-Oxy-6-methyl-diphenylamili    mit  Kohlensäure unter Druck erhitzt.  



  Die     3-Oxy-6-methyl-cliphenylaminearbon-          säure    ist ein gelbes Pulver, das nach dem       Umkristallisieren    aus Eisessig den     Selimelz-          punkt   <B>179 ' C</B> zeigt. Ihre alkoholische Lö  sung gibt mit verdünnter     Eisenchloridlösung     eine violette Färbung.  



  Das Produkt soll als     Zwise-henprodukt     zur Herstellung von Farbstoffen dienen.  <I>Beispiel:</I>  <B>1990</B> Teile     3-Oxy-6-methyl-diphenylamin     werden mit<B>560</B> Teilen     Kaliumhydroxyd    und  <B>3000</B> Teilen Wasser in einem mit Rührwerk  versehenen     Autoklaven'in    Lösung gebracht  und das Wasser im Vakuum bis zur völligen  Trockenheit des gebildeten     Kaliumsalzes        ab-          destilliert.    Nach     demErhalten        derReaktions-          masse    leitet man Kohlensäure bis zu -einem  Druck von<B>10</B> Atmosphären ein und erhitzt    auf<B>170 '</B>  <RTI  

   ID="0001.0026">   C    während zwölf Stunden. Die  erkaltete Schmelze wird in heissem Wasser       O'elöst,    filtriert und die gebildete     Karbon-          säure    mit Salzsäure gefällt. Zur weiteren  Reinigung kann dieselbe aus Soda oder     Na-          triumacetat    umgelöst werden.



  Process for the preparation of a substituted m-oxy-diphenylaminearboxylic acid. The present patent relates to a process for the preparation of a substituted in <B> - </B> oxydiphonylaminearboxylic acid, characterized in that an alkali salt of 3-oxy-6-methyl-diphenylamino is heated with carbonic acid under pressure.



  3-Oxy-6-methyl-cliphenylamino-carbonic acid is a yellow powder which, after recrystallization from glacial acetic acid, shows the selimelting point <B> 179 'C </B>. Your alcoholic solution gives a purple color with a dilute ferric chloride solution.



  The product is intended to serve as an intermediate product for the production of dyes. <I> Example: </I> <B> 1990 </B> parts of 3-oxy-6-methyl-diphenylamine are mixed with <B> 560 </B> parts of potassium hydroxide and <B> 3000 </B> parts of water brought into solution in an autoclave equipped with a stirrer and the water was distilled off in vacuo until the potassium salt formed was completely dry. After the reaction mass has been obtained, carbonic acid is introduced up to a pressure of <B> 10 </B> atmospheres and the mixture is heated to <B> 170 '</B> <RTI

   ID = "0001.0026"> C for twelve hours. The cooled melt is dissolved in hot water, filtered and the carbonic acid formed is precipitated with hydrochloric acid. For further cleaning, the same can be made up of soda or sodium acetate.

Claims (1)

PATENTANSPRUCH: Verfahren zür Herstellung einer sub stituierten in <B>-</B> Oxydiphenylaminearbonsäure. dadurch gekennzeichnet, dass man ein Alkali- salz von 3-Oxy-6-methyl-dipheiiylamiii iiiii Kohlensäure unter Druck erhitzt. Die 3-Öxy-6-methyl-diphenylamine-,trbon- säure ist ein gelbes Pulver, das nach deni Umkristallisieren aus Eisessig den Schmelz punkt<B>179 'C</B> zeigt. PATENT CLAIM: Process for the production of a substituted in <B> - </B> oxydiphenylaminearboxylic acid. characterized in that an alkali salt of 3-oxy-6-methyl-dipheiiylamiii iiiii carbonic acid is heated under pressure. 3-Öxy-6-methyl-diphenylamine- trbonic acid is a yellow powder which, after recrystallization from glacial acetic acid, has a melting point <B> 179 'C </B>. Ihre alkoholische Lö sung gibt mit. verdünnterEisenehloridlösung eine violette Färbung. Das Produkt soll als Zwischenprodukt zur Herstellung von Farbstoffen dienen. Your alcoholic solution is there with you. diluted iron chloride solution turns purple. The product is intended to serve as an intermediate in the manufacture of dyes.
CH149891D 1929-07-02 1930-06-28 Process for the preparation of a substituted m-oxy-diphenylamine carboxylic acid. CH149891A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE149891X 1929-07-02
CH146551T 1929-11-13

Publications (1)

Publication Number Publication Date
CH149891A true CH149891A (en) 1931-09-30

Family

ID=25714895

Family Applications (1)

Application Number Title Priority Date Filing Date
CH149891D CH149891A (en) 1929-07-02 1930-06-28 Process for the preparation of a substituted m-oxy-diphenylamine carboxylic acid.

Country Status (1)

Country Link
CH (1) CH149891A (en)

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