CH148354A - Process for the preparation of an m-oxy-phenylarylamine carboxylic acid. - Google Patents

Process for the preparation of an m-oxy-phenylarylamine carboxylic acid.

Info

Publication number
CH148354A
CH148354A CH148354DA CH148354A CH 148354 A CH148354 A CH 148354A CH 148354D A CH148354D A CH 148354DA CH 148354 A CH148354 A CH 148354A
Authority
CH
Switzerland
Prior art keywords
oxy
carboxylic acid
preparation
phenylarylamine
dimethyldiphenylamine
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 CH148354A publication Critical patent/CH148354A/en

Links

Landscapes

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

Description

  

  Verfahren zur Darstellung einer     m-Ogy-phenylarylaminearbonsäure.       Vorliegendes Patent bezieht sich auf ein  Verfahren zur Herstellung einer     m-Oxy-          phenylarylamincarbons#Lure,    dadurch gekenn  zeichnet, dass man ein     Alkalisalz    von     3-Oxy-          2'        5'-dimethyldiphenylamin    mit Kohlensäure  unter Druck erhitzt.  



  Die 3 -     Oxy-    2' 5'-     dimethyldiphenylamin-          carbonsäure    ist ein graues Pulver, das nach  dem     Umkristallisieren    aus Eisessig den  Schmelzpunkt<B>175</B> bis<B>176'</B> C zeigt. Ihre  alkoholische Lösung gibt mit verdünnter       Eisenchloridlösung    eine violette Färbung.  Das Produkt soll als Zwischenprodukt zur  Herstellung von Farbstoffen verwendet wer  den.  



       Beispiel:     639 Teile     3-Oxy-2'        5'-dimethyldiphenyl-          amin    werden mit 200,4 Teilen     Ätzkali     83,8     %        ig    und 1500 Teilen Wasser in einem  mit Rührwerk versehenen     Autoklaven    in Lö  sung gebracht und das Wasser im Vakuum  bis zur völligen Trockenheit des gebildeten       Kaliumsalzes        abdestilliert.    Nach dem Er  kalten der Reaktionsmasse leitet man Kohlen-    säure bis zu einem Druck von 10     Atm.        Piri     und erhitzt auf 170   während 16     

  Stunden.     Die erkaltete Schmelze wird in heissem  Wasser gelöst, filtriert und die gebildete       Carbonsäure    mit Salzsäure gefällt. Zur wei  teren Reinigung kann dieselbe aus Soda oder       Natriumacetat    umgelöst werden.



  Process for the preparation of a m-Ogy-phenylarylaminearboxylic acid. The present patent relates to a process for the preparation of an m-oxyphenylarylamine carboxylic acid, characterized in that an alkali metal salt of 3-oxy-2'5'-dimethyldiphenylamine is heated with carbonic acid under pressure.



  The 3-oxy-2'5'-dimethyldiphenylamine-carboxylic acid is a gray powder which, after recrystallization from glacial acetic acid, has a melting point of <B> 175 </B> to <B> 176 '</B> C. Your alcoholic solution gives a purple color with a dilute ferric chloride solution. The product is intended to be used as an intermediate in the manufacture of dyes.



       Example: 639 parts of 3-oxy-2 '5'-dimethyldiphenylamine are dissolved with 200.4 parts of 83.8% caustic potash and 1500 parts of water in an autoclave equipped with a stirrer, and the water is dissolved in vacuo until complete The dryness of the potassium salt formed is distilled off. After the reaction mass has cooled, carbonic acid is passed up to a pressure of 10 atm. Piri and heated to 170 during 16

  Hours. The cooled melt is dissolved in hot water, filtered and the carboxylic 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 zur Herstellung einer m-Oxy- phenylarylamincarbonsäure, dadurch gekenn zeichnet, dass man ein Alkalisalz von 3-Oxy- 2' 5'-dimethylcliphenylamin mit Kohlensäure unter Druck erhitzt. Die 3-Oxy-2' 5'- dimethyldiphenylamin- carbonsäure ist ein graues Pulver, das nach dem Umkristallisieren aus E,* sessig den Schmelzpunkt 175 bis<B>176'</B> C zeigt. PATENT CLAIM: Process for the production of an m-oxyphenylarylamine carboxylic acid, characterized in that an alkali salt of 3-oxy-2 '5'-dimethylcliphenylamine is heated with carbonic acid under pressure. The 3-oxy-2 '5'-dimethyldiphenylamine carboxylic acid is a gray powder which, after recrystallization from E, * sessig, has a melting point of 175 to 176 ° C. Ihre alkoholische Lösung gibt mit verdünnter Eisenchloridlösung eine violette Färbung. Your alcoholic solution gives a purple color with a dilute ferric chloride solution.
CH148354D 1928-12-01 1929-11-13 Process for the preparation of an m-oxy-phenylarylamine carboxylic acid. CH148354A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE148354X 1928-12-01
CH146551T 1929-11-13

Publications (1)

Publication Number Publication Date
CH148354A true CH148354A (en) 1931-07-15

Family

ID=25714891

Family Applications (1)

Application Number Title Priority Date Filing Date
CH148354D CH148354A (en) 1928-12-01 1929-11-13 Process for the preparation of an m-oxy-phenylarylamine carboxylic acid.

Country Status (1)

Country Link
CH (1) CH148354A (en)

Similar Documents

Publication Publication Date Title
CH148354A (en) Process for the preparation of an m-oxy-phenylarylamine carboxylic acid.
CH148352A (en) Process for the preparation of an m-oxy-phenylarylamine carboxylic acid.
CH148353A (en) Process for the preparation of an m-oxy-phenylarylamine carboxylic acid.
CH148355A (en) Process for the preparation of an m-oxy-phenylarylamine carboxylic acid.
CH148351A (en) Process for the preparation of an m-oxy-phenylarylamine carboxylic acid.
CH148347A (en) Process for the preparation of an m-oxy-phenylarylamine carboxylic acid.
CH148348A (en) Process for the preparation of an m-oxy-phenylarylamine carboxylic acid.
CH148350A (en) Process for the preparation of an m-oxy-phenylarylamine carboxylic acid.
CH148344A (en) Process for the preparation of an m-oxy-phenylarylamine carboxylic acid.
CH149890A (en) Process for the preparation of a substituted m-oxy-diphenylamine carboxylic acid.
DE536997C (en) Process for the preparation of 1-methyl-4-chloro-3-oxybenzene-2-carboxylic acid
CH148356A (en) Process for the preparation of an m-oxy-phenylarylamine carboxylic acid.
CH148346A (en) Process for the preparation of an m-oxy-phenylarylamine carboxylic acid.
CH148349A (en) Process for the preparation of an m-oxy-phenylarylamine carboxylic acid.
CH149891A (en) Process for the preparation of a substituted m-oxy-diphenylamine carboxylic acid.
DE568550C (en) Process for the preparation of o-oxyindolecarboxylic acids
DE525654C (en) Process for the preparation of an o-amino-p-cresol carbonic acid
CH148345A (en) Process for the preparation of an m-oxy-phenylarylamine carboxylic acid.
DE566452C (en) Process for the preparation of 7-oxy-2, 1- (tetrahydropheno-) naphthocarbazole-6-carboxylic acid
DE527395C (en) Process for the preparation of 1-methyl-4-chloro-2-oxybenzene-3-carboxylic acid
DE559333C (en) Process for the preparation of 1-oxyanthracene-2-carboxylic acid
CH153382A (en) Process for the preparation of an o-amino-p-cresol carboxylic acid.
CH162147A (en) Process for the preparation of a 1-oxyanthracene carboxylic acid.
CH147160A (en) Process for the preparation of a p-oxydiarylaminocarboxylic acid.
CH146551A (en) Process for the preparation of an m-oxy-phenylarylamine carboxylic acid.