CH149875A - Process for the preparation of a carboxylic acid arylide of the benzene series. - Google Patents

Process for the preparation of a carboxylic acid arylide of the benzene series.

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Publication number
CH149875A
CH149875A CH149875DA CH149875A CH 149875 A CH149875 A CH 149875A CH 149875D A CH149875D A CH 149875DA CH 149875 A CH149875 A CH 149875A
Authority
CH
Switzerland
Prior art keywords
preparation
carboxylic acid
cresoyl
aminophenol
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 CH149875A publication Critical patent/CH149875A/en

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Description

  

  Verfahren zur Darstellung eines     Carbousäurearylids    der     Benzolreibe.       Vorliegendes Patent bezieht sieh auf  ein Verfahren zur Darstellung von     in-          Kresoyl-m-aminobenzoyl-m-aminophenol,    da  durch gekennzeichnet,     dass    man     m-Kresotin-          säure    mit     m-Aminobenzoesäure    kondensiert  und die so gebildete     m-Kresoyl-m-amino-          benzoesäure    mit     m-Aminophenol    kondensiert.  



  Das neue Kondensationsprodukt ist ein  graues Pulver und zeigt den Schmelzpunkt  215     '.    Es ist trotz der Abwesenheit von       Sulfo-    oder freien     Karbonsäuregruppen    für  technische Verwendung in Form der     Al-          kalisa,Ize    in Wasser genügend löslich und  besitzt eine gewisse     Verwandschaft    zur  Baumwollfaser, welche es ermöglicht, Baum  wollwaren mit dem neuen Produkt zu im  prägnieren.  



  <I>Beispiel:</I>  <B>152</B> Teile     m-I#-:resotinsäure    und<B>137</B> Teile       in-Aminobenzoesäure    werden in 1200 Teile         Dimethylanilin    eingetragen; zu dem Ge  misch     lässt    man bei<B>60</B> bis<B>70 ' 60</B> Teile     Phos-          phortriehlorid    zufliessen und erhitzt schliess  lich acht Stunden lang auf<B>110'.</B> Das er  kaltete Reaktionsgemisch wird in verdünnte  Salzsäure eingetragen, der Niederschlag ab  gesaugt, mit     Sodalösung    bis zur     Alkalität     versetzt, etwa.

   noch vorhandenes     Dimethyl-          anilin    mit Wasserdampf abgeblasen und (las  Kondensationsprodukt neutral gewaschen.  Es kristallisiert aus Eisessig und schmilzt  bei<B>280'</B> unter Zersetzung.  



  <B>271</B> Teile     m'-Kresoyl-m-aminobenzoesäure     und<B>109</B> Teile     m-Aminophenol    werden in       Olleicher    Weise in     Dimetliylanilin    weiter kon  densiert und aufgearbeitet wie oben beschrie  ben. Das entstandene     m-Kresoyl-m-amino-          benzoyl-m-aminophenol    kristallisiert nicht  aus organischen Lösungsmitteln und wird  zur weiteren Reinigung in Lauge unter Zu  satz von Tierkohle gelöst, filtriert und mit  verdünnter Salzsäure gefällt.



  Process for the preparation of a carbous acid arylide of benzene grater. The present patent relates to a process for the preparation of in-cresoyl-m-aminobenzoyl-m-aminophenol, characterized in that m-cresotinic acid is condensed with m-aminobenzoic acid and the m-cresoyl-m-amino- benzoic acid condensed with m-aminophenol.



  The new condensation product is a gray powder and has a melting point of 215 '. Despite the absence of sulfo or free carboxylic acid groups, it is sufficiently soluble in water for technical use in the form of alkali, Ize and has a certain relationship to cotton fiber, which makes it possible to impregnate cotton goods with the new product.



  <I> Example: </I> <B> 152 </B> parts of m-I # -: resotinic acid and <B> 137 </B> parts of in-aminobenzoic acid are introduced into 1200 parts of dimethylaniline; At <B> 60 </B> to <B> 70 ', 60 parts of phosphorus chloride are added to the mixture and then heated to <B> 110' for eight hours. </B> That he cold reaction mixture is introduced into dilute hydrochloric acid, the precipitate is sucked off, and soda solution is added until it is alkaline.

   Any dimethylaniline that is still present is blown off with steam and washed neutral. It crystallizes from glacial acetic acid and melts at <B> 280 '</B> with decomposition.



  <B> 271 </B> parts of m'-cresoyl-m-aminobenzoic acid and <B> 109 </B> parts of m-aminophenol are further condensed in dimethylaniline in the same manner and worked up as described above. The resulting m-cresoyl-m-aminobenzoyl-m-aminophenol does not crystallize from organic solvents and is dissolved in lye with the addition of animal charcoal for further purification, filtered and precipitated with dilute hydrochloric acid.

 

Claims (1)

<B>PATENTANSPRUCH:</B> Verfahren zur Darstellung von m- Kresoyl-m-aminobenzoyl-m-aminophenol, da.- durch gekennzeichnet, dass man m-Kresotin- säure mit m-Ami#obenzoesäurp-, kondensiert und die so gebildete m-Kresoyl-m-amino- benzoesäure mit m-Aminophenol kondensiert. <B> PATENT CLAIM: </B> Process for the preparation of m-cresoyl-m-aminobenzoyl-m-aminophenol, characterized in that m-cresotinic acid is condensed with m-aminobenzoic acid, and the like m-cresoyl-m-aminobenzoic acid formed is condensed with m-aminophenol. Das neue Kondenzationsprodukt ist ein Craues Pulver und zeigt den Schmelzpunkt ZD <B>215</B> '. Es ist trotz der Abwesenheit von Sulfo- oder freien Karbonsäuregruppen für technische -Verwendung in Form der Al- kalisalze in Wasser genügend löslich und besitzt eine gewisse -Verwandseliaft zur Baumwollfaser, welche es ermöglicht, Baum wollwaren mit dem neuen Produkt zu im prägnieren. The new condensation product is a Craues powder and has a melting point of ZD <B> 215 </B> '. Despite the absence of sulfo or free carboxylic acid groups, it is sufficiently soluble in water for technical use in the form of the alkali salts and has a certain degree of compatibility with cotton fibers, which makes it possible to impregnate cotton goods with the new product. UNTERANSPRUCH, Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man die Kondensation in beiden Phasen in Geoenwart eines wasser- C entziehenden Mittels durchführt. SUBClaim, method according to patent claim, characterized in that the condensation is carried out in both phases in the presence of a water-C removing agent.
CH149875D 1928-10-31 1929-10-24 Process for the preparation of a carboxylic acid arylide of the benzene series. CH149875A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE149875X 1928-10-31
CH146258T 1929-10-24

Publications (1)

Publication Number Publication Date
CH149875A true CH149875A (en) 1931-09-30

Family

ID=25714824

Family Applications (1)

Application Number Title Priority Date Filing Date
CH149875D CH149875A (en) 1928-10-31 1929-10-24 Process for the preparation of a carboxylic acid arylide of the benzene series.

Country Status (1)

Country Link
CH (1) CH149875A (en)

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