CH170314A - Process for the preparation of an oxycarbazole carboxylic acid aryl amide. - Google Patents

Process for the preparation of an oxycarbazole carboxylic acid aryl amide.

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Publication number
CH170314A
CH170314A CH170314DA CH170314A CH 170314 A CH170314 A CH 170314A CH 170314D A CH170314D A CH 170314DA CH 170314 A CH170314 A CH 170314A
Authority
CH
Switzerland
Prior art keywords
preparation
oxycarbazole
carboxylic acid
acid aryl
aryl amide
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 CH170314A publication Critical patent/CH170314A/en

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

Description

  

  Verfahren zur Darstellung eines     Oxycarbazolcarbonsäurearylamids.       Es wurde gefunden, dass man ein als wert  volles     Zwischenprodukt    für die Herstellung  von     Farbstoffen    verwendbares     Oxycarbazol-          oarbonsäurearylamid    erhält, wenn man eine  Verbindung der Formel  
EMI0001.0006     
    in der X einen bei der Reaktion sich abspal  tenden     Substituenten,    zum Beispiel -OH  oder Halogen, bedeutet, mit     o-Methoxy-p-          chloranilin    umsetzt.  



  <I>Beispiel:</I>  42,1     gr        9-Methyl-2-oxycarbazol-3-carbon-          säure    und 18     gr        1-Amino-2-methoxy-4-chlor-          benzol    werden in 500 cm'     Toluol    gelöst. Bei  <B>60-650</B> lässt man unter Rühren innerhalb       '/s    Stunde 7     gr        Phosphortrichlorid        zutropfen,     erwärmt dann langsam zum Sieden und hält  das Reaktionsprodukt 8 Stunden bei dieser  Temperatur.

   Dann     macbt    man mit     Sodalö-          sung    alkalisch, bläst mit Wasserdampf alles    Flüchtige ab, saugt von dem ausgeschiedenen       Arylid    ab und wäscht mit Wasser aus. Man  erhält das     9-@Zethyl-2-oxycarbazol-3-carboyl-          amino-2'-methoxy-4'-chlorbenzol    vom F. P.  223   in Form eines     gelbstichig    weissen Pulvers.



  Process for the preparation of an oxycarbazolecarboxylic acid arylamide. It has been found that an oxycarbazole arylamide which can be used as a valuable intermediate for the preparation of dyes is obtained if a compound of the formula
EMI0001.0006
    in which X is a substituent which splits off during the reaction, for example —OH or halogen, is reacted with o-methoxy-p-chloroaniline.



  <I> Example: </I> 42.1 g of 9-methyl-2-oxycarbazole-3-carboxylic acid and 18 g of 1-amino-2-methoxy-4-chlorobenzene are dissolved in 500 cm of toluene. At <B> 60-650 </B>, 7 grams of phosphorus trichloride are added dropwise with stirring over an hour, then slowly heated to the boil and the reaction product is kept at this temperature for 8 hours.

   Then one macerates alkaline with soda solution, blows off everything volatile with steam, sucks off the precipitated arylide and rinses with water. The 9- @ zethyl-2-oxycarbazole-3-carboylamino-2'-methoxy-4'-chlorobenzene from F. P. 223 is obtained in the form of a yellowish white powder.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines Oxycar- bazolearbonsäurearylamids, dadurch gekenn zeichnet, dass man eine Verbindung der Formel EMI0001.0031 in der g einen bei der Reaktion sich abspal tenden Substituenten bedeutet mit o-Methoxy- p-chloranilin umsetzt. Das neue 9-Methyl-2-oxycarbazol-3-carbo- ylamino-2'-methoxy-4'-chlorbenzol hat den F. P. 2230. Es stellt ein gelbstichig weisses Pulver dar. PATENT CLAIM: Process for the preparation of an Oxycar- bazolearbonsäurearylamids, characterized in that a compound of the formula EMI0001.0031 in the g means a substituent which splits off during the reaction with o-methoxy-p-chloroaniline. The new 9-methyl-2-oxycarbazol-3-carbo-ylamino-2'-methoxy-4'-chlorobenzene has the F. P. 2230. It is a yellowish white powder.
CH170314D 1932-01-12 1932-12-16 Process for the preparation of an oxycarbazole carboxylic acid aryl amide. CH170314A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE170314X 1932-01-12
CH165824T 1936-04-25

Publications (1)

Publication Number Publication Date
CH170314A true CH170314A (en) 1934-06-30

Family

ID=25718157

Family Applications (1)

Application Number Title Priority Date Filing Date
CH170314D CH170314A (en) 1932-01-12 1932-12-16 Process for the preparation of an oxycarbazole carboxylic acid aryl amide.

Country Status (1)

Country Link
CH (1) CH170314A (en)

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