CH170310A - Process for the preparation of an oxycarbazole carboxylic acid arylamide. - Google Patents

Process for the preparation of an oxycarbazole carboxylic acid arylamide.

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Publication number
CH170310A
CH170310A CH170310DA CH170310A CH 170310 A CH170310 A CH 170310A CH 170310D A CH170310D A CH 170310DA CH 170310 A CH170310 A CH 170310A
Authority
CH
Switzerland
Prior art keywords
oxycarbazole
preparation
carboxylic acid
acid arylamide
arylamide
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 CH170310A publication Critical patent/CH170310A/en

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

Description

  

  Verfahren zur Darstellung eines     Oxykarbazolkarbonsäurearylamids.       Es wurde gefunden, dass man ein als  wertvolles Zwischenprodukt für die Herstellung  von Farbstoffen verwendbares     Oxykarbazol-          karbonsäurearylamid    erhält, wenn man eine  Verbindung der Formel  
EMI0001.0004     
    in der X einen bei der Reaktion sich abspal  tenden     Substituenten,    zum Beispiel -OH oder  Halogen,. bedeutet, mit     o-Anisidin    umsetzt.

    <I>Beispiel:</I>  21,2     gr        9-Methyl-2-ogykarbazol        3-karbon-          säure    und 12     gr        o-Anisidin    werden in 500     cm3          Toluol    gelöst. Bei<B>60-650</B> lässt man unter  Rühren innerhalb '/s Stunde 10,4     gr        Phos-          phortrichlorid        zutropfen,    erwärmt dann lang  sam zum Sieden und hält das Reaktions  produkt 8 Stunden bei dieser Temperatur.

    Dann macht man mit     Sodalösung    alkalisch,  bläst mit Wasserdampf alles Flüchtige ab,    saugt von dem ausgeschiedenen     Arylid    ab  und wäscht mit Wasser aus. Man erhält das       9-Methyl-2-oxykarbazol-3-karboylamino-2'-          methoxybenzol    vom F. P. 188-190  . Es  stellt ein     eyelbstiehiLy    weisses Pulver dar.



  Process for the preparation of an oxycarbazole carboxylic acid arylamide. It has been found that an oxycarbazole carboxylic acid arylamide which can be used as a valuable intermediate for the preparation of dyes is obtained if a compound of the formula
EMI0001.0004
    in which X is a substituent which splits off during the reaction, for example —OH or halogen. means, reacts with o-anisidine.

    <I> Example: </I> 21.2 g of 9-methyl-2-ogykarbazole 3-carbonic acid and 12 g of o-anisidine are dissolved in 500 cm3 of toluene. At <B> 60-650 </B>, 10.4 g 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 you make alkaline with soda solution, blow off everything volatile with steam, suck off the precipitated arylide and wash out with water. The 9-methyl-2-oxykarbazole-3-carboylamino-2'-methoxybenzene of F.P. 188-190 is obtained. It is an eyelbstiehiLy white powder.

Claims (1)

PATENTANSPRUCH Verfahren zur Darstellung eines Oxy- karbazolkarbonsäurearylamids, dadurch ge= kennzeichnet, dass man eine Verbindung der Formel EMI0001.0029 in derXeinen bei derReaktion sich abspaltenden Substituenten bedeutet, mit o-Anisidin umsetzt. Das so erhaltene neue 9-1\Iethyl-2-oxykar- bazol-'-karboylamino-2'-methoxybenzol hat den F. P. 188-190 . Es stellt ein gelbsti- chig weisses Pulver dar. PATENT CLAIM Process for the preparation of an Oxykarbazolkarbonsäurearylamids, characterized in that a compound of the formula EMI0001.0029 in which X denotes a substituent which is split off during the reaction, with o-anisidine. The new 9-1 \ Iethyl-2-oxycarbazole -'-carboylamino-2'-methoxybenzene obtained in this way has the F.P. 188-190. It is a yellowish white powder.
CH170310D 1932-01-12 1932-12-16 Process for the preparation of an oxycarbazole carboxylic acid arylamide. CH170310A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE170310X 1932-01-12
CH165824T 1936-04-25

Publications (1)

Publication Number Publication Date
CH170310A true CH170310A (en) 1934-06-30

Family

ID=25718153

Family Applications (1)

Application Number Title Priority Date Filing Date
CH170310D CH170310A (en) 1932-01-12 1932-12-16 Process for the preparation of an oxycarbazole carboxylic acid arylamide.

Country Status (1)

Country Link
CH (1) CH170310A (en)

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