CH100364A - Process for the preparation of a 1-oxynaphthalene-4-carboxylic acid derivative. - Google Patents

Process for the preparation of a 1-oxynaphthalene-4-carboxylic acid derivative.

Info

Publication number
CH100364A
CH100364A CH100364DA CH100364A CH 100364 A CH100364 A CH 100364A CH 100364D A CH100364D A CH 100364DA CH 100364 A CH100364 A CH 100364A
Authority
CH
Switzerland
Prior art keywords
carboxylic acid
oxynaphthalene
preparation
acid derivative
toluidide
Prior art date
Application number
Other languages
German (de)
Inventor
Gesellschaft Fuer Chemis Basel
Original Assignee
Chem Ind Basel
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 Chem Ind Basel filed Critical Chem Ind Basel
Publication of CH100364A publication Critical patent/CH100364A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C65/00—Compounds having carboxyl groups bound to carbon atoms of six—membered aromatic rings and containing any of the groups OH, O—metal, —CHO, keto, ether, groups, groups, or groups
    • C07C65/01—Compounds having carboxyl groups bound to carbon atoms of six—membered aromatic rings and containing any of the groups OH, O—metal, —CHO, keto, ether, groups, groups, or groups containing hydroxy or O-metal groups
    • C07C65/105—Compounds having carboxyl groups bound to carbon atoms of six—membered aromatic rings and containing any of the groups OH, O—metal, —CHO, keto, ether, groups, groups, or groups containing hydroxy or O-metal groups polycyclic
    • C07C65/11—Compounds having carboxyl groups bound to carbon atoms of six—membered aromatic rings and containing any of the groups OH, O—metal, —CHO, keto, ether, groups, groups, or groups containing hydroxy or O-metal groups polycyclic with carboxyl groups on a condensed ring system containing two rings
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C233/00—Carboxylic acid amides
    • C07C233/01—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms
    • C07C233/12—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by halogen atoms or by nitro or nitroso groups

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

      Zusatzpatent    zum Hauptpatent     1r.99280.       Verfahren zur Herstellung eines     1-Ogynaphtalin-4-ear        bonsäurederivates.       <B>Es</B> wurde gefunden, dass man ein     1-Oxy-          naphtalin-4-ca.rbonsäurederivat,    das     p-Tolui-          did    der     1-Oxynaphtalin-4-carbonsäure,    leicht  herstellen kann, wenn man einen     Alkylester     der     1-Oxynaphtalin-4-carbonsäure    mit     p-To-          Iuidin    erhitzt.

   Das     p-Toluidid    der     1-Oxynaph-          1-alin-4-carbonsäure    bildet ein farbloses, kri  stallinisches Pulver; es schmilzt, aus     Methyl-           <  < lkohol    umgelöst, bei 215   und ist in     Ätz-          alhalien    leicht löslich.  



  <I>Beispiel:</I>       2I)0    Teile     1-Oxynaphtalin-4-carbonsäure-          methylester    werden mit 500 Teilen     p-Tolui-          clin    12 Stunden schwach gekocht. Hierauf  giesst man in überschüssige, verdünnte     Salz-          Das    ausgeschiedene     p-Toluidicl    der         1-Oxynaphtalin-4-carbonsäure    kann zur Rei  nigung     aus    Methylalkohol umgelöst werden.



      Additional patent to main patent 1r.99280. Process for the preparation of a 1-ogynaphtalin-4-ear bonsäurederivates. <B> It </B> has been found that a 1-oxynaphthalene-4-carboxylic acid derivative, the p-toluidide of 1-oxynaphthalene-4-carboxylic acid, can easily be prepared if an alkyl ester is used 1-Oxynaphthalene-4-carboxylic acid heated with p-To-Iuidine.

   The p-toluidide of 1-oxynaph-1-alyne-4-carboxylic acid forms a colorless, crystalline powder; when redissolved from methyl alcohol, it melts at 215 and is easily soluble in caustic substances.



  <I> Example: </I> 2I) 0 parts of 1-oxynaphthalene-4-carboxylic acid methyl ester are gently boiled with 500 parts of p-toluicine for 12 hours. The precipitated p-toluidicl of 1-oxynaphthalene-4-carboxylic acid can then be redissolved from methyl alcohol for purification.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines 1-Oxy- naphtalin-4-carbonsäurederivates, des p-To- luidides der 1-Oxynaphtalin-4-carbonsäure, dadurch gekennzeichnet, dass man einen Al kylester der 1-Oxynaphtalin-4-carbonsäure mit p-Toluidin erhitzt. Das p-Toluidid der 1-Oxyna.phtalin=4-carbonsäure bildet ein farb loses, kristallinisches Pulver; es schmilzt, aus Methylalkohol umgelöst, bei 215 und ist in Ätzalkalien leicht löslich. PATENT CLAIM: Process for the preparation of a 1-oxynaphthalene-4-carboxylic acid derivative, the p-toluidide of 1-oxynaphthalene-4-carboxylic acid, characterized in that an alkyl ester of 1-oxynaphthalene-4-carboxylic acid with p- Toluidine heated. The p-toluidide of 1-Oxyna.phtalin = 4-carboxylic acid forms a colorless, crystalline powder; when redissolved from methyl alcohol, it melts at 215 and is easily soluble in caustic alkalis.
CH100364D 1922-02-10 1922-02-10 Process for the preparation of a 1-oxynaphthalene-4-carboxylic acid derivative. CH100364A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH100364T 1922-02-10
CH99280T 1922-02-10

Publications (1)

Publication Number Publication Date
CH100364A true CH100364A (en) 1923-07-16

Family

ID=25705508

Family Applications (1)

Application Number Title Priority Date Filing Date
CH100364D CH100364A (en) 1922-02-10 1922-02-10 Process for the preparation of a 1-oxynaphthalene-4-carboxylic acid derivative.

Country Status (1)

Country Link
CH (1) CH100364A (en)

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