CH198708A - Process for the production of a condensation product. - Google Patents

Process for the production of a condensation product.

Info

Publication number
CH198708A
CH198708A CH198708DA CH198708A CH 198708 A CH198708 A CH 198708A CH 198708D A CH198708D A CH 198708DA CH 198708 A CH198708 A CH 198708A
Authority
CH
Switzerland
Prior art keywords
condensation product
production
azimidobenzene
new condensation
amino
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 CH198708A publication Critical patent/CH198708A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
    • C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
    • C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
    • C07D213/60—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D213/72—Nitrogen atoms
    • C07D213/73—Unsubstituted amino or imino radicals
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D249/00—Heterocyclic compounds containing five-membered rings having three nitrogen atoms as the only ring hetero atoms
    • C07D249/16—Heterocyclic compounds containing five-membered rings having three nitrogen atoms as the only ring hetero atoms condensed with carbocyclic rings or ring systems
    • C07D249/18—Benzotriazoles
    • C07D249/20—Benzotriazoles with aryl radicals directly attached in position 2

Landscapes

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

Description

  

  Verfahren zur Herstellung eines Kondensationsproduktes.    Es wurde gefunden, dass man ein neues  Kondensationsprodukt erhält, wenn man 5       Amino-2-(4'methoxy)-phenylpsetrdo-azimido-          benzol    mit     Acetessigester    kondensiert. Das  neue Kondensationsprodukt stellt ein weisses  Pulver dar, das sich leicht in verdünnten  Alkalien löst, aus Alkohol umkristallisiert  bei 163   schmilzt und ein wertvolles Zwi  schenprodukt zur Herstellung von Farbstoffen  darstellt.

      <I>Beispiel:</I>    24 Teile     5-Amino-Z-(4'-methoxy)-phenyl-          pseudo-azimidobenzol    werden in 200 Teilen  Chlorbenzol nach Zusatz einiger Tropfen     Di-          äthylanilin    am absteigenden Kühler     znm    Ko  chen erhitzt. Man lässt das Chlorbenzol ab  destillieren und gibt dann langsam 20 Teile       Acetessigester    zu; man kondensiert 2 Stun  den unter     Abdestillieren    des gebildeten Alko  hols und von etwas Chlorbenzol.

   Nach be-         endeter    Kondensation lässt man erkalten, de  stilliert das Chlorbenzol mit Wasserdampf ab,  löst das     abgenutschte,    zurückgebliebene Kon  densationsprodukt aus verdünnter Lauge um  und fällt es nach dem Filtrieren von etwai  gen Verunreinigungen mit verdünnter Salz  säure wieder aus.



  Process for the production of a condensation product. It has been found that a new condensation product is obtained when 5-amino-2- (4'methoxy) -phenylpsetrdo-azimidobenzene is condensed with acetoacetic ester. The new condensation product is a white powder that dissolves easily in dilute alkalis, recrystallized from alcohol, melts at 163 and is a valuable intermediate product for the manufacture of dyes.

      <I> Example: </I> 24 parts of 5-amino-Z- (4'-methoxy) -phenyl-pseudo-azimidobenzene are heated in 200 parts of chlorobenzene after adding a few drops of diethylaniline on the descending condenser while cooking. The chlorobenzene is allowed to distill off and then 20 parts of acetoacetic ester are slowly added; condensation is carried out for 2 hours while distilling off the alcohol formed and some chlorobenzene.

   When the condensation has ended, the mixture is allowed to cool, the chlorobenzene is distilled off with steam, the condensation product that has been sucked off from the dilute lye is dissolved and, after any impurities have been filtered off, it is precipitated again with dilute hydrochloric acid.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen Kon densationsproduktes, dadurch gekennzeichnet, dassman 5-Amino-2.(4'.metboxy).phenylpseudo. azimidobenzol mit Acetessigester kondensiert. Das neue Kondensationsprodukt stellt ein wei sses Pulver dar, das sich leicht in verdünnten Alkalien iöst, ans Alkohol umkristallisiert bei 163 schmilzt und ein wertvolles Zwi schenprodukt zur Herstellung von Farbstoffen darstellt. PATENT CLAIM: Process for the production of a new condensation product, characterized in that 5-amino-2. (4'.metboxy) .phenylpseudo. azimidobenzene condensed with acetoacetic ester. The new condensation product is a white powder that dissolves easily in dilute alkalis, recrystallized from alcohol, melts at 163 and is a valuable intermediate in the manufacture of dyes.
CH198708D 1936-07-14 1936-07-14 Process for the production of a condensation product. CH198708A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH198708T 1936-07-14

Publications (1)

Publication Number Publication Date
CH198708A true CH198708A (en) 1938-07-15

Family

ID=4441466

Family Applications (1)

Application Number Title Priority Date Filing Date
CH198708D CH198708A (en) 1936-07-14 1936-07-14 Process for the production of a condensation product.

Country Status (1)

Country Link
CH (1) CH198708A (en)

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