CH233745A - Process for the preparation of a condensation product of a 1-aminoaryl-5-pyrazolone-4-sulfonic acid. - Google Patents

Process for the preparation of a condensation product of a 1-aminoaryl-5-pyrazolone-4-sulfonic acid.

Info

Publication number
CH233745A
CH233745A CH233745DA CH233745A CH 233745 A CH233745 A CH 233745A CH 233745D A CH233745D A CH 233745DA CH 233745 A CH233745 A CH 233745A
Authority
CH
Switzerland
Prior art keywords
sep
sulfonic acid
aminoaryl
pyrazolone
condensation product
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 CH233745A publication Critical patent/CH233745A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D403/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00
    • C07D403/14—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00 containing three or more hetero rings

Landscapes

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

Description

  

  Verfahren zur Herstellung eines Kondensationsproduktes einer       1-Aminoaryl-5-pyrazolon-4-sulfonsäure.            Gegenstand        vorliegender        Erfindung        ist     ein Verfahren zur Herstellung eines Konden  sationsproduktes einer     1-Amincaryl-5-pyrazo-          lon-4-sulfonssäure.    Das Verfahren ist dadurch       gekennzeichnet,        d#%ss    man 2     Mol        1-(4'-Amino,-          phenyl)    -     3-,

  methyl-    5     -pyrazolon-4-sulf        onsäure     mit 1     Mol        Cya-nurchlo.rid    zur Umsetzung       bringt.     



       Die    neue Verbindung stellt als     Natrium-          salz    ein weisses     Pulver    dar. Sie     isst        ein    wert  volles     Zwischenprodukt    für die Herstellung  von Farbstoffen.

      <I>Beispiel:</I>       Eins        neutrale    Lösung von 53,8     Gewichts,-          teilen    1- (4'-     Aminophenyl)    - 3 -     methyl    - 5 -     pyr-          azalon-4-siuHonsäure    lässt man bei ungefähr       25-3Q     zu einer     Suspension    von 18,5     Ge-          wichtstegen        Cyanurchlorid    in     wässerigem          Aceton,

          laufen.        Danach        wird    die     kongosaure     Reaktion durch Zugabe von     Natriumcarbonat          bis    zur ;sehwach     alkaLschen        Reaktion    ab  gestumpft.

   Das     Natriumsalz    des     Kondensa-          tionspro:d\aktes        wird        durch    Zugabe von     Na-          trium:chlorid        als        :amorpher    Niederschlag     ge-          fällt.    In trockenem Zustand ist es     ein        weisses          Pulver    und besitzt die     folgende        Zusammen-          setzung     
EMI0001.0066     




  Process for the preparation of a condensation product of a 1-aminoaryl-5-pyrazolone-4-sulfonic acid. The present invention relates to a process for the preparation of a condensation product of a 1-amine-caryl-5-pyrazolone-4-sulfonic acid. The process is characterized in that 2 moles of 1- (4'-amino, - phenyl) - 3-,

  methyl 5-pyrazolone-4-sulfonic acid with 1 mole of Cya-nurchlo.rid to implement.



       The new compound is a white powder in the form of sodium salt. It is a valuable intermediate product for the manufacture of dyes.

      <I> Example: </I> A neutral solution of 53.8 parts by weight of 1- (4'-aminophenyl) - 3 - methyl - 5 - pyrazalone-4-siuHonic acid is allowed at about 25-3Q a suspension of 18.5 parts by weight of cyanuric chloride in aqueous acetone,

          to run. The Congo acidic reaction is then blunted by adding sodium carbonate to the point of a viscous alkaline reaction.

   The sodium salt of the condensation process is precipitated as an amorphous precipitate by adding sodium: chloride. When dry it is a white powder and has the following composition
EMI0001.0066

Claims (1)

EMI0002.0001 PATENTANSPRUCH: <tb> Verfahren <SEP> zur <SEP> Herstellung <SEP> eines <SEP> Konden sationssproduktas <SEP> einer <SEP> 1-Aminoaryl-5-pyr azolon-4-sulfo#nsä,ure, <SEP> dadurch <SEP> gekennzeich, net, <SEP> dassr <SEP> man <SEP> 2 <SEP> DZol <SEP> 1-(4'-Amino#phenyl)-3 methyl-5-pyrazolo#n-4-s#ulfonsäure <SEP> mit <SEP> 1 <SEP> <B>3101</B> <tb> Cyanurchlorid <SEP> zur <SEP> Umsetzung <SEP> bring.. Die neue Verbindung stellt ais Natrium salz ein weisses Pulver dar. Sie ist ein wert volles Zwischenprodukt für die Herstellung" von Farbstoffen. EMI0002.0001 PATENT CLAIM: <tb> Process <SEP> for <SEP> production <SEP> of a <SEP> condensation product <SEP> of a <SEP> 1-aminoaryl-5-pyrazolon-4-sulfo # nsä, ure, <SEP> thereby < SEP> marked, net, <SEP> thatr <SEP> man <SEP> 2 <SEP> DZol <SEP> 1- (4'-Amino # phenyl) -3 methyl-5-pyrazolo # n-4-s # sulfonic acid <SEP> with <SEP> 1 <SEP> <B> 3101 </B> <tb> Cyanuric chloride <SEP> for <SEP> conversion <SEP> bring .. The new compound is a white powder as sodium salt. It is a valuable intermediate product for the production of "dyes.
CH233745D 1939-06-08 1941-06-12 Process for the preparation of a condensation product of a 1-aminoaryl-5-pyrazolone-4-sulfonic acid. CH233745A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE233745X 1939-06-08
CH229424T 1941-06-12

Publications (1)

Publication Number Publication Date
CH233745A true CH233745A (en) 1944-08-15

Family

ID=25727351

Family Applications (1)

Application Number Title Priority Date Filing Date
CH233745D CH233745A (en) 1939-06-08 1941-06-12 Process for the preparation of a condensation product of a 1-aminoaryl-5-pyrazolone-4-sulfonic acid.

Country Status (1)

Country Link
CH (1) CH233745A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2618636A (en) * 1948-08-24 1952-11-18 Gen Aniline & Film Corp Bis(2-morpholino-4-amino-1,3,5-triazyl-(6)-)-4,4'-diaminostilbene sulfonic and carboxylic acids

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2618636A (en) * 1948-08-24 1952-11-18 Gen Aniline & Film Corp Bis(2-morpholino-4-amino-1,3,5-triazyl-(6)-)-4,4'-diaminostilbene sulfonic and carboxylic acids

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