CH221828A - Process for the production of a new condensation product. - Google Patents

Process for the production of a new condensation product.

Info

Publication number
CH221828A
CH221828A CH221828DA CH221828A CH 221828 A CH221828 A CH 221828A CH 221828D A CH221828D A CH 221828DA CH 221828 A CH221828 A CH 221828A
Authority
CH
Switzerland
Prior art keywords
condensation product
production
new condensation
new
acetic anhydride
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 CH221828A publication Critical patent/CH221828A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D235/00—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, condensed with other rings
    • C07D235/02—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, condensed with other rings condensed with carbocyclic rings or ring systems
    • C07D235/04—Benzimidazoles; Hydrogenated benzimidazoles
    • C07D235/06—Benzimidazoles; Hydrogenated benzimidazoles with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached in position 2
    • C07D235/08—Radicals containing only hydrogen and carbon atoms

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Polyamides (AREA)

Description

  

  Verfahren     zur    Herstellung     eines    neuen Kondensationsproduktes.    Es wurde gefunden, dass man zu einem  neuen     Kondensationsprodukt    .gelangt, wenn  man das     Natriumsalz    des sulfonierten     Benz-          imidazols,    welches durch Kondensation von       o-Phenylen,diamin    mit     Kokosfettsäure    und  nachfolgende     Sulfonierung    erhalten wird,  mit     Essigsäureanhydrid    bei erhöhter Tempe  ratur in Abwesenheit von Wasser behandelt.  



  Die Umsetzung wird zweckmässig beim  Siedepunkt des     Essigsäureanhydrids    vorge  nommen.  



  Das neue Kondensationsprodukt bildet  eine     bräunlichgelbe,    harzartige Masse, die  im Gegensatz zum Ausgangsmaterial in  Wasser auch bei     sehwach    saurer Reaktion.  löslich ist: Es kann als     Tegtilhilfsstoff,    z. B.  als Schaummittel, Anwendung finden.  



  <I>Beispiel:</I>  20 Gewichtsteile des     Natriumsalzes    des       sulfonierten        Benzimidazols,    welches durch  Kondensation von     o-Phenylendiamin    mit       Kokosfettsäure    und nachfolgende @Sulfonie-         rung    erhalten wird, und 100 Gewichtsteile       Essigsäureanhydrid    werden während 3 Stun  den unter     Rückfluss    gekocht.

   Man filtriert  die     Essigsäureanhydridlösung    des Reaktions  produktes von ungelösten Teilen heiss ab,       wäscht    den Rückstand mit heissem     Ess        .ig-          säureanhydrid        aus    und dampft das Filtrat  unter     vermindertem        Druck    bei     6,0    bis 70         ein.     



  Der     harzartige,    braungelbe     Rückstand    ist  im Gegensatz zum     Ausgangsmaterial    in  Wasser bei schwach saurer Reaktion klar  löslich.



  Process for the production of a new condensation product. It has been found that a new condensation product is obtained if the sodium salt of sulfonated benzimidazole, which is obtained by condensation of o-phenylene, diamine with coconut fatty acid and subsequent sulfonation, is used with acetic anhydride at an elevated temperature in the absence of water treated.



  The reaction is expediently taken at the boiling point of acetic anhydride.



  The new condensation product forms a brownish-yellow, resin-like mass, which, in contrast to the starting material in water, also undergoes a weakly acidic reaction. is soluble: It can be used as a Tegtilhilfsstoff, z. B. as a foam concentrate, use.



  <I> Example: </I> 20 parts by weight of the sodium salt of sulfonated benzimidazole, which is obtained by condensation of o-phenylenediamine with coconut fatty acid and subsequent sulfonation, and 100 parts by weight of acetic anhydride are refluxed for 3 hours.

   The acetic anhydride solution of the reaction product is filtered off from undissolved parts while hot, the residue is washed with hot acetic anhydride and the filtrate is evaporated at 6.0 to 70 under reduced pressure.



  In contrast to the starting material, the resinous, brownish yellow residue is clearly soluble in water with a weakly acidic reaction.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen Kondensationsproduktes, dadurch ,gekenn zeichnet, dass man das Natrium-salz des sul- fonierten Benzimidazols, welches durch Kon- densation von o-Phenylendiamin mit Kokos- fettsäure und nachfolgende,Sulfonierung er halten wird, PATENT CLAIM: Process for the production of a new condensation product, characterized in that the sodium salt of sulphonated benzimidazole, which is obtained by condensation of o-phenylenediamine with coconut fatty acid and subsequent sulphonation, is obtained, mit Essigsäureanhydrid bei er höhter Temperatur in Abwesenheit von Was- ser behandelt. Es kann als Textilhilfsstoff, z. B. als Schaummittel, Anwendung finden. Das neue Kondensationsprodukt bildet eine bräunlich.belbe, harza:rtibe Masse, die im Gegensatz zum Ausgangsmaterial in Wasser auch bei sehwach saurer Reaktion löslich ist. treated with acetic anhydride at an elevated temperature in the absence of water. It can be used as a textile auxiliary, e.g. B. as a foam concentrate, use. The new condensation product forms a brownish, pale, resinous mass which, in contrast to the starting material, is soluble in water even in the case of a weakly acidic reaction.
CH221828D 1940-09-27 1940-09-27 Process for the production of a new condensation product. CH221828A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH221828T 1940-09-27
CH218363T 1940-10-24

Publications (1)

Publication Number Publication Date
CH221828A true CH221828A (en) 1942-06-15

Family

ID=25726140

Family Applications (1)

Application Number Title Priority Date Filing Date
CH221828D CH221828A (en) 1940-09-27 1940-09-27 Process for the production of a new condensation product.

Country Status (1)

Country Link
CH (1) CH221828A (en)

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