CH223217A - Process for the preparation of a new benzimidazole derivative. - Google Patents

Process for the preparation of a new benzimidazole derivative.

Info

Publication number
CH223217A
CH223217A CH223217DA CH223217A CH 223217 A CH223217 A CH 223217A CH 223217D A CH223217D A CH 223217DA CH 223217 A CH223217 A CH 223217A
Authority
CH
Switzerland
Prior art keywords
benzimidazole derivative
new benzimidazole
acid
preparation
new
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 CH223217A publication Critical patent/CH223217A/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)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Plural Heterocyclic Compounds (AREA)

Description

  

      Terfahren    zur Herstellung eines neuen     Benzimidazolderivates.       Es wurde gefunden, dass man zu einem  neuen     Benzimidazolderivat    gelangt, wenn  man     ss-undecylbenzimidazolsulfonsaures    Na  trium mit dem     Chlorameisensäureester    des       Glycerinacetons    umsetzt.  



  Die Umsetzung wird zweckmässig in der  Wärme, z. B. bei 50 bis<B>60',</B> vorteilhaft in  Gegenwart eines säurebindenden Mittels, wie       Natriumbicarbonat,    vorgenommen.  



  Das so erhältliche neue     Benzimidazolderi-          vat    ist ein annähernd farbloses Pulver, das  von Wasser zu einer klaren, gegen Salzsäure  beständigen Lösung aufgenommen wird. Es  kann als     Tegtilhilfsstoff,    z. B. als Schaum  mittel, Anwendung finden.  



  <I>Beispiel:</I>  374 Teile     ,u-undecylbenzimidazolsulfon-          saures    Natrium werden mit 85 Teilen     Na-          triumbicarbonat    in 2300 Teilen Wasser bei    50 bis 55   verrührt und innerhalb     11i2    Stun  den mit 200 Teilen des in bekannter Weise  hergestellten     Chlorameisensäureesters    des       Glycerinacetons    versetzt. Nach     halbstündigbm          Weiterrühren    bei 55   wird die schwach alka  lisch reagierende, klare Lösung bei<B>100'</B>     im     Vakuum eingedampft.

   Der erhaltene Rück  stand     bildetein    annähernd farbloses Pulver,  das sich in Wasser klar löst. Die wässerige  Lösung bleibt klar und schäumt noch sehr  gut beim Ansäuern mit Salzsäure, während  das Ausgangsmaterial aus wässeriger Lösung  beim Ansäuern mit Salzsäure vollständig aus  gefällt wird.



      Proceeding to manufacture a new benzimidazole derivative. It has been found that a new benzimidazole derivative is obtained if sodium ss-undecylbenzimidazolesulfonic acid is reacted with the chloroformic acid ester of glycerol acetone.



  The implementation is expediently in the heat, for. B. at 50 to <B> 60 ', </B> advantageously in the presence of an acid-binding agent such as sodium bicarbonate.



  The new benzimidazole derivative obtained in this way is an almost colorless powder that is absorbed by water to form a clear solution that is resistant to hydrochloric acid. It can be used as a Tegtilhilfsstoff, z. B. as a foam medium, find application.



  <I> Example: </I> 374 parts of u-undecylbenzimidazolesulfonic acid sodium are stirred with 85 parts of sodium bicarbonate in 2300 parts of water at 50 to 55 and within 11.12 hours with 200 parts of the chloroformic acid ester of glycerol acetone prepared in a known manner offset. After stirring for a further half hour at 55, the slightly alkaline, clear solution is evaporated at <B> 100 '</B> in a vacuum.

   The residue obtained forms an almost colorless powder which dissolves clearly in water. The aqueous solution remains clear and foams very well when acidified with hydrochloric acid, while the starting material from aqueous solution is completely precipitated when acidified with hydrochloric acid.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen Benzimidazolderivates, dadurch gekennzeich net, dass man @c-undeeylbenzimidazolsulfon- saures Natrium mit dem Chlorameisensäure ester des Glycerinacetons umsetzt. Das so erhaltene neue Benzimidazolderi- vat ist ein annähernd farbloses Pulver, das von Wasser zu einer klaren, gegen Salzsäure beständigen Lösung aufgenommen wird. Es kann als Textilhilfsstoff, z. B, als Schaum mittel, Anwendung finden. PATENT CLAIM: Process for the production of a new benzimidazole derivative, characterized in that @ c-undeeylbenzimidazole sulfonic acid is reacted with the chloroformic acid ester of glycerol acetone. The new benzimidazole derivative obtained in this way is an almost colorless powder which is absorbed by water to form a clear solution resistant to hydrochloric acid. It can be used as a textile auxiliary, e.g. B, as a foam medium, use. UNTERANSPRUCH: Verfahren nach Patentanspruch, dadurch gekennzeichnet, daB man in Gegenwart eines säurebindenden Mittels arbeitet. SUB-CLAIM: Process according to patent claim, characterized in that one works in the presence of an acid-binding agent.
CH223217D 1940-10-24 1940-10-24 Process for the preparation of a new benzimidazole derivative. CH223217A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH218363T 1940-10-24
CH223217T 1940-10-24

Publications (1)

Publication Number Publication Date
CH223217A true CH223217A (en) 1942-08-31

Family

ID=25726141

Family Applications (1)

Application Number Title Priority Date Filing Date
CH223217D CH223217A (en) 1940-10-24 1940-10-24 Process for the preparation of a new benzimidazole derivative.

Country Status (1)

Country Link
CH (1) CH223217A (en)

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