CH225557A - Process for the production of a new condensation product. - Google Patents

Process for the production of a new condensation product.

Info

Publication number
CH225557A
CH225557A CH225557DA CH225557A CH 225557 A CH225557 A CH 225557A CH 225557D A CH225557D A CH 225557DA CH 225557 A CH225557 A CH 225557A
Authority
CH
Switzerland
Prior art keywords
condensation product
production
new condensation
new
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 CH225557A publication Critical patent/CH225557A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D277/00—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings
    • C07D277/60—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings condensed with carbocyclic rings or ring systems
    • C07D277/62—Benzothiazoles
    • C07D277/68—Benzothiazoles 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 in position 2
    • C07D277/82—Nitrogen atoms

Landscapes

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

Description

  

  Verfahren zur Herstellung eines neuen     Kondensationsproduktes.            Es    wurde gefunden,     dass    man ein neues  Kondensationsprodukt erhält, wenn man die       2-Oxynaphthalin-3-carbonsäure    in Gegenwart  von Verdünnung - und     wasserentziehenden     Mitteln auf     2-Amino-6-äthoxybenzthiazol     einwirken lässt.  



  Das neue     Kondensationsprodukt    ent  spricht der     Formel     
EMI0001.0009     
    Aus     seinen;    Lösungen in verdünnten wässeri  gen     Ätzalkalien    besitzt es eine     hervorragende     Affinität zur pflanzlichen     Faser.     



       Beispiel:     188 Teile     2-Ogynaphthalin-3-carbonsäure     und 194 Teile     2-Amino-6-äthoxybenzthiazol          werden    mit 1000 Teilen Chlorbenzol auf     75      erhitzt. In diese Mischung werden im Ver-    lauf einer Stunde 69 Teile     Phosphortrichlo-          rid        zugetropft    und hierauf zum Sieden er  hitzt, bis keine Salzsäure mehr     entwickelt     wird.

   Nach dem Abkühlen wird das     ausge-          sehiedene    Kondensationsprodukt     erbfiltriert.          Da)s    noch anhaftende Lösungsmittel wird in  Gegenwart von überschüssigem Natrium  acetat mit     Wosserd-ampf    abgeblasen; hierauf       wird    das Kondensationsprodukt     erbfiltriert,     mit Wasser gewaschen und     getroeknet.     



  Das     Chlorbenzol    kann durch andere Lö  sungsmittel, wie     ToluoI    oder     Dimethylanilin,     ersetzt werden. Statt     Phosphortrichlorid     kann z. B.     Phosphorogychlo,rid,        Thionyl-          chloridoder        Siliciumtetrachlorid    verwendet  werden.



  Process for the production of a new condensation product. It has been found that a new condensation product is obtained when the 2-oxynaphthalene-3-carboxylic acid is allowed to act on 2-amino-6-ethoxybenzothiazole in the presence of diluents and dehydrating agents.



  The new condensation product corresponds to the formula
EMI0001.0009
    From his; In solutions in dilute aqueous caustic alkalis, it has an excellent affinity for vegetable fibers.



       Example: 188 parts of 2-ogynaphthalene-3-carboxylic acid and 194 parts of 2-amino-6-ethoxybenzthiazole are heated to 75 with 1000 parts of chlorobenzene. 69 parts of phosphorus trichloride are added dropwise to this mixture over the course of an hour and then heated to the boil until hydrochloric acid is no longer evolved.

   After cooling, the precipitated condensation product is filtered off. The solvent still adhering is blown off in the presence of excess sodium acetate with a Wosserd ampf; the condensation product is then filtered off, washed with water and dried.



  The chlorobenzene can be replaced by other solvents such as toluene or dimethylaniline. Instead of phosphorus trichloride, z. B. Phosphorogychlo, rid, thionyl chloride or silicon tetrachloride can be used.

Claims (1)

PATENTANSPRUCH: Verfahren, zur Herstellung eines neuen KondensationsproJuktes,dadurch gekenn zeichnet, dass man die 2-OxynaphthaIin-3- carbonsäure in Gegenwart von Verdünnungs- und wasserentziehenden Mitteln auf 2-Amino- 6-äthogybenzthiazol einwirken lässt. PATENT CLAIM: Process for the production of a new condensation product, characterized in that the 2-oxynaphthaIine-3-carboxylic acid is allowed to act on 2-amino-6-ethogybenzthiazole in the presence of diluents and dehydrating agents. Das neue Kondensationsprodukt ent spricht der Formel EMI0002.0001 Aus seinen Lösungen in verdünnten wässeri gen Ätzalkalien besitzt es eine hervorragende Affinität zur pflanzlichen Faser. The new condensation product corresponds to the formula EMI0002.0001 From its solutions in dilute aqueous caustic alkalis, it has an excellent affinity for vegetable fibers.
CH225557D 1943-02-15 1941-02-06 Process for the production of a new condensation product. CH225557A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH225557T 1943-02-15

Publications (1)

Publication Number Publication Date
CH225557A true CH225557A (en) 1943-02-15

Family

ID=4454101

Family Applications (1)

Application Number Title Priority Date Filing Date
CH225557D CH225557A (en) 1943-02-15 1941-02-06 Process for the production of a new condensation product.

Country Status (1)

Country Link
CH (1) CH225557A (en)

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