CH199091A - Process for the production of an intermediate product. - Google Patents

Process for the production of an intermediate product.

Info

Publication number
CH199091A
CH199091A CH199091DA CH199091A CH 199091 A CH199091 A CH 199091A CH 199091D A CH199091D A CH 199091DA CH 199091 A CH199091 A CH 199091A
Authority
CH
Switzerland
Prior art keywords
production
intermediate product
condensation product
chlorohydrate
dyes
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 CH199091A publication Critical patent/CH199091A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C215/00—Compounds containing amino and hydroxy groups bound to the same carbon skeleton
    • C07C215/02—Compounds containing amino and hydroxy groups bound to the same carbon skeleton having hydroxy groups and amino groups bound to acyclic carbon atoms of the same carbon skeleton
    • C07C215/04—Compounds containing amino and hydroxy groups bound to the same carbon skeleton having hydroxy groups and amino groups bound to acyclic carbon atoms of the same carbon skeleton the carbon skeleton being saturated
    • C07C215/06—Compounds containing amino and hydroxy groups bound to the same carbon skeleton having hydroxy groups and amino groups bound to acyclic carbon atoms of the same carbon skeleton the carbon skeleton being saturated and acyclic
    • C07C215/16—Compounds containing amino and hydroxy groups bound to the same carbon skeleton having hydroxy groups and amino groups bound to acyclic carbon atoms of the same carbon skeleton the carbon skeleton being saturated and acyclic the nitrogen atom of the amino group being further bound to carbon atoms of six-membered aromatic rings

Landscapes

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

Description

  

  Verfahren zur Herstellung eines Zwischenproduktes.    Es wurde gefunden, dass man ein zur Her  stellung von Farbstoffen wertvolles Konden  sationsprodukt erhält, wenn man     1-Amino-          napht.halin    mit a,     a'-Dichlorhydrin    in Gegen  wart eines Lösungsmittels erhitzt.  



  Das Kondensationsprodukt bildet in Form  seines Chlorhydrates ein helles Pulver, das  sich in Wasser löst und das zur Herstellung  von     Farbstoffen    verwendet werden kann.    <I>Beispiel:</I>    54 Gewichtsteile     1-Aminonaphthalin    wer  den mit 100     Volumteilen        n-Butylalkohol    und  49 Gewichtsteilen a,     a'-Dichlorhydrin    gemischt  und die Mischung, zweckmässig unter Rühren  und     Luftabschluss,        resp.    Durchleiten eines       inerten    Gasstromes, z. B. gasförmiger Kohlen  säure, zum Kochen erhitzt.

   Man kocht so lange  bis die alsbald beginnende Ausscheidung des  Chlorhydrates des Kondensationsproduktes  nicht mehr zunimmt, wofür man ca. 10-12  Stunden benötigt. Man lässt darauf unter Rüh-         ren    erkalten, verdünnt die Reaktionsmasse  mit etwas Alkohol oder Aceton oder einem  Gemisch beider und     nutscht    das erhaltene  Chlorhydrat ab.  



  Man kann das Kondensationsprodukt als  Chlorhydrat direkt zur Herstellung von Farb  stoffen verwenden; man kann es aber auch  aus der wässerigen Lösung seines     Chlorhy-          drates    durch Zugabe von     Neutralisations-          mitteln,    wie z. B.     Natriumacetat,    ausscheiden.



  Process for the production of an intermediate product. It has been found that a condensation product which is valuable for the manufacture of dyes is obtained if 1-amino napht.halin is heated with a, a'-dichlorohydrin in the presence of a solvent.



  In the form of its chlorohydrate, the condensation product forms a light-colored powder that dissolves in water and which can be used to produce dyes. <I> Example: </I> 54 parts by weight of 1-aminonaphthalene who mixed the with 100 parts by volume of n-butyl alcohol and 49 parts by weight of a, a'-dichlorohydrin and the mixture, suitably with stirring and exclusion of air, respectively. Passing through an inert gas stream, e.g. B. gaseous carbon acid, heated to a boil.

   The mixture is boiled until the excretion of the chlorohydrate of the condensation product, which immediately begins, no longer increases, which takes about 10-12 hours. The mixture is then allowed to cool while stirring, the reaction mass is diluted with a little alcohol or acetone or a mixture of both and the hydrochloride obtained is filtered off with suction.



  You can use the condensation product as a hydrochloride directly for the production of dyes; but it can also be obtained from the aqueous solution of its chlorohydrate by adding neutralizing agents, such as B. sodium acetate, excrete.

Claims (1)

PATENTANSPRUCH Verfahren zur Herstellung eines Zwischen produktes, dadurch gekennzeichnet, dass man 1-Aminonaphtbalin mit a, a'-Dichlorhydrin in Gegenwart eines .Lösungsmittels erhitzt. Das erhaltene Kondensationsprodukt bildet in Form seines Chlorhydrates ein helles Pul ver, das sich in Wasser löst und das zur Herstellung von Farbstoffen verwendet wer den kann. PATENT CLAIM Process for the production of an intermediate product, characterized in that 1-aminonaphtbaline is heated with a, a'-dichlorohydrin in the presence of a solvent. The condensation product obtained forms a light-colored powder in the form of its chlorohydrate, which dissolves in water and which can be used for the production of dyes.
CH199091D 1936-09-16 1936-09-16 Process for the production of an intermediate product. CH199091A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH199091T 1936-09-16
CH195652T 1936-09-16

Publications (1)

Publication Number Publication Date
CH199091A true CH199091A (en) 1938-07-31

Family

ID=25722771

Family Applications (1)

Application Number Title Priority Date Filing Date
CH199091D CH199091A (en) 1936-09-16 1936-09-16 Process for the production of an intermediate product.

Country Status (1)

Country Link
CH (1) CH199091A (en)

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