CH195652A - Process for the production of an intermediate product. - Google Patents

Process for the production of an intermediate product.

Info

Publication number
CH195652A
CH195652A CH195652DA CH195652A CH 195652 A CH195652 A CH 195652A CH 195652D A CH195652D A CH 195652DA CH 195652 A CH195652 A CH 195652A
Authority
CH
Switzerland
Prior art keywords
production
intermediate product
chlorohydrate
mixture
condensation product
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 CH195652A publication Critical patent/CH195652A/en

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C215/00Compounds containing amino and hydroxy groups bound to the same carbon skeleton
    • C07C215/02Compounds 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
    • C07C215/04Compounds 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
    • C07C215/06Compounds 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
    • C07C215/16Compounds 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

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-5-          oxynaphthalin    mit     a,a'-@d'ichlorhydrin,    zweck  mässig in Gegenwart eines     Lösungsmittels,        er-          hitzt.     



  Das Kondensationsprodukt bildet in Form  seines Chlorhydrates ein helles Pulver, das  sich in Wasser löst und     das    zur Herstellung  von Farbstoffen verwendet werden kann.  



       Beispiel:     60 Gewichtsteile     1-Amino-5-oxynaphtha-          lin    werden mit 100     Volumteilen    n -     Butyl-          alkohol    und     -49    Gewichtsteilen.     a,ä        -Dichlor-          hydrin    gemischt und die Mischung, zweck  mässig unter Rühren     und        Luftabschluss,    re  spektive Durchleiten eines     inerten    Gasstro  mes, z. B. gasförmiger Kohlensäure, zum  Kochen erhitzt.

   Man kocht solange,     bis    die       alsbald    beginnende Ausscheidung des     Chlor-          hydrates    des     Kondensatäonaproiduktes    nicht  mehr zunimmt, wofür man zirka 10 bis     12     Munden benötigt. Man     lässt    darauf unter  Rühren erkalten, verdünnt die     Reaktions-          masse    mit etwas Alkohol oder     Aceton    oder    einem Gemisch beider und     nutscht    das er  haltene 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     Chlor-          hydrates    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 useful for the production of dyes is obtained if 1-amino-5-oxynaphthalene is heated with a, a '- @ d'ichlorohydrin, expediently 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.



       Example: 60 parts by weight of 1-amino-5-oxynaphthalene are mixed with 100 parts by volume of n-butyl alcohol and -49 parts by weight. a, ä -Dichlorohydrin mixed and the mixture, expediently with stirring and exclusion of air, re spective passage of an inert Gasstro mes, z. B. gaseous carbonic acid heated to a boil.

   The mixture is boiled until the excretion of the chlorohydrate of the condensate aproids, which immediately begins, no longer increases, for which about 10 to 12 mouths are required. The mixture is then allowed to cool while stirring, the reaction mixture 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 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)

PATENTA<B>N</B>SPRUCH Verfahren zur Herstellung eines Zwi- s c 'henproc luktes, dadurch gekennzeichnet, dass man 1-Amino-5-oxynaphth@ahn mit a,ä -Di- chlorhydrin erhitzt. Das erhaltene Kondensationsprodukt bil det in Form seines Chlorhydrates ein helles Pulver, -das sich in Wasser löst und das zur Herstellung von Farbstoffen verwendet wer den kann. PATENTA <B> N </B> SPRUCH Process for producing an intermediate product, characterized in that 1-amino-5-oxynaphth @ ahn is heated with α, α -dichlorohydrin. The condensation product obtained forms a light-colored powder in the form of its chlorohydrate, which dissolves in water and which can be used to produce dyes. UNTERANSPRUCH: Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man in Gegenwart eines Lösungsmittels arbeitet. SUBCLAIM: Process according to claim, characterized in that one works in the presence of a solvent.
CH195652D 1936-09-16 1936-09-16 Process for the production of an intermediate product. CH195652A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
CH195652A true CH195652A (en) 1938-02-15

Family

ID=4440044

Family Applications (1)

Application Number Title Priority Date Filing Date
CH195652D CH195652A (en) 1936-09-16 1936-09-16 Process for the production of an intermediate product.

Country Status (1)

Country Link
CH (1) CH195652A (en)

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