CH218887A - Process for the preparation of a new hydrazine derivative. - Google Patents

Process for the preparation of a new hydrazine derivative.

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Publication number
CH218887A
CH218887A CH218887DA CH218887A CH 218887 A CH218887 A CH 218887A CH 218887D A CH218887D A CH 218887DA CH 218887 A CH218887 A CH 218887A
Authority
CH
Switzerland
Prior art keywords
hydrazine derivative
preparation
new hydrazine
mol
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 CH218887A publication Critical patent/CH218887A/en

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Description

  

  Verfahren zur Herstellung eines neuen     Hydrazinderivates.       Es wurde gefunden, dass man zu einem  neuen     Hydrazinderivat    gelangt, wenn man  1     Mol    des aus     techn.        Stearinsäure    erhält  lichen     a-Stearoyl-p-phenylhydrazins    mit     etwa     3     Mol        Glycid    umsetzt.    Die     Umsetzung    mit dem     Glycid    wird  zweckmässig bei einer<B>1000</B> übersteigenden  Temperatur, zum Beispiel bei     140-150',     vorgenommen.

      Das neue     Hydrazinderivat    ist eine bräun  lich gefärbte, feste     Masse,    deren     Löslichkeit     in Wasser bei     etwa        60-7011    ein     Maximum     erreicht. Es besitzt eine ausgesprochen egali  sierende Wirkung in Färbebädern, die saure  Wollfarbstoffe enthalten, und fällt     Sulfo-          gruppen    enthaltende     Farbstoffe    aus deren  Lösungen nicht aus.

   Es     kam)    als     Textilhilfs-          stoff,    zum Beispiel als     Egalisiermittel,    An  wendung     finden.       <I>Beispiel;</I>  3,8 Gewichtsteile     a-Stearoyl-p-phenylhy-          drazin    (hergestellt zum Beispiel durch Er-         hitzen    von     techn.        Stearinsäure    mit     Phenyl-          hydrazin    auf 160  ) werden mit 2,4 Gewichts  teilen     Glycid    so lange unter Rühren auf       140-15W1        (Innentemperatur)    erhitzt,

   bis eine  Probe der Reaktionsmasse sich     in    Wasser  unter Bildung     einer    nur, schwach getrübten  Lösung auflöst. Nach dem Erkalten stellt  die Reaktionsmasse eine     bräunlich    gefärbte,  feste Masse dar, deren     Löslichkeit        in    Wasser  bei     zirka   <B>60-700</B>     ein        Maximum    besitzt, in  dem sowohl unterhalb wie oberhalb dieser       Temperatur    sich wieder milchige Trübungen  bilden.

   Das neue Produkt besitzt ausge  sprochen egalisierende Wirkung in Färbe  bädern, die saure     Wollfarbstoffe    enthalten,  und die Lösungen desselben fällen     Sulfogrup-          pen    enthaltende     Farbstoffe    nicht.



  Process for the preparation of a new hydrazine derivative. It has been found that a new hydrazine derivative is obtained if 1 mol of the from techn. Stearic acid is obtained by converting a-stearoyl-p-phenylhydrazine with about 3 mol of glycide. The reaction with the glycide is expediently carried out at a temperature exceeding 1000, for example 140-150 °.

      The new hydrazine derivative is a brownish colored, solid mass whose solubility in water reaches a maximum at around 60-7011. It has a pronounced leveling effect in dyebaths that contain acidic wool dyes, and dyes containing sulfo groups do not precipitate from their solutions.

   It was used as a textile additive, for example as a leveling agent. <I> Example; </I> 3.8 parts by weight of α-stearoyl-p-phenylhydrazine (produced for example by heating technical stearic acid with phenylhydrazine to 160) are combined with 2.4 parts by weight of glycid so heated to 140-15W1 (internal temperature) for a long time while stirring,

   until a sample of the reaction mass dissolves in water to form a solution that is only slightly cloudy. After cooling, the reaction mass is a brownish-colored, solid mass, the solubility of which in water has a maximum at around <B> 60-700 </B>, in which milky cloudiness forms again both below and above this temperature.

   The new product has a pronounced leveling effect in dye baths that contain acidic wool dyes, and the solutions of the same do not precipitate dyes containing sulfo groups.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen Hydrazinderivates, dadurch gekennzeichnet, dass man 1 Mol des aus techn. Stearinsäure erhältlichen a-Stearoyl-p-phenylhydrazins mit etwa 3 Mol Glycid umsetzt. Das neue Hydrazinderivat ist eine bräun lich gefärbte, feste Masse, deren Löslichkeit in Wasser etwa bei 60-70 ein Maximum erreicht. PATENT CLAIM: Process for the preparation of a new hydrazine derivative, characterized in that 1 mol of the techn. Reacts stearic acid obtainable a-stearoyl-p-phenylhydrazine with about 3 mol of glycide. The new hydrazine derivative is a brownish colored, solid mass, the solubility of which in water reaches a maximum at about 60-70. Es besitzt eine ausgesprochen egalisierende Wirkung in Färbebädern, die saure Woll- farbstoffe enthalten, und fällt Sulfogruppen enthaltende Farbstoffe aus deren Lösungen nicht aus. Es kann als Textilhilfsstoff, zum Beispiel als Egalisiermittel,Anwendung finden. UNTERANSPRUCH: Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man die -Umsetzung bei einer<B>1000</B> übersteigenden Temperatur vor nimmt. It has a pronounced leveling effect in dyebaths that contain acidic wool dyes, and dyes containing sulfo groups do not precipitate from their solutions. It can be used as a textile auxiliary, for example as a leveling agent. SUBSTANTIAL CLAIM: Method according to patent claim, characterized in that the conversion is carried out at a temperature exceeding <B> 1000 </B>.
CH218887D 1940-12-24 1940-12-24 Process for the preparation of a new hydrazine derivative. CH218887A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH218887T 1940-12-24

Publications (1)

Publication Number Publication Date
CH218887A true CH218887A (en) 1942-01-15

Family

ID=4450868

Family Applications (1)

Application Number Title Priority Date Filing Date
CH218887D CH218887A (en) 1940-12-24 1940-12-24 Process for the preparation of a new hydrazine derivative.

Country Status (1)

Country Link
CH (1) CH218887A (en)

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