CH224847A - Process for the preparation of an acylated arylsulfonamide. - Google Patents

Process for the preparation of an acylated arylsulfonamide.

Info

Publication number
CH224847A
CH224847A CH224847DA CH224847A CH 224847 A CH224847 A CH 224847A CH 224847D A CH224847D A CH 224847DA CH 224847 A CH224847 A CH 224847A
Authority
CH
Switzerland
Prior art keywords
acylated
arylsulfonamide
preparation
fatty acid
palm kernel
Prior art date
Application number
Other languages
German (de)
Inventor
A-G J R Geigy
Original Assignee
Geigy Ag J R
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 Geigy Ag J R filed Critical Geigy Ag J R
Publication of CH224847A publication Critical patent/CH224847A/en

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Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C311/00Amides of sulfonic acids, i.e. compounds having singly-bound oxygen atoms of sulfo groups replaced by nitrogen atoms, not being part of nitro or nitroso groups
    • C07C311/15Sulfonamides having sulfur atoms of sulfonamide groups bound to carbon atoms of six-membered aromatic rings

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

Description

  

  Verfahren zur Herstellung eines     aeylierten        Arylsulfonamides.       Gegenstand des vorliegenden Patentes ist  ein Verfahren zur Herstellung eines     acy-          lierten        Arylsulfonamids,    welches dadurch  gekennzeichnet ist, dass     3,4-Dichlorbenzol-          sulfonmethylamid    oder ein Salz desselben  mit     Palmkernfettsäurechlorid    umgesetzt  wird. Die neue Verbindung ist eine weisse,  kristallisierte Masse. Sie dient zur Bekämp  fung von Schädlingen der Insektenklasse  und der Kleinlebewelt.  



  <I>Beispiel:</I>  120 Teile     3,4-Dichlorbenzolsulfonmethyl-          amid    werden in 300     Volumteilen    Benzol ge  löst, mit<B>125</B> Teilen     PalmL-ernfettsäurechlo-          rid    und 5 Teilen Kupferpulver versetzt und  8 Stunden am     Rückfluss    gekocht.

   Nach dem  Verjagen des Benzols mit Wasserdampf wird  nach dem Erkalten das in     Wasser    unlös  liche     3,4-Dichlorbenzolsulfonpalmkernfett-          säuremethylamid        abfiltriert.    Das Rohpro  dukt wird in Äther aufgenommen, mit ver  dünnter Natronlauge geschüttelt und mit  Wasser     ausgewasehen.    Nach dem Trocknen  und Verdampfen des Äthers     hinterbleibt       eine weisse kristallisierte Masse. F. 45 bis  48  .  



  Durch Zusatz von Katalysatoren oder säure  bindenden Mitteln kann bei der     Acylierung     des freien Sulfonamids mit     Palmkernfett-          säurechlorid    die Ausbeute wesentlich verbes  sert werden; es können Verwendung finden:  Kupferpulver,     Zinntetrachlorid,    Aluminium  chlorid, Eisenchlorid,     Berylliumchlorid     oder     calc.    Soda,     Calciumcarbonat,        Pyridin,          Dimethylanilin        etc.    Statt des freien Sul  fonamids kann man mit Vorteil zum Bei  spiel das     Natriumsalz    verwenden.



  Process for the preparation of an arylated aryl sulfonamide. The subject matter of the present patent is a process for the production of an acylated arylsulfonamide, which is characterized in that 3,4-dichlorobenzenesulfonemethylamide or a salt thereof is reacted with palm kernel fatty acid chloride. The new connection is a white, crystallized mass. It is used to control pests of the insect class and small organisms.



  <I> Example: </I> 120 parts of 3,4-dichlorobenzenesulfonmethyl amide are dissolved in 300 parts by volume of benzene, and <B> 125 </B> parts of palm oil and 5 parts of copper powder are added and 8 hours on Boiled under reflux.

   After the benzene has been chased off with steam, the water-insoluble 3,4-dichlorobenzenesulfone palm kernel fatty acid methylamide is filtered off after cooling. The raw product is taken up in ether, shaken with dilute sodium hydroxide solution and washed out with water. After the ether has dried and evaporated, a white crystallized mass remains. F. 45 to 48.



  By adding catalysts or acid-binding agents, the yield can be significantly improved in the acylation of the free sulfonamide with palm kernel fatty acid chloride; it can be used: copper powder, tin tetrachloride, aluminum chloride, iron chloride, beryllium chloride or calc. Soda, calcium carbonate, pyridine, dimethylaniline, etc. Instead of the free sulphonamide, it is advantageous to use the sodium salt, for example.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines acylier- ten Arylsulfonamids, dadurch gekennzeich net, dass man 3,4-Dichlorbenzolsulfonmethyl- amid oder ein Salz desselben mit Palmkern fettsäurechlorid umsetzt. Die neue Verbin dung ist eine weisse, kristallisierte Masse. Sie dient zur Bekämpfung von Schädlin gen der Insektenklasse und der Kleinlebe welt. PATENT CLAIM: Process for the production of an acylated aryl sulfonamide, characterized in that 3,4-dichlorobenzenesulfonmethyl amide or a salt thereof is reacted with palm kernel fatty acid chloride. The new compound is a white, crystallized mass. It is used to control pests of the insect class and small organisms.
CH224847D 1940-02-02 1940-02-02 Process for the preparation of an acylated arylsulfonamide. CH224847A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH224847T 1940-02-02
CH220746T 1940-02-02

Publications (1)

Publication Number Publication Date
CH224847A true CH224847A (en) 1942-12-15

Family

ID=25726483

Family Applications (1)

Application Number Title Priority Date Filing Date
CH224847D CH224847A (en) 1940-02-02 1940-02-02 Process for the preparation of an acylated arylsulfonamide.

Country Status (1)

Country Link
CH (1) CH224847A (en)

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