CH224852A - Process for the preparation of an acylated arylsulfonamide. - Google Patents

Process for the preparation of an acylated arylsulfonamide.

Info

Publication number
CH224852A
CH224852A CH224852DA CH224852A CH 224852 A CH224852 A CH 224852A CH 224852D A CH224852D A CH 224852DA CH 224852 A CH224852 A CH 224852A
Authority
CH
Switzerland
Prior art keywords
acylated
arylsulfonamide
preparation
dichlorobenzenesulfon
tolylamide
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 CH224852A publication Critical patent/CH224852A/en

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C311/00—Amides 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
    • C07C311/15—Sulfonamides 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

  

      Terfahren    zur Herstellung eines     acylierten        Arylsulfonamides.       Gegenstand des vorliegenden Patentes ist  ein Verfahren zur Herstellung eines     acylier-          ten        Arylsulfonamids,    welches dadurch ge  kennzeichnet ist, dass man     3,4-Dichlorbenzol-          sulfon-o-tolylamid    oder ein Salz desselben  mit einem     Acetylierungsmittel    behandelt. Die  neue Verbindung ist ein farbloses Kristall  pulver vom F. 90-91  . Sie dient zur Be  kämpfung von Schädlingen der Insekten  klasse und der     Klein1ebewe1t.     



  <I>Beispiel:</I>  15 Teile     3,4-Dichlorbenzolsulfon-o-tolyl-          amid    werden in 100     Volumteilen    trockenem       Pyridin    gelöst, mit 9 Teilen     Acetylchlorid     versetzt und 24 Stunden auf 80-90   er  wärmt. Nach dem Verjagen des     Pyridins     mit Wasserdampf nimmt man den Rück  stand in Äther auf, wäscht mit stark ver  dünnter Natronlauge und anschliessend mit  Wasser. Nach dem Verdampfen des Äthers  erhält man das 3,4-Dichlorbenzolsulfon-o-         tolyl-acetamid.    Es zeigt nach dem Um  kristallisieren aus     wässrigem    Alkohol einen  Schmelzpunkt von 90-91   und besitzt fol  gende Konstitution:  
EMI0001.0019     




      The process of making an acylated aryl sulfonamide. The present patent relates to a process for the preparation of an acylated arylsulfonamide, which is characterized in that 3,4-dichlorobenzenesulfone-o-tolylamide or a salt thereof is treated with an acetylating agent. The new compound is a colorless crystal powder from F. 90-91. It is used to control pests of the insect class and small animals.



  <I> Example: </I> 15 parts of 3,4-dichlorobenzenesulfon-o-tolylamide are dissolved in 100 parts by volume of dry pyridine, 9 parts of acetyl chloride are added and the mixture is heated to 80-90 for 24 hours. After the pyridine has been chased away with steam, the residue is taken up in ether, washed with very dilute sodium hydroxide solution and then with water. After evaporation of the ether, 3,4-dichlorobenzenesulfon-o-tolyl-acetamide is obtained. After recrystallizing from aqueous alcohol, it has a melting point of 90-91 and has the following constitution:
EMI0001.0019

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines acylier- ten Arylsulfonamids, dadurch gekennzeich net, dass man 3,4-Dichlorbenzolsulfon-o-tolyl- amid oder ein Salz desselben mit einem Acetylierungsmittel behandelt. Die neue Verbindung ist ein farbloses Kristallpulver vom F. 90-91 . Sie dient zur Bekämpfung von Schädlingen der Insek tenklasse und der Kleinlebewelt. Claim: Process for the production of an acylated arylsulfonamide, characterized in that 3,4-dichlorobenzenesulfon-o-tolylamide or a salt thereof is treated with an acetylating agent. The new compound is a colorless crystal powder from F. 90-91. It is used to control pests of the insect class and small organisms.
CH224852D 1940-02-02 1940-02-02 Process for the preparation of an acylated arylsulfonamide. CH224852A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH220746T 1940-02-02
CH224852T 1940-02-02

Publications (1)

Publication Number Publication Date
CH224852A true CH224852A (en) 1942-12-15

Family

ID=25726488

Family Applications (1)

Application Number Title Priority Date Filing Date
CH224852D CH224852A (en) 1940-02-02 1940-02-02 Process for the preparation of an acylated arylsulfonamide.

Country Status (1)

Country Link
CH (1) CH224852A (en)

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