CH206632A - Process for preparing an aminobenzenesulfonic acid amide compound. - Google Patents

Process for preparing an aminobenzenesulfonic acid amide compound.

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Publication number
CH206632A
CH206632A CH206632DA CH206632A CH 206632 A CH206632 A CH 206632A CH 206632D A CH206632D A CH 206632DA CH 206632 A CH206632 A CH 206632A
Authority
CH
Switzerland
Prior art keywords
acid amide
amide compound
preparing
aminobenzenesulfonic acid
ammonia
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellsc Farbenindustrie
Original Assignee
Ig Farbenindustrie Ag
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 Ig Farbenindustrie Ag filed Critical Ig Farbenindustrie Ag
Publication of CH206632A publication Critical patent/CH206632A/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
    • C07C311/30Sulfonamides, the carbon skeleton of the acid part being further substituted by singly-bound nitrogen atoms, not being part of nitro or nitroso groups
    • C07C311/37Sulfonamides, the carbon skeleton of the acid part being further substituted by singly-bound nitrogen atoms, not being part of nitro or nitroso groups having the sulfur atom of at least one of the sulfonamide groups bound to a carbon atom of a six-membered aromatic ring

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

Description

  

      Verfabren    zur Darstellung einer     Aminobenzolsulfonsäureamidverbindung.       Gemäss der im Patent     Nr.199315    be  schriebenen Erfindung sind gewisse     Amino-          acyl-    und     Oxyacylaminobenzolsulfonsäure-          amide    sowie deren     Substitutionsprodukte     durch ihre Wirkung gegen bakterielle Infek  tionskrankheiten ausgezeichnet.  



  Gegenstand des vorliegenden Patentes ist  ein Verfahren zur Herstellung einer     Amino-          benzolsulfonsäureamidverbindung,    dadurch ge  kennzeichnet, dass man auf ein     4-(4'-Halogen-          benzolsulfonamido)-        benzolsulfondimethylamid     bei erhöhter Temperatur und unter erhöhtem  Druck Ammoniak einwirken lässt.

   Zweck  mässig verwendet man das     4-(4'-Bromberizol-          sulfonamido)-benzolsulfondimethylamid    für die  Umsetzung und arbeitet in Gegenwart eines  Lösemittels wie Wasser,     Methyl-    oder     Äthyl-          alkohol.    Das Reaktionsprodukt kann aus der  Mischung in an sich üblicher Weise, z. B.  durch Eindampfen, Lösen des Rückstandes  in verdünnten Alkalien und Wiederausfällen  mit verdünnten Säuren, wie Essigsäure, ab-    geschieden werden. Nach dem Umkristalli  sieren, z. B. aus verdünntem Alkohol, bildet  das so erhältliche     4-(4'-Aminobenzolsulfon-          amido)-benzolsulfondimethylamid    farblose Kri  stalle vom Schmelzpunkt 1940.

   Es ist fast  unlöslich in kaltem Wasser, löst sich in  verdünnten Alkalien und soll therapeutische  Anwendung finden.  



       Beispiel:     20 g     4-(4'-Brombenzolsulfonamido)-benzol-          sulfondimethylamid    (dargestellt durch Kon  densation von     4-Brombenzolsulfochlorid    mit       4-Aminobenzolsulfondimethylamid    in     Pyridin,     farblose Kristalle aus Methanol vom Schmelz  punkt 152  ) werden im     Rührautoklaven    mit  120     cm3    konzentriertem     wässrigen    Ammoniak  10 Stunden auf 2001 bei etwa 60-70     At-          mosphärerl    Druck erhitzt.

   Die Reaktions  mischung wird unter vermindertem Druck  auf dem Wasserbade zur Trockne gebracht,  mit verdünnter Natronlauge gelöst, filtriert      und mit Essigsäure angesäuert. Das ausfal  lende     4-(4'-Amirtobenzolsulfonamido)-benzol-          sulfondimethylamid    bildet nach dem Um  kristallisieren aus verdünntem Alkohol farb  lose Kristalle vom Schmelzpunkt l94 . An  Stelle von     wässrigem    Ammoniak kann man  auch     methylalkoholisches    oder     äthylalkoholi-          sches    Ammoniak zur Umsetzung     verwenden.     An Stelle der     Bromverbinduug    können auch  andere Halogenverbindungen, z.

   B. die     Jod-          oder    die Chlorverbindung Anwendung finden.  Bei der Chlorverbindung wird die Reaktions  temperatur zweckmässig etwas erhöht.



      Procedure for preparing an aminobenzenesulfonic acid amide compound. According to the invention described in Patent No. 199315, certain aminoacyl- and oxyacylaminobenzenesulphonic acid amides and their substitution products are distinguished by their action against bacterial infectious diseases.



  The present patent relates to a process for the preparation of an aminobenzenesulfonic acid amide compound, characterized in that ammonia is allowed to act on a 4- (4'-halobenzenesulfonamido) -benzenesulfonedimethylamide at elevated temperature and under elevated pressure.

   It is useful to use 4- (4'-bromberizolesulfonamido) -benzenesulfondimethylamide for the reaction and work in the presence of a solvent such as water, methyl or ethyl alcohol. The reaction product can be prepared from the mixture in a conventional manner, for. B. by evaporation, dissolving the residue in dilute alkalis and reprecipitation with dilute acids such as acetic acid, deposited. After recrystallization, z. B. from dilute alcohol, the 4- (4'-aminobenzenesulfonamido) -benzenesulfonedimethylamide thus obtainable forms colorless crystals with a melting point of 1940.

   It is almost insoluble in cold water, dissolves in dilute alkalis and is said to have therapeutic applications.



       Example: 20 g of 4- (4'-bromobenzenesulfonamido) -benzenesulfondimethylamide (produced by condensation of 4-bromobenzenesulfochloride with 4-aminobenzenesulfonatedimethylamide in pyridine, colorless crystals from methanol with a melting point of 152) are stirred in an autoclave with 120 cm3 of concentrated aqueous ammonia Heated 10 hours to 2001 at about 60-70 atmospheric pressure.

   The reaction mixture is brought to dryness under reduced pressure on the water bath, dissolved with dilute sodium hydroxide solution, filtered and acidified with acetic acid. The precipitating 4- (4'-amirtobenzenesulfonamido) -benzenesulfondimethylamide forms colorless crystals with a melting point of 194 after recrystallization from dilute alcohol. Instead of aqueous ammonia, it is also possible to use methyl alcoholic or ethyl alcoholic ammonia for the reaction. Instead of the Bromverbinduug other halogen compounds such.

   B. the iodine or the chlorine compound can be used. In the case of the chlorine compound, the reaction temperature is appropriately increased somewhat.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung einer Atrtino- benzolsulfonsäureamidverbindung, dadurch ge kennzeichnet, dass man auf ein 4-(4'-Halogett- benzolsulfonamido)- benzolsttlfondimethylamid bei erhöhter Temperatur und unter erhöhtem Druck Ammoniak einwirken lässt. Das so erhältliche 4-(4'-Aminobenzolsul- fonamido)- bettzolsulfotiditnetltylamid bildet farblose Kristalle vom Schmelzpunkt 1940. UNTERANSPRMHE 1. PATENT CLAIM: A process for the production of an atrtino-benzenesulphonic acid amide compound, characterized in that ammonia is allowed to act on a 4- (4'-Halogett- benzenesulphonamido) - benzolsttlfondimethylamid at elevated temperature and pressure. The 4- (4'-aminobenzenesulphonamido) - bedzolsulfotiditnetylamide which can be obtained in this way forms colorless crystals with a melting point of 1940. SUBSTITUTE SHEET 1. Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass 4-(4'-Brombenzolsulfon- amido)-bettzolsulfottdimethylamid mit Am moniak umgesetzt wird. 2. Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man bei einer Tem peratur von etwa 200' und einem Druck von etwa 60-70 Atmosphären arbeitet. Process according to patent claim, characterized in that 4- (4'-bromobenzenesulfonamido) -bettzenesulfottdimethylamid is reacted with ammonia. 2. The method according to claim, characterized in that one works at a temperature of about 200 'and a pressure of about 60-70 atmospheres.
CH206632D 1936-02-06 1937-01-12 Process for preparing an aminobenzenesulfonic acid amide compound. CH206632A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE206632X 1936-02-06
CH204380T 1937-01-12

Publications (1)

Publication Number Publication Date
CH206632A true CH206632A (en) 1939-08-15

Family

ID=25724050

Family Applications (1)

Application Number Title Priority Date Filing Date
CH206632D CH206632A (en) 1936-02-06 1937-01-12 Process for preparing an aminobenzenesulfonic acid amide compound.

Country Status (1)

Country Link
CH (1) CH206632A (en)

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