CH206631A - Process for preparing an aminobenzenesulfonic acid amide compound. - Google Patents

Process for preparing an aminobenzenesulfonic acid amide compound.

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Publication number
CH206631A
CH206631A CH206631DA CH206631A CH 206631 A CH206631 A CH 206631A CH 206631D A CH206631D A CH 206631DA CH 206631 A CH206631 A CH 206631A
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 CH206631A publication Critical patent/CH206631A/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

  

  Verfahren zur Darstellung einer     Aminobenzolsulfonsäureamidverbindnng.       Gemäss der im Patent     Nr.19931ä    be  schriebenen Erfindung sind gewisse     Amino-          acyl-    und     Ogyacylaminobenzolsulfonsäure-          amide    sowie deren     Substitutionsprodukte     durch ihre Wirkung gegen bakterielle Infek  tionskrankheiten ausgezeichnet.  



  Gegenstand des vorliegenden Patentes ist  ein Verfahren zur Herstellung einer     Amino-          benzolsulfonsäureamidverbindung,    welches da  durch gekennzeichnet ist, dass man auf ein       4-(4'.Halogeiibenzolsulfonamido)-benzolsulfon-          monomethylamid    bei erhöhter Temperatur  und erhöhtem Druck Ammoniak einwirken  lässt. Die Umsetzung erfolgt zweckmässig in  einem Lösemittel wie Wasser,     Methyl-    oder  Äthylalkohol. Vorteilhaft verwendet man das       4-(4'-Brombenzolsulfonamido)    -     benzolsulfon-          monomethylamid.    Das Reaktionsprodukt lässt  sich aus der Reaktionsmischung in an sich  üblicher Weise, z.

   B, durch Eindampfen der  Mischung, Lösen des Rückstandes in ver  dünntem Alkali und Ausfällen des Reak-         tionsproduktes,    z. B. mit verdünnter Essig  säure, abscheiden. Nach dem     Umkristallisieren,     z. B. aus Alkohol, bildet das so erhältliche  4 -     (4'-Aminobenzolsulfonamido)        -benzolsulfon-          monomethylamid    farblose Kristalle vom  Schmelzpunkt 141 . Es ist in kaltem Wasser  schwer löslich, löslich in verdünnten Alkalien  und soll therapeutische Anwendung finden.

      <I>Beispiel:</I>  20 g     4-(4'-Brombenzolsulfonamido)-benzol-          sulfonmonomethylamid    (dargestellt durch  Kondensation von     4-Brombenzolsulfochlorid     mit     4-Aminobenzolsulfonmonomethylamid    in       Pyridin,    aus verdünntem Alkohol farblose  Kristalle vom Schmelzpunkt<B>1880)</B> werden  im     Rührautoklaven    mit 120 cm' konzen  triertem     wässrigen    Ammoniak 10 Stunden auf  2000 bei etwa 60-70 Atmosphären Druck  erhitzt. Die Reaktionsmischung wird unter  vermindertem Druck auf dem Wasserbade  zur Trockne gebracht, mit verdünnter Natron-      lauge gelöst, filtriert und mit Essigsäure an  gesäuert.

   Das ausgefallene     4-(4'-Arnirroberrzol-          sulfonamido)-benzolsulfonmonomethylamid    bil.       det nach    dem     Umkristallisieren    aus verdünn  tem Alkohol farblose Kristalle vom Schmelz  punkt 141  .     AnStellevonwässrigemAmmoniak     kann man auch     methylalkoholisches    oder       äthylalkoholisches    Ammoniak<B>zur</B> Umsetzung  verwenden. An Stelle der Bromverbindung  können auch andere Halogenverbindungen,  z. B. die Jod- oder die Chlorverbindung,  Anwendung finden. Bei der Chlorverbindung  wird die Reaktionstemperatur zweckmässig  etwas erhöht.



  Process for the preparation of an aminobenzenesulfonic acid amide compound. According to the invention described in patent no.19931ä, certain aminoacyl- and ogyacylaminobenzenesulfonic acid amides and their substitution products are distinguished by their action against bacterial infectious diseases.



  The subject matter of the present patent is a process for the preparation of an aminobenzenesulfonic acid amide compound, which is characterized in that ammonia is allowed to act on a 4- (4'.halogeiibenzenesulfonamido) -benzenesulfonamethylamide at elevated temperature and pressure. The reaction is conveniently carried out in a solvent such as water, methyl or ethyl alcohol. It is advantageous to use 4- (4'-bromobenzenesulfonamido) -benzenesulfonmonomethylamide. The reaction product can be extracted from the reaction mixture in a conventional manner, e.g.

   B, by evaporating the mixture, dissolving the residue in ver dilute alkali and precipitating the reaction product, eg. B. with dilute acetic acid, deposit. After recrystallization, e.g. B. from alcohol, the so obtainable 4 - (4'-aminobenzenesulfonamido) -benzenesulfonmonomethylamide forms colorless crystals with a melting point of 141. It is sparingly soluble in cold water, soluble in dilute alkalis and is said to be of therapeutic use.

      <I> Example: </I> 20 g of 4- (4'-bromobenzenesulfonamido) -benzenesulfonmonomethylamide (produced by the condensation of 4-bromobenzenesulfonyl chloride with 4-aminobenzenesulfonomethylamide in pyridine, from dilute alcohol colorless crystals with a melting point of <B> 1880) </B> are heated in a stirred autoclave with 120 cm 'concentrated aqueous ammonia for 10 hours to 2000 at about 60-70 atmospheric pressure. The reaction mixture is brought to dryness on a water bath under reduced pressure, dissolved with dilute sodium hydroxide solution, filtered and acidified with acetic acid.

   The precipitated 4- (4'-Arnirroberrzol- sulfonamido) -benzolsulfonmonomethylamid bil. after recrystallization from dilute alcohol, colorless crystals with a melting point of 141. Instead of aqueous ammonia, methyl alcoholic or ethyl alcoholic ammonia can also be used for the reaction. Instead of the bromine compound, other halogen compounds, e.g. B. the iodine or the chlorine compound find application. With the chlorine compound, the reaction temperature is expediently increased somewhat.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung einer Amino- benzolsulfonsäureamidverbindung, dadurch ge kennzeichnet, dass man auf ein 4-(4'-Halogen- benzolsulfonamido) - benzolsulfonmonomethy 1- amid bei erhöhter Temperatur und erhöhtere Druck Ammoniak einwirken lässt. Das so erhältliche #4-(4'-Aminobenzolsul- forramido)-benzolsulfonnrorromethylamid bildet farblose Kristalle vom Schmelzpunkt 141 . <B>UNTERANSPRÜCHE:</B> 1. PATENT CLAIM: A process for the production of an aminobenzenesulphonic acid amide compound, characterized in that ammonia is allowed to act on a 4- (4'-halobenzenesulphonamido) -benzenesulphonmonomethyl amide at elevated temperature and pressure. The # 4- (4'-aminobenzenesulforramido) -benzenesulfonrorromethylamide obtainable in this way forms colorless crystals with a melting point of 141. <B> SUBClaims: </B> 1. Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass 4-(4'-Brombenzolsulforr- amido) - benzolsulforrrriononrethylamid mit Ammoniak umgesetzt wird. 2. Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass bei einer Temperatur von etwa 200 und einem Druck von etwa 60-70 Atmosphären gearbeitet, wird. Process according to claim, characterized in that 4- (4'-bromobenzenesulforramido) -benzenesulforrrriononrethylamide is reacted with ammonia. 2. The method according to claim, characterized in that it is carried out at a temperature of about 200 and a pressure of about 60-70 atmospheres.
CH206631D 1936-02-06 1937-01-12 Process for preparing an aminobenzenesulfonic acid amide compound. CH206631A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE206631X 1936-02-06
CH204380T 1937-01-12

Publications (1)

Publication Number Publication Date
CH206631A true CH206631A (en) 1939-08-15

Family

ID=25724049

Family Applications (1)

Application Number Title Priority Date Filing Date
CH206631D CH206631A (en) 1936-02-06 1937-01-12 Process for preparing an aminobenzenesulfonic acid amide compound.

Country Status (1)

Country Link
CH (1) CH206631A (en)

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