DE461637C - Process for the preparation of salts of aromatic sulfonic halide amides - Google Patents

Process for the preparation of salts of aromatic sulfonic halide amides

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Publication number
DE461637C
DE461637C DEC36493D DEC0036493D DE461637C DE 461637 C DE461637 C DE 461637C DE C36493 D DEC36493 D DE C36493D DE C0036493 D DEC0036493 D DE C0036493D DE 461637 C DE461637 C DE 461637C
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DE
Germany
Prior art keywords
salts
preparation
aromatic sulfonic
amides
halogenamides
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
DEC36493D
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German (de)
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Chemische Fabrik Von Heyden AG
Original Assignee
Chemische Fabrik Von Heyden AG
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Application filed by Chemische Fabrik Von Heyden AG filed Critical Chemische Fabrik Von Heyden AG
Priority to DEC36493D priority Critical patent/DE461637C/en
Application granted granted Critical
Publication of DE461637C publication Critical patent/DE461637C/en
Expired legal-status Critical Current

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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 von Salzen aromatischer Sulfonhalogenamide. Die deutsche Patentschrift 39o 658 beschreibt ein Verfahren zur Herstellung von Alkalisalzen aromatischer Sulfonhalogenamide,welches darin besteht, daß man aromatische Sulfonamide, frei oder in Salzform.. mit . Calciumhypohalogeniten unter Zusatz von Alkalisalzen, wie Kochsalz, umsetzt. Das Patent 422076 schützt ein Verfahren zur Herstellung von Magnesiumsalzen dieser Verbindungen durch Umsetzung von Lösungen der Alkali- oder Erdalkalisalze der Halogensulfonamide mit löslichen Magnesiuinsalzen.Process for the preparation of salts of aromatic sulfonic halide amides. The German patent 39o 658 describes a method for the production of Alkali salts of aromatic sulfonic halogenamides, which consists in the fact that one aromatic Sulphonamides, free or in salt form .. with. Calcium hypohalites with the addition of Alkali salts, such as table salt, are converted. The patent 422076 protects a method for Production of magnesium salts of these compounds by converting solutions the alkali or alkaline earth salts of the halosulfonamides with soluble magnesium salts.

Bei weiterer Bearbeitung wurde nun gefunden, daß die Alkalisalze bzw. Magnesiumsalze der Halogensulfonamide in guter Ausbeute und vorzüglicher Reinheit erhalten werden können, wenn man die entsprechenden Sulfonamide bei Gegenwart von schwach basischen Stoffen, wie Kalk oder Kreide, Magnesia usw., mit freiem Halogen behandelt und die entstandenen Salze der Sulfonhalogenamide bei Gegenwart von Wasser mit löslichen Salzen, z. B. Kochsalz oder Magnesiumsalzen, zur Umsetzung bringt. Dieses Herstellungsverfahren ist insofern vorteilhaft, als es in guter Ausbeute zu den gewünschten Salzen der Sulfonhalob namide führt. Dieser Erfolg war um so weniger zu erwarten, als man nach den Angaben von C h a t t a w a y (Journalof the Chemicgl Society B. 87 [1905] Seite i 5o) die Herstellung von Sulfonhalogenamidsalzen durch Einleiten von Chlor in Lösungen von Sulfonamiden in überschüssigen starken kaustischen Alkali als keine zweckmäßige Darstellungsmethode kannte.In further processing it has now been found that the alkali salts or Magnesium salts of the halosulfonamides in good yield and excellent purity can be obtained by using the corresponding sulfonamides in the presence of weakly basic substances, such as lime or chalk, magnesia etc., with free halogen treated and the resulting salts of sulfonic halogenamides in the presence of water with soluble salts, e.g. B. table salt or magnesium salts, brings to implementation. This manufacturing method is advantageous in that it is in good yield leads to the desired salts of the sulfone halide namide. This success was so less to be expected than according to the information from C h a t t a w a y (Journal of the Chemicgl Society B. 87 [1905] page i 5o) the preparation of sulfone halide salts by introducing chlorine into solutions of sulfonamides in excess strong caustic alkali was not known to be an expedient method of presentation.

Beispiel. i7o Gewichtsteile p-Toluolsulfonamid werden mit 3 ooo Gewichtsteilen Wasser verrührt und 8o Teile gelöschter Kalk eingetragen. Hierauf werden bei gewöhnlicher Temperatur i i o Gewichtsteile Chlor eingeleitet, wobei das leicht lösliche Calciumsalz des Toluolsulfonchloramids gebildet wird. Die Lösung desselben wird von dem unlöslichen Rückstand, der den im frlberschuß angewandten Kalk enthält, abfiltriert und durch Eintragen von i ooo Gewichtsteilen Kochsalz das Natronsalz des Toluolsulfonchloramids abgeschieden, das in üblicher Weise von der Lauge getrennt wird.Example. 170 parts by weight of p-toluenesulfonamide are mixed with 3,000 parts by weight Stirred water and entered 80 parts of slaked lime. Then be at ordinary Temperature i i o parts by weight of chlorine initiated, with the easily soluble calcium salt of toluenesulfonyl chloride is formed. The solution of the same becomes from the insoluble The residue, which contains the lime used in excess, is filtered off and passed through Enter 10,000 parts by weight of table salt, the sodium salt of toluenesulfonyl chloride deposited, which is separated from the lye in the usual way.

Wendet man bei vorstehend beschriebenem Verfahren statt der i ro Teile Chlor :24o Teile Brom an und salzt mit Bromnatrium aus, so erhält man das N@atriumsalz des Toluolsulfonbromamids; setzt man die erhaltenen Lösungen der Kalksalze der Sulfonhalogenamicle mit löslichen Magnesiumsalzen um, so werden die entsprechenden Magnesiumsalze erhalten.If you use the procedure described above instead of the i ro parts Chlorine: 240 parts of bromine and salted out with sodium bromide, the sodium salt is obtained of toluenesulfonobromamide; the solutions obtained of the calcium salts of the sulfonhalogenamicles are added with soluble magnesium salts, the corresponding magnesium salts are obtained.

Das vorstehend beschriebene neue Verfahren ist ein großer technischer Fortschritt, es stellt in einer Operation aus Amid, Kalk o. dgl. und freiem Chlor ein Salz des Toluolsulfonchloramids her, bedarf also nicht mehr des bisher notwendigen Chlorkalks, der in besonderer Apparatur unter Aufwendung hoher Arbeitslöhne gesondert hergestellt werden mußte.The new method described above is a great technical one Progress, it is made from amide, lime or the like in one operation. and free chlorine produce a salt of toluenesulfonyl chloride, so no longer is required of the previously necessary chlorine lime, which was used in special equipment high wages had to be produced separately.

Claims (1)

PATr.NTANSPRUCH Weitere Ausbildung des Verfahrens der Patente 39o 658 und q.2z 076 zur Herstellung von Salzen aromatischer Sulfonhalogenamide, dadurch gekennzeichnet, daß man aromatische Sulfonamide unter Ausschluß starker kaustischer Alkalien bei Gegenwart schwach basischer Sto±fe, wie Kalk, Kreide, statt mit Calciumhypohalogeniten hier mit freiem Halogen behandelt und die entstandenen Salze der Sulfonhalogenamide mit löslichen Salzen zur Umsetzung bzw. Ausscheidung bringt.PATRENT CLAIM Further development of the process of patents 39o 658 and q.2z 076 for the production of salts of aromatic sulfonic halogenamides, characterized in that aromatic sulfonamides are used with the exclusion of strong caustic alkalis in the presence of weakly basic substances, such as lime, chalk, instead of with Calcium hypohalites are treated here with free halogen and the resulting salts of the sulfonic halogenamides are reacted or excreted with soluble salts.
DEC36493D 1925-04-04 1925-04-04 Process for the preparation of salts of aromatic sulfonic halide amides Expired DE461637C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEC36493D DE461637C (en) 1925-04-04 1925-04-04 Process for the preparation of salts of aromatic sulfonic halide amides

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEC36493D DE461637C (en) 1925-04-04 1925-04-04 Process for the preparation of salts of aromatic sulfonic halide amides

Publications (1)

Publication Number Publication Date
DE461637C true DE461637C (en) 1928-06-26

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
DEC36493D Expired DE461637C (en) 1925-04-04 1925-04-04 Process for the preparation of salts of aromatic sulfonic halide amides

Country Status (1)

Country Link
DE (1) DE461637C (en)

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