DE904895C - Process for the preparation of salts of sulfonamides - Google Patents
Process for the preparation of salts of sulfonamidesInfo
- Publication number
- DE904895C DE904895C DESCH4445A DESC004445A DE904895C DE 904895 C DE904895 C DE 904895C DE SCH4445 A DESCH4445 A DE SCH4445A DE SC004445 A DESC004445 A DE SC004445A DE 904895 C DE904895 C DE 904895C
- Authority
- DE
- Germany
- Prior art keywords
- salts
- water
- sulfonamides
- preparation
- group
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D285/00—Heterocyclic compounds containing rings having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by groups C07D275/00 - C07D283/00
- C07D285/01—Five-membered rings
- C07D285/02—Thiadiazoles; Hydrogenated thiadiazoles
- C07D285/04—Thiadiazoles; Hydrogenated thiadiazoles not condensed with other rings
- C07D285/12—1,3,4-Thiadiazoles; Hydrogenated 1,3,4-thiadiazoles
-
- 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
- C07C311/30—Sulfonamides, the carbon skeleton of the acid part being further substituted by singly-bound nitrogen atoms, not being part of nitro or nitroso groups
- C07C311/37—Sulfonamides, 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
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D239/00—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings
- C07D239/02—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings
- C07D239/24—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members
- C07D239/28—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, directly attached to ring carbon atoms
- C07D239/69—Benzenesulfonamido-pyrimidines
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
Description
Verfahren zur Herstellung von Salzen von Sulfonamiden Gegenstand der Patente 767 015 und 840 241 sowie des französischen Patents 873 472 ist die Herstellung von Abkömmlingen von Sulfonamiden der allgemeinen Formel R - S 02 - N H - X, in der R einen mindestens eine kerngebundene Aminogruppe in p-Stellung zur Sulfonamidgruppe enthaltenden aromatischen, heterocyclischen oder aromatisch-heterocyclischen Rest und X den Rest einer Carbonsäure oder einen heterocyclischen Rest mit 2 Stickstoffatomen darstellt. In den Patentschriften ist bereits erwähnt, daß der Ersatz des noch vorhandenen Wasseistoffatoms der Sulfonamidgruppe durch Metall zu Salzen dieser Abkömmlinge führt, welche, wie die Ausgangsstoffe, wertvolle Therapeutika sind.Process for the preparation of salts of sulfonamides The subject of patents 767 015 and 840 241 as well as French patent 873 472 is the preparation of derivatives of sulfonamides of the general formula R - S 02 - N H - X, in which R has at least one nucleus-bound amino group in p-position to the aromatic, heterocyclic or aromatic-heterocyclic radical containing sulfonamide groups, and X represents the radical of a carboxylic acid or a heterocyclic radical having 2 nitrogen atoms. It is already mentioned in the patents that the replacement of the hydrogen atom of the sulfonamide group still present with metal leads to salts of these derivatives, which, like the starting materials, are valuable therapeutic agents.
Es wurde nun gefunden, daß besonders wertvolle Salze erhalten werden, wenn zur Umsetzung mit den Sulfonamidabkömmlingen Metallverbindungen der Gruppe lIb des Periodischen Systems der Elemente, vor allem des Zinks oder Cadmiums, verwendet werden, da die Einführung dieser Metalle, deren Verbindungen auf Grund ihrer adstringierenden Wirkung bereits in der Ophthalmologie, Dermatologie und Gynäkologie Verwendung finden, in die Sulfonamide auf die diesen eigenen Wirkungen einen erheblich ergänzenden bzw. verstärkenden Einfluß ausübt.It has now been found that particularly valuable salts are obtained if for reaction with the sulfonamide derivatives, metal compounds of the group Ib of the Periodic Table of the Elements, especially zinc and cadmium, are used because the introduction of these metals, their compounds due to their astringent Effect is already used in ophthalmology, dermatology and gynecology, in the sulphonamides on which these own effects are considerably complementary or exerts a reinforcing influence.
Die Herstellung dieser Salze erfolgt nach an sich bekannten Methoden, insbesondere eignet sich die Methode der doppelten Umsetzung, nach der z. B. die Erdalkalisalze mit löslichen Sulfaten der Schwermetallsalze umgesetzt werden, wobei das Erdalkalisulfat ausfällt, wie auch die Umsetzung der Alkalisalze mit löslichen Schwermetallsalzen; aber auch direkte Umsetzungen der Sulfonamide mit Verbindungen der Metalle der Gruppe III sind möglich, ebenso wie die Einführung der Schwermetalle über ihre Alkoholate, metallorganischen Verbindungen u. dgl. erfolgen kann. Durch folgende Beispiele sei die Erfindung näher erläutert.The production of these salts takes place according to methods known per se, In particular, the method of double implementation is suitable, according to the z. B. the Alkaline earth salts are reacted with soluble sulfates of the heavy metal salts, with the alkaline earth metal sulfate precipitates, as does the reaction of the alkali metal salts with soluble ones Heavy metal salts; but also direct reactions of sulfonamides with compounds of the metals of group III are possible, as well as the introduction of heavy metals via their alcoholates, organometallic compounds and the like can. The invention is illustrated in more detail by the following examples.
Beispiel i 3:2 g Bariumhydroxyd Ba(OH)2 - 8 H,0 werden in 2oo ccm ausgekochtem Wasser warm gelöst und in die erkaltete Lösung unter Kühlung 43 g p-Aminobenzolsulfonacetamid, in 150 ccm Methanol gelöst, gegeben. Die Lösung wird, ohne sie von den ausgeschiedenen Kristallen abzutrennen, bei 40' nicht übersteigender Temperatur im Vakuum unter 15 mm Druck eingedampft. 25 g des so erhaltenen Bariumsalzes werden bei etwa 40' in 2oo ccm Wasser gelöst und bei Zimmertemperatur mit einer Lösung von 12,7 g Zinksulfat (7 H,0) in 50 ccm Wasser vereinigt. Vom ausgeschiedenen Bariumsulfat abgesaugt, wird das Filtrat bei 40' unter 18 mm Druck bis zur Trockne eingedampft. Der Rückstand, das Zinksalz des Sulfonamids, ist in Wasser mäßig, in Alkohol wenig löslich, F. unter Zersetzung bei etwa 163'. Durch Einwirkung von Säuren oder Alkali sowie bei Er-Ixitzen in Wasser über 6o' wird es zersetzt.Example 3 i: 2 g of barium hydroxide Ba (OH) 2 - 8 H, 0 are dissolved warm in 2oo cc boiled water and dissolved in the cooled solution under cooling, 43 g of p-Aminobenzolsulfonacetamid, in 150 cc of methanol. Without separating it from the precipitated crystals, the solution is evaporated at a temperature not exceeding 40 'in a vacuum under 15 mm pressure. 25 g of the barium salt obtained in this way are dissolved in 2oo cc of water at about 40 'and combined at room temperature with a solution of 12.7 g of zinc sulfate (7 H, 0) in 50 cc of water. The barium sulfate which has separated out is suctioned off, and the filtrate is evaporated to dryness at 40 'under 18 mm pressure. The residue, the zinc salt of sulfonamide, is moderately soluble in water and sparingly soluble in alcohol, F. with decomposition at about 163 °. It is decomposed by the action of acids or alkali, as well as when it is heated in water for more than 6o '.
Beispiel 2, 40 g des nach Beispiel i erhaltenen Bariumsalzes in 3oo ccm Wasser werden mit einer Lösung von 17,-7 g Cadmiumsulfat (Cd SO, - 8/3 H20) in 8o ccm Wasser versetzt. Die Aufarbeitung erfolgt wie im Beispiel i. Man erhält das in Wasser lösliche, in Alkohol wenig lösliche Cadmiumsalz des p-Aminobenzolsulfonacetamids vom F. unter Zersetzung bei etwa --io'.Example 2, 40 g of the barium salt obtained according to Example i in 300 cc of water are mixed with a solution of 17.7 g of cadmium sulfate (Cd SO, - 8/3 H 2 O) in 80 cc of water. The work-up is carried out as in Example i. The cadmium salt of p-aminobenzene sulfonacetamide from F., which is soluble in water and slightly soluble in alcohol, is obtained with decomposition at about -io '.
Beispiel 3 Zu einer Lösung von 28,49 5-(p-Aminobenzolsulfonamido)-2-äthyl-i,3,4-thiodiazol und 49 Natriumhydroxyd in 5oo ccm Wasser wird schnell eine Lösung von 14,3 9 Zinksulfat (7 H.0) in 75 ccm Wasser gegeben. Das Zinksalz fällt sofort aus und wird abgesaugt. Es ist sehr schwer löslich in Wasser oder Alkohol, F. unter Zersetzung bei etwa 18o'. Beispiel 4 Zu 28,49 5-(p-Anünobenzolsulfonamido)-2-äthyl-1, 3, 4-thiodiazol und 4 g Natriumhydroxyd, in 5oo ccm Wasser gelöst, werden 12,8 g Cadmiumsulfat (Cd S 04 - 8/3 H,0) in 50 ccm. Wasser gegeben. Das ausgefallene Cadmiumsalz ist sehr schwer löslich in Wasser oder Alkohol. F. unter Zersetzung bei etwa 21?,'. EXAMPLE 3 A solution of 28.49 of 5- (p-aminobenzenesulfonamido) -2-ethyl-i, 3,4-thiodiazole and 49 of sodium hydroxide in 500 cc of water is rapidly added to a solution of 14.3 9 of zinc sulfate (7 H.0 ) given in 75 cc of water. The zinc salt precipitates immediately and is suctioned off. It is very sparingly soluble in water or alcohol, F. with decomposition at about 18o '. Dissolved EXAMPLE 4 To 28.49 5- (p-Anünobenzolsulfonamido) -2-ethyl-1, 3, 4-thiadiazole and 4 g of sodium hydroxide in 5oo cc of water to be 12.8 g of cadmium sulfate (Cd S 04 - 8/3 H, 0) in 50 cc. Given water. The precipitated cadmium salt is very sparingly soluble in water or alcohol. F. with decomposition at about 21 ?, '.
Beispiel 5 Zu 9,5,2 9 2-(p-Aminobenzolsulfonamido)-4-methylpyrinlidin und 4 g Natriumhydroxyd, in Soo g Wasser gelöst, werden 14,3 9 Zinksulfat (7 H,0) in 75 ccm Wasser gegeben. Das ausgefallene Zinksalz ist praktisch unlöslich in Wasser oder Alkohol. F. unter Zersetzung bei etwa 275'. Example 5 dissolved to 9,5,2 9 2- (p-aminobenzenesulfonamido) -4-methylpyrinlidin and 4 g sodium hydroxide, in Soo g water, 14.3 9 Zinc sulfate (7 H, 0) in 75 cc of water. The precipitated zinc salt is practically insoluble in water or alcohol. F. with decomposition at about 275 '.
Beispiel 6 Zu 25,2g 2-(p-Aminobenzolsulfonamido-4-methylpyrimidin und 4 g Natriumhydroxyd, in 500 ccm Wasser gelöst, werden 12,8 g Cadmiumsulfat in 5o ccm Wasser gegeben. Das ausgefallene Cadmiumsalz; ist praktisch unlöslich in Wasser oder Alkohol. F. unter Zersetzung bei etwa 3o8'. EXAMPLE 6 12.8 g of cadmium sulfate in 50 cc of water are added to 25.2 g of 2- (p-aminobenzenesulfonamido-4-methylpyrimidine and 4 g of sodium hydroxide, dissolved in 500 cc of water. The precipitated cadmium salt is practically insoluble in water or alcohol F. with decomposition at about 3o8 '.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DESCH4445A DE904895C (en) | 1950-09-28 | 1950-09-28 | Process for the preparation of salts of sulfonamides |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DESCH4445A DE904895C (en) | 1950-09-28 | 1950-09-28 | Process for the preparation of salts of sulfonamides |
Publications (1)
Publication Number | Publication Date |
---|---|
DE904895C true DE904895C (en) | 1954-02-22 |
Family
ID=7424123
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DESCH4445A Expired DE904895C (en) | 1950-09-28 | 1950-09-28 | Process for the preparation of salts of sulfonamides |
Country Status (1)
Country | Link |
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DE (1) | DE904895C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2507474A1 (en) * | 1981-06-16 | 1982-12-17 | Choay Sa | Benzene, thiophene and pyrimidine sulphonamido alkanoic acid derivs. - are normolipaemic cpds. with good therapeutic index, have low toxicity |
-
1950
- 1950-09-28 DE DESCH4445A patent/DE904895C/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2507474A1 (en) * | 1981-06-16 | 1982-12-17 | Choay Sa | Benzene, thiophene and pyrimidine sulphonamido alkanoic acid derivs. - are normolipaemic cpds. with good therapeutic index, have low toxicity |
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