DE131741C - - Google Patents

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Publication number
DE131741C
DE131741C DENDAT131741D DE131741DA DE131741C DE 131741 C DE131741 C DE 131741C DE NDAT131741 D DENDAT131741 D DE NDAT131741D DE 131741D A DE131741D A DE 131741DA DE 131741 C DE131741 C DE 131741C
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DE
Germany
Prior art keywords
pyrazolone
dimethyl
phenyl
saccharin
compound
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DENDAT131741D
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German (de)
Publication of DE131741C publication Critical patent/DE131741C/de
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Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D231/00Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings
    • C07D231/02Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings
    • C07D231/10Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
    • C07D231/14Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having two or three 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, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D231/18One oxygen or sulfur atom
    • C07D231/20One oxygen atom attached in position 3 or 5
    • C07D231/22One oxygen atom attached in position 3 or 5 with aryl radicals attached to ring nitrogen atoms
    • C07D231/261-Phenyl-3-methyl-5- pyrazolones, unsubstituted or substituted on the phenyl ring

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

In der Patentschrift 35933 haben Fahlberg und List ein Verfahren beschrieben, nach welchem Salze aus Saccharin und den vier nachfolgenden Alkaloiden erhalten werden können, und zwar dem Chinin, Cinchonin, Strychnin und Morphin.In the patent specification 35933 Fahlberg and List have described a method according to which Salts can be obtained from saccharin and the four subsequent alkaloids, namely the quinine, cinchonine, strychnine and morphine.

Das Herstellungsverfahren besteht einfach darin, dafs man das Saccharin- mit dem betreffenden Alkaloid neutralisirt, so dafs es sich hier um eine zur Gewinnung von Salzen ganz allgemein übliche Methode handelt.The manufacturing process consists simply of mixing the saccharin with the substance in question Alkaloid neutralized, so that it is a question here for the production of salts common method.

Nun hat aber das Verfahren von Fahlberg und List keine praktische Bedeutung gewonnen, entweder weil die Salze der vier in dem betreffenden Patente angegebenen Alkaloide keinen Werth besitzen, oder weil die erhaltenen Salze ungefähr dieselben Eigenschaften aufweisen wie die Alkaloide, von denen sie abstammen, oder endlich weil die Herstellung von reinen Salzen mit Schwierigkeiten verbunden war.Now, however, the Fahlberg and List method has gained no practical significance, either because the salts of the four alkaloids specified in the relevant patent are none Have value, or because the salts obtained have approximately the same properties as the alkaloids from which they are derived, or finally because the production of pure salts was fraught with difficulty.

Demgegenüber haben die Erfinder versucht, Verbindungen des Saccharins nicht mit Alkaloiden, sondern mit anderen organischen Basen als Alkaloide durch directe Einwirkung des Saccharins auf diese Basen zu gewinnen.In contrast, the inventors tried to avoid compounds of saccharine with alkaloids, but with organic bases other than alkaloids through the direct action of the To win saccharin on these bases.

Unter den Verbindungen,- welche die Versuche ergeben haben, kennzeichnet sich die Verbindung aus Saccharin und i-Phenyl-2, 3-dimethyl-5-pyrazolon durch sehr interessante und werthvolle Eigenschaften.Among the compounds - which the tests have shown, the Compound of saccharin and i-phenyl-2, 3-dimethyl-5-pyrazolone by very interesting and valuable properties.

Dieses Salz wird in folgender Weise hergestellt: This salt is made in the following way:

183 Theile Saccharin und 188 Theile i-Phenyl-2, 3-dimethyl-5-pyrazolon werden in einer so kleinen183 parts saccharin and 188 parts i-phenyl-2, 3-dimethyl-5-pyrazolone are made in such a small way

Mengelot

kochenden Wassers aufgelöst wie nur möglich. Während der Abkühlung krystallisirt das Product aus, und zwar nähert sich die Ausbeute der theoretischen.dissolved in boiling water as much as possible. While cooling down The product crystallizes out, and the yield approaches the theoretical one.

Die auf diese Weise erhaltene Verbindung von i-Phenyl-2, 3-dimethyl-5-pyrazolon mit Saccharin besteht aus nicht sehr gut ausgebildeten prismatischen Krystallen, welche bei 145 bis 1500 schmelzen.The compound I-phenyl-2 thus obtained, 3-dimethyl-5-pyrazolone with saccharin consists of non very well trained prismatic crystals, melting at 145 to 150 0th

100 Theile Wasser von 1 8° lösen 0,50 Theile dieses Salzes auf. Bei 370 werden 0,74 und bei ioo° 25 Theile aufgelöst.100 parts of water at 18 ° dissolve 0.50 part of this salt. At 37 0 0.74 and dissolved at 25 ° ioo parts.

Im Vergleich zu dem i-Phenyl-2, 3-dimethyl-5-pyrazolon weist die Saccharinverbindung besondere Eigenschaften auf.Compared to the i-phenyl-2,3-dimethyl-5-pyrazolone the saccharin compound has special properties.

Das i-Phenyl-2, 3-dimethyl-5-pyrazolon geht nämlich mit Säuren nur sehr schwer Verbindungen ein, und es haben die Salze, welche trotz der grofsen Schwierigkeiten erhalten werden konnten, keine praktische Verwendung gefunden, sei es, weil diese Salze sehr toxisch sind, sei es, weil dieselben einen unangenehmen Geschmack besitzen.The i-phenyl-2,3-dimethyl-5-pyrazolone is very difficult to combine with acids one, and they have the salts which are obtained in spite of the great difficulties could not have found any practical use, either because these salts are very toxic are, be it because they have an unpleasant taste.

Demgegenüber gelingt die Darstellung der neuen Verbindung aus i-Phenyl-2, 3-dimethyl-5-pyrazolon und Saccharin sehr leicht, und die Reaction geht glatt vor sich.In contrast, the preparation of the new compound from i-phenyl-2,3-dimethyl-5-pyrazolone succeeds and saccharin very easily, and the reaction proceeds smoothly.

Des Weiteren weist das neue Salz mehrere neue technische Fortschritte auf.Furthermore, the new salt shows several new technical advances.

Die Verbindung von i-Phenyl-2, 3-dimethyl-5-pyrazolon mit Saccharin besitzt viel vortrefflichere therapeutische Eigenschaften als die bisher zu demselben Zwecke verwendeten Körper, wie z. B. das i-Phenyl-2, 3-dimethyl-5-pyrazolon. The compound of i-phenyl-2, 3-dimethyl-5-pyrazolone with saccharin has much more excellent therapeutic properties than that previously used for the same purpose body such. B. i-phenyl-2,3-dimethyl-5-pyrazolone.

Die Saccharinverbindung ist nämlich bei gleichen Gewichtsmengen weniger toxisch als das i-Phenyl-2, 3-dimethyl-5-pyrazolon selbst, und beim Einnehmen des neuen Productes durch Patienten tritt niemals Erbrechen ein, wie dies bei der Verwendung von i-Phenyl-2, 3-dimethyl - 5 - pyrazolon häufig vorkommt.Namely, the saccharin compound is less toxic than in equal amounts by weight the i-phenyl-2,3-dimethyl-5-pyrazolone itself, and vomiting never occurs when the patient ingests the new product, as this often occurs when i-phenyl-2, 3-dimethyl - 5 - pyrazolone is used.

Die an Thieren sowohl wie an Menschen vorgenommenen Versuche haben ergeben, dafs i-Phenyl-2, 3-dimethyl-5-pyrazolon und dessen Saccharinverbindung bei gleichen Gewichtsmengen ähnliche Wirkungen hervorrufen, so dafs also die Wirkung des neuen Productes nicht etwa im Verhältnisse zu dem darin enthaltenen i-Phenyl-2, 3-dimethyl-5 - pyrazolon steht, sondern viel höher ist. Es ist aufserdem zu berücksichtigen, dafs die Saccharinverbindung bei gleichen Gewichtsmengen weniger toxisch ist als das i-Phenyl-2, 3 -dimethyl-5-pyrazolon. The experiments made on animals as well as on humans have shown that i-Phenyl-2, 3-dimethyl-5-pyrazolone and its saccharin compound produce similar effects at equal amounts by weight, see above so that the effect of the new product is not in relation to that contained in it i-phenyl-2, 3-dimethyl-5 - pyrazolone stands, but is much higher. It is also to take into account that the saccharin compound is less for the same weight is more toxic than i-phenyl-2,3-dimethyl-5-pyrazolone.

Ferner ist die physiologische Wirkung der Saccharinverbindung andauernder als diejenige des i-Phenyl-2, 3-dimethyl-5-pyrazolons und aufserdem constanter, was durch zahlreiche Versuche nachgewiesen worden ist.Furthermore, the physiological effect of the saccharin compound is more lasting than that of i-phenyl-2, 3-dimethyl-5-pyrazolone and moreover constant, which has been proven by numerous experiments.

Ferner übt die Verbindung von i-Phenyl-2, 3-dimethyl-5"pyrazolon mit Saccharin, welche ein Salz ist, nicht dieselbe verzögernde Wirkung auf die Verdauung aus wie freies i-Phenyl-2, 3-dimethyl-5-pyrazolon. Des Weiteren läfst der neue Körper den diastatischen Vergährungserscheinungen ihren freien Lauf, und wahrscheinlich aus diesem Grunde ruft die Saccharinverbindung nicht dieselben Brecherscheinungen hervor wie 1-Phenyl-2, 3-dimethyl-5-pyrazolon. Furthermore, the compound of i-phenyl-2, 3-dimethyl-5 "pyrazolone with saccharin, which is a salt, does not have the same retarding effect on digestion like free i-phenyl-2, 3-dimethyl-5-pyrazolone. Furthermore you run the new body the diastatic deterioration its free run, and probably for this reason the saccharin compound does not cause the same vomiting phenomena such as 1-phenyl-2, 3-dimethyl-5-pyrazolone.

Claims (1)

Patent-Anspruch :Patent claim: Verfahren zur Darstellung einer Verbindung von i-Phenyl-2, 3-dimethyl-5-pyrazolon und Saccharin, dadurch gekennzeichnet, dafs man äquivalente Mengen von i-Phenyl-2, 3-dimethyl-5-pyrazolon und Saccharin in heifsem Wasser auflöst und die Lösung durch Abkühlen zur Krystallisation bringt.Process for the preparation of a compound of i-phenyl-2, 3-dimethyl-5-pyrazolone and Saccharin, characterized in that equivalent amounts of i-phenyl-2,3-dimethyl-5-pyrazolone are used and dissolve saccharin in hot water and cool the solution brings to crystallization.
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