CH384139A - Process for the preparation of the α-methylbenzylhydrazine salt of an acidic resin - Google Patents
Process for the preparation of the α-methylbenzylhydrazine salt of an acidic resinInfo
- Publication number
- CH384139A CH384139A CH8225159A CH8225159A CH384139A CH 384139 A CH384139 A CH 384139A CH 8225159 A CH8225159 A CH 8225159A CH 8225159 A CH8225159 A CH 8225159A CH 384139 A CH384139 A CH 384139A
- Authority
- CH
- Switzerland
- Prior art keywords
- methylbenzylhydrazine
- salt
- parts
- sulfonated polystyrene
- acidic resin
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F8/00—Chemical modification by after-treatment
- C08F8/30—Introducing nitrogen atoms or nitrogen-containing groups
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/74—Synthetic polymeric materials
- A61K31/795—Polymers containing sulfur
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F8/00—Chemical modification by after-treatment
- C08F8/44—Preparation of metal salts or ammonium salts
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Polymers & Plastics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Epidemiology (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- General Health & Medical Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pharmacology & Pharmacy (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Description
Verfahren zur Herstellung des ci-Methyibenzylhydrazinsalzes eines sauren Harzes
Die vorliegende Erfindung bezieht sich auf ein Verfahren zur Herstellung von neuen -Methylbenzyl- hydrazinsalzen eines sauren Harzes, die beständig sind und antidepressive, stimulierende und krampfverhindernde Eigenschaften besitzen.
Das erfindungsgemässe Verfahren ist dadurch gekennzeichnet, dass man -Methylbenzylhydrazin oder ein Salz davon mit einem sauren Harz umsetzt.
Als Ausgangsmaterialien im erfindungsgemässen Verfahren geeignete Salze des cr-Methylbenzylhydra- zins sind beispielsweise Säureadditionssalze mit anorganischen Säuren, z. B. mit Schwefelsäure, oder mit gewöhnlichen organischen Säuren, beispielsweise mit Oxalsäure. Zu den geeigneten sauren Harzen gehören beispielsweise sulfonierte Polystyrolharze, und insbesondere jene, welche im Handel unter der Markenbezeichnung Zeocarb 225 und Dowex 50X erhältlich sind.
Das erfindungsgemässe Verfahren kann bequem in wässrigem Medium ausgeführt werden.
Die Erfindung wird durch die folgenden Beispiele, in denen die Teile Gewichtsteile bedeuten, erläutert, ohne indessen darauf beschränkt zu sein.
Beispiel I
4,6 Teile eines sulfonierten Polystyrolharzes (Markenprodukt Zeocarb 225 ) von einer Partikelgrösse von 50 Mikron werden einer Lösung von 2 Teilen a-Methylbenzylhydrazin-sulfat in 50 Teilen Wasser zugesetzt. Das so erhaltene Gemisch wird gerührt und filtriert und der Rückstand mit Wasser ge waschen und getrocknet. Auf diese Weise erhält man ein -Methylbenzylhydrazinsalz von sulfoniertem Polystyrol mit einem Gehalt an -Methylbenzylhydrazin von 35 %.
Beispiel 2
4 Teile eines sulfonierten Polystyrolharzes (Markenprodukt Dowex 50X ) von einer Partikelgrösse von 100-200 Mikron werden einer Lösung von 2,26 Teilen a-Methylbenzylhydrazin-oxalat in 100 Teilen Wasser zugegeben. Das so erhaltene Gemisch wird gerührt und filtriert und der Rückstand mit Wasser gewaschen und getrocknet. Auf diese Weise erhält man ein -Methylbenzylhydrazinsalz von sulfoniertem Polystyrol mit einem a-Methylbenzylhy- drazin-Gehalt von 31 %.
PATENTANSPRUCH
Verfahren zur Herstellung des a-Methylbenzylhy- drazinsalzes eines sauren Harzes, dadurch gekennzeichnet, dass man a-Methylbenzylhydrazin oder ein Salz davon mit einem sauren Harz umsetzt.
UNTERANSPRÜCHE
1. Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man als Ausgangsmaterial ein Säureadditionssalz des a-Methylbenzylhydrazins mit einer anorganischen Säure, z. B. Oxalsäure, verwendet.
2. Verfahren nach Patentanspruch oder Unteranspruch 1, dadurch gekennzeichnet, dass man als saures Harz ein sulfoniertes Polystyrolharz verwendet.
**WARNUNG** Ende DESC Feld konnte Anfang CLMS uberlappen**.
Process for the preparation of the ci-methyl benzyl hydrazine salt of an acidic resin
The present invention relates to a process for the preparation of new methylbenzyl hydrazine salts of an acidic resin which are stable and have antidepressant, stimulant and antispasmodic properties.
The process according to the invention is characterized in that methylbenzylhydrazine or a salt thereof is reacted with an acidic resin.
Salts of α-methylbenzylhydrazine suitable as starting materials in the process according to the invention are, for example, acid addition salts with inorganic acids, e.g. B. with sulfuric acid, or with common organic acids, for example with oxalic acid. Suitable acidic resins include, for example, sulfonated polystyrene resins, and particularly those commercially available under the trademark Zeocarb 225 and Dowex 50X.
The process according to the invention can conveniently be carried out in an aqueous medium.
The invention is illustrated by the following examples, in which the parts mean parts by weight, without, however, being restricted thereto.
Example I.
4.6 parts of a sulfonated polystyrene resin (branded product Zeocarb 225) with a particle size of 50 microns are added to a solution of 2 parts of α-methylbenzylhydrazine sulfate in 50 parts of water. The mixture thus obtained is stirred and filtered, and the residue is washed with water and dried. In this way, a methylbenzylhydrazine salt of sulfonated polystyrene is obtained with a methylbenzylhydrazine content of 35%.
Example 2
4 parts of a sulfonated polystyrene resin (branded product Dowex 50X) with a particle size of 100-200 microns are added to a solution of 2.26 parts of α-methylbenzylhydrazine oxalate in 100 parts of water. The mixture thus obtained is stirred and filtered, and the residue is washed with water and dried. In this way, a methylbenzylhydrazine salt of sulfonated polystyrene is obtained with an α-methylbenzylhydrazine content of 31%.
PATENT CLAIM
Process for the preparation of the α-methylbenzylhydrazine salt of an acidic resin, characterized in that α-methylbenzylhydrazine or a salt thereof is reacted with an acidic resin.
SUBCLAIMS
1. The method according to claim, characterized in that the starting material used is an acid addition salt of a-methylbenzylhydrazine with an inorganic acid, e.g. B. oxalic acid is used.
2. The method according to claim or dependent claim 1, characterized in that a sulfonated polystyrene resin is used as the acidic resin.
** WARNING ** End of DESC field could overlap beginning of CLMS **.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB41454/58A GB919491A (en) | 1958-12-23 | 1958-12-23 | Pharmaceutical compositions |
GB2129159 | 1959-06-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH384139A true CH384139A (en) | 1964-11-15 |
Family
ID=26255251
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH8225159A CH384139A (en) | 1958-12-23 | 1959-12-22 | Process for the preparation of the α-methylbenzylhydrazine salt of an acidic resin |
Country Status (2)
Country | Link |
---|---|
CH (1) | CH384139A (en) |
DK (1) | DK103724C (en) |
-
1959
- 1959-12-22 CH CH8225159A patent/CH384139A/en unknown
- 1959-12-23 DK DK451060A patent/DK103724C/en active
Also Published As
Publication number | Publication date |
---|---|
DK103724C (en) | 1966-02-14 |
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