AT73653B - Process for the preparation of durable preparations of diaminodioxyarsenobenzene. - Google Patents
Process for the preparation of durable preparations of diaminodioxyarsenobenzene.Info
- Publication number
- AT73653B AT73653B AT73653DA AT73653B AT 73653 B AT73653 B AT 73653B AT 73653D A AT73653D A AT 73653DA AT 73653 B AT73653 B AT 73653B
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- AT
- Austria
- Prior art keywords
- preparations
- diaminodioxyarsenobenzene
- preparation
- durable
- ether
- Prior art date
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- Medicinal Preparation (AREA)
Description
<Desc/Clms Page number 1>
Verfahren zur Darstellung haltbarer Präparate von Diaminodioxyar8enobenzol.
Es wurde gefunden, dass man feste, haltbare Präparate von Alkalisalzen des 4. 4'.
-Dioxy-3. 3'-diaminoarsenbenzols gewinnt, indem man diese Alkalisalze, in Wasser gelöst, mit polyvalenten Alkoholen, d. h. Alkoholen, die mehr als drei Hydroxyle enthalten, wie z. B. Erythrit und Mannit, versetzt und sodann aus dieser Lösung durch Zugabe von Alkohol und Äther die neuen Präparate fällt und abtrennt. Aller Wahrscheinlichkeit nach liegen in denselben nicht neue, chemische Verbindungen, sondern innige Gemenge der genannten Alkalisalze mit den mehrwertigen Alkoholen vor. Die neuen Präparate sind zitronengelbe, in Wasser leicht und mit alkalischer Reaktion lösliche, in Alkohol und Äther schwer lösliche Pulver. Ihre Lösung scheidet auf Zusatz von verdünnter Salzsäure zunächst Diaminodioxyarsenobenzol ab, welches durch mehr Salzsäure wieder gelöst wird.
Im Gegensatz zu den reinen Alkalisalzen des Diaminodioxyarsenobenzols halten, sich die neuen Präparate unverändert, wenn sie in Glasampullen unter Luftabschluss aufbewahrt werden.
Zur Darstellung der neuen Präparate verfährt man wie folgt :
EMI1.1
27'2'1 Mannit, gelöst in 100 < "M Wasser, hinzugegeben. Die entstehende Lösung wird mit 4 1 absolutem Alkohol und 4 1 Äther versetzt. Es scheidet sich ein gelbes Pulver ab, das abfiltriert, mit Alkohol und Äther gewaschen und im Vakuum getrocknet wird. Es hat die oben angegebenen Eigenschaften.
**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.
<Desc / Clms Page number 1>
Process for the preparation of durable preparations of diaminodioxyar8enobenzene.
It has been found that solid, durable preparations of alkali salts of the 4th 4 '.
-Dioxy-3. 3'-diaminoarsenobenzene is obtained by combining these alkali salts, dissolved in water, with polyvalent alcohols, d. H. Alcohols containing more than three hydroxyls, such as. B. erythritol and mannitol are added and then the new preparations fall and separate from this solution by adding alcohol and ether. In all probability they do not contain new chemical compounds, but intimate mixtures of the alkali salts mentioned with the polyhydric alcohols. The new preparations are lemon yellow powders that are easily soluble in water and with an alkaline reaction, and poorly soluble in alcohol and ether. Upon the addition of dilute hydrochloric acid, your solution initially separates diaminodioxyarsenobenzene, which is redissolved with more hydrochloric acid.
In contrast to the pure alkali salts of diaminodioxyarsenobenzene, the new preparations remain unchanged if they are stored in glass ampoules in the absence of air.
To display the new preparations, proceed as follows:
EMI1.1
27'2'1 mannitol, dissolved in 100 <"M water, is added. The resulting solution is mixed with 4 liters of absolute alcohol and 4 liters of ether. A yellow powder separates out, which is filtered off, washed with alcohol and ether and im Vacuum dried and has the properties given above.
** WARNING ** End of DESC field may overlap beginning of CLMS **.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT73653T | 1914-12-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
AT73653B true AT73653B (en) | 1917-08-10 |
Family
ID=3595315
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT73653D AT73653B (en) | 1914-12-19 | 1914-12-19 | Process for the preparation of durable preparations of diaminodioxyarsenobenzene. |
Country Status (1)
Country | Link |
---|---|
AT (1) | AT73653B (en) |
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1914
- 1914-12-19 AT AT73653D patent/AT73653B/en active
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