CH149008A - Process for the preparation of a halogen-containing basic ether. - Google Patents
Process for the preparation of a halogen-containing basic ether.Info
- Publication number
- CH149008A CH149008A CH149008DA CH149008A CH 149008 A CH149008 A CH 149008A CH 149008D A CH149008D A CH 149008DA CH 149008 A CH149008 A CH 149008A
- Authority
- CH
- Switzerland
- Prior art keywords
- halogen
- preparation
- containing basic
- basic ether
- ether
- Prior art date
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Verfahren zur Darstellung eines halogenhaltigen basischen Äthers. Es wurde gefunden, dass man zu einem halogenhaltigen basischen Äther gelangen kann, wenn man einen reaktionsfähigen Ester des Diäthylaminoäthanols in Gegenwart säure bindender Mittel auf 4-Brom,1-riaphtol ein wirken lässt.
Das 1-Diäthylaminoäthoxy-4-bromnaph- thalin bildet ein gelbes Öl. Das Hydrochlorid schmilzt bei 179-180 und das Hydro- bromid bei 174-175 . Beide Salze stellen farblose Kristalle dar; das erstere löst sich leicht, das letztere schwerer in Wasser.
Die neue Verbindung soll zu therapeu tischen Zwecken Verwendung finden. <I>Beispiel:</I> 1,25 Teile 4-Brom-l-naphtol, 1 Teil Chlor- äthyldiäthylaminhydrochlorid und 2,5 Teile Pottasche werden in Aceton unter Rühren gekocht. Nach beendigter Reaktion wird vom anorganischen Anteil abgenutscht, das Aceton abdestilliert, der Rückstand in Äther auf genommen und mehrmals mit verdünnter Natronlauge behandelt. Nach dem Vertreiben des Lösungsmittels bleibt das 1-Diäthyl- auiinoäthogy-4-bromnaphthalin als gelbes<B>01</B> zurück.
Die Reaktion kann auch in andern Lö sungsmitteln, z. B. in Alkohol oder Wasser, ausgeführt werden. Als säurebindende Mittel kommen ferner andere alkalisch reagierende Verbindungen, wie zum Beispiel die Hy- droxyde oder Alkoholate der Allzaü- oder Erdalkalimetalle, in Betracht. Ausserdem kann man an Stelle von Halogenäthyldiäthylamin auch andere reaktionsfähige Ester des Diäthyl- aminoäthanols, z. B. diejenigen aromatischer Sulfosäuren, verwenden.
Process for the preparation of a halogen-containing basic ether. It has been found that a halogen-containing basic ether can be obtained if a reactive ester of diethylaminoethanol is allowed to act on 4-bromine, 1-riaphtol in the presence of acid-binding agents.
The 1-diethylaminoethoxy-4-bromonaphthalene forms a yellow oil. The hydrochloride melts at 179-180 and the hydrobromide at 174-175. Both salts are colorless crystals; the former dissolves easily, the latter more difficult in water.
The new connection is intended to be used for therapeutic purposes. <I> Example: </I> 1.25 parts of 4-bromo-1-naphthol, 1 part of chloroethyldiethylamine hydrochloride and 2.5 parts of potash are boiled in acetone while stirring. After the reaction has ended, the inorganic component is filtered off with suction, the acetone is distilled off, the residue is taken up in ether and treated several times with dilute sodium hydroxide solution. After the solvent has been driven off, the 1-diethyl auiinoethogy-4-bromonaphthalene remains as a yellow 01.
The reaction can also solvents in other Lö, z. B. in alcohol or water. Other alkaline compounds, such as, for example, the hydroxides or alcoholates of all-tooth or alkaline earth metals, can also be used as acid-binding agents. In addition, other reactive esters of diethyl aminoethanol, eg. B. those of aromatic sulfonic acids, use.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH146120T | 1929-04-05 | ||
CH149008T | 1929-04-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH149008A true CH149008A (en) | 1931-08-15 |
Family
ID=25714810
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH149008D CH149008A (en) | 1929-04-05 | 1929-04-05 | Process for the preparation of a halogen-containing basic ether. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH149008A (en) |
-
1929
- 1929-04-05 CH CH149008D patent/CH149008A/en unknown
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