CH221162A - Process for the production of an ether of thioammelin. - Google Patents
Process for the production of an ether of thioammelin.Info
- Publication number
- CH221162A CH221162A CH221162DA CH221162A CH 221162 A CH221162 A CH 221162A CH 221162D A CH221162D A CH 221162DA CH 221162 A CH221162 A CH 221162A
- Authority
- CH
- Switzerland
- Prior art keywords
- thioammelin
- production
- ether
- ethylene
- product
- Prior art date
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Verfahren zur Herstellung eines Äthers des Thioammelins. Vorliegendes Patent bezieht sich auf ein Verfahren zur Herstellung eines Äthers des Thioammelins, dadurch gekennzeichnet, dass man Thioammelin in alkalischem Medium mit einem Äthylenhalogenid im molekularen Verhältnis 2 : 1 behandelt.
Der so erhaltene Di-thioammelin-äthylen- äther ist ein farbloses Pulver vom Schmelz punkt 264 C und ist mit dem von Rathke durch Erhitzen von Thioammelin mit Äthy- lenbromid in alkoholischer Lösung dargestell ten Produkt (Berichte 20, Seite 1063) nicht identisch. Er soll als Zwischenprodukt zur Herstellung von Kunstharzen und Textil hilfsmitteln Verwendung finden.
<I>Beispiel:</I> 143 Teile Thioammelin werden in etwa 1800 Teilen Wasser und 240 Teilen Natron lauge 40 B6 gelöst. Man lässt bei 35 bis 40 C 94 Teile Athylenbromid unter starkem Rühren zufliessen. Nach etwa zwölfstündiger Einwirkung ist die Umsetzung beendet.
Das Reaktionsprodukt wird abgesaugt, mit verdünnter Natronlauge gedeckt und mit Wasser neutral gewaschen. Zwecks Reini gung wird das Reaktionsprodulei, aus 50 % iger Essigsäure umkristallisiert, wobei man das Acetat erhält, aus dem die Base mit wässe riger Sodalösung in Freiheit gesetzt, neutral gewaschen und getrocknet wird.
Process for the production of an ether of thioammelin. The present patent relates to a process for the production of an ether of thioammelin, characterized in that thioammelin is treated in an alkaline medium with an ethylene halide in a molecular ratio of 2: 1.
The diethioammelin ethylene ether obtained in this way is a colorless powder with a melting point of 264 C and is not identical to the product presented by Rathke by heating thioammelin with ethylene bromide in an alcoholic solution (Reports 20, page 1063). It should be used as an intermediate product for the production of synthetic resins and textile auxiliaries.
<I> Example: </I> 143 parts of thioammelin are dissolved in about 1800 parts of water and 240 parts of caustic soda 40 B6. 94 parts of ethylene bromide are allowed to flow in at 35 ° to 40 ° C. with vigorous stirring. The reaction is complete after about twelve hours of exposure.
The reaction product is filtered off with suction, covered with dilute sodium hydroxide solution and washed neutral with water. For the purpose of cleaning, the reaction product is recrystallized from 50% acetic acid, the acetate being obtained, from which the base is liberated with aqueous soda solution, washed neutral and dried.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE221162X | 1939-03-04 | ||
CH218074T | 1940-02-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH221162A true CH221162A (en) | 1942-05-15 |
Family
ID=25726098
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH221162D CH221162A (en) | 1939-03-04 | 1940-02-20 | Process for the production of an ether of thioammelin. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH221162A (en) |
-
1940
- 1940-02-20 CH CH221162D patent/CH221162A/en unknown
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