CH221163A - Process for the production of an ether of thioammelin. - Google Patents
Process for the production of an ether of thioammelin.Info
- Publication number
- CH221163A CH221163A CH221163DA CH221163A CH 221163 A CH221163 A CH 221163A CH 221163D A CH221163D A CH 221163DA CH 221163 A CH221163 A CH 221163A
- Authority
- CH
- Switzerland
- Prior art keywords
- thioammelin
- ether
- production
- parts
- way
- Prior art date
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- 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 Äthylenehlorhydrin behandelt.
Der so erhaltene Thioammelinoxäthyl- äther ist ein farbloses kristallines Pulver vom Schmelzpunkt 185 bis 186 C. Er soll als Zwischenprodukt zur Herstellung von Kunstharzen und Textilhilfsmitteln Verwen dung finden.
<I>Beispiel:</I> 143 Teile Thioammelin werden in etwa 1500 Teilen Wasser und 126 Teilen Natron lauge 40' Be bei 35 bis 40' C gelöst. Man lässt zu der Lösung unter Rühren und ge lindem Kühlen 88 Teile Äthylenchlorhydrin einlaufen, heizt auf 90 bis 95 C, lässt bis zur Beendigung der Umsetzung bei dieser Temperatur rühren und filtriert die heisse Lösung von flockigen Abscheidungen ab. Das Reaktionsprodukt, das beim Erkalten der Lösung in farblosen Nädelchen auskristalli siert, wird abgesaugt, mit kaltem Wasser ge waschen und im Vakuum getrocknet.
Es kann durch Umkristallisieren aus Wasser noch weiter gereinigt werden.
In gleicher Weise kann man auch Äthy- lenbromhydrin verwenden.
Process for the production of an ether of thioammelin. The present patent relates to a process for the preparation of an ether of thioammelin, characterized in that thioammelin is treated in an alkaline medium with ethylene chlorohydrin.
The thioammelinoxethyl ether obtained in this way is a colorless crystalline powder with a melting point of 185 to 186 C. It is said to be used as an intermediate in the manufacture of synthetic resins and textile auxiliaries.
<I> Example: </I> 143 parts of thioammelin are dissolved in about 1500 parts of water and 126 parts of 40 'Be sodium hydroxide solution at 35 to 40' C. 88 parts of ethylene chlorohydrin are allowed to run into the solution with stirring and gentle cooling, the mixture is heated to 90 to 95 ° C., and the mixture is stirred at this temperature until the reaction is complete and the hot solution is filtered to remove flaky deposits. The reaction product, which crystallizes out in colorless needles when the solution cools, is filtered off with suction, washed with cold water and dried in vacuo.
It can be further purified by recrystallizing it from water.
Ethylene bromohydrin can also be used in the same way.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE221163X | 1939-03-04 | ||
CH218074T | 1940-02-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH221163A true CH221163A (en) | 1942-05-15 |
Family
ID=25726099
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH221163D CH221163A (en) | 1939-03-04 | 1940-02-20 | Process for the production of an ether of thioammelin. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH221163A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4025228A (en) * | 1974-07-09 | 1977-05-24 | Ateliers Des Charmilles S.A. | Hydraulic plant |
-
1940
- 1940-02-20 CH CH221163D patent/CH221163A/en unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4025228A (en) * | 1974-07-09 | 1977-05-24 | Ateliers Des Charmilles S.A. | Hydraulic plant |
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