CH163448A - Process for obtaining a durable derivative of cyclohexenyl-ethyl-barbituric acid. - Google Patents

Process for obtaining a durable derivative of cyclohexenyl-ethyl-barbituric acid.

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Publication number
CH163448A
CH163448A CH163448DA CH163448A CH 163448 A CH163448 A CH 163448A CH 163448D A CH163448D A CH 163448DA CH 163448 A CH163448 A CH 163448A
Authority
CH
Switzerland
Prior art keywords
ethyl
cyclohexenyl
barbituric acid
obtaining
durable
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellsc Farbenindustrie
Original Assignee
Ig Farbenindustrie Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ig Farbenindustrie Ag filed Critical Ig Farbenindustrie Ag
Publication of CH163448A publication Critical patent/CH163448A/en

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Description

  

  Verfahren zur Gewinnung eines haltbaren Derivates der     Cyclohexenyl-äthyl-          barbitursäure.       Das Hauptpatent betrifft ein Verfahren  zur Gewinnung eines haltbaren Salzes der       Cyclohexenyl-äthyl-barbitursäure,    welches da  durch gekennzeichnet ist,     dass    man die     Cyclo-          hexeiiyl-äthyl-barbitursäure    in Gegenwart von  Alkali mit einer     Caleiumverbindung    in ihr       Calciumsalz    umwandelt, das gegen den     Ein-          fluss    des Lichtes und des Luftsauerstoffes  nicht     mir    sehr beständig,

   sondern darüber  hinaus auch eine schnellere Resorption zeigt.  



  Es wurde nun gefunden,     dass    man die       Cyclohexenyl-äthyl-barbitursäureauchdadurch     in ein haltbares Salz von ähnlichen Eigen  schaften, umwandeln kann, wenn man sie in  Gegenwart von Alkali durch Einwirkung  einer     Lithiumverbindung    in das     cyelohexenyl-          äthyl-barbitLirsaure        Lithium    überführt.  



  Das Endprodukt stellt ein in Wasser       schwerlösliches    weisses Pulver dar, das man  durch Zusatz von starken Säuren in die in  Wasser ebenfalls     schwerlösliche    Cyclohexenyl-         äthyl-barbitursäure,    die nach dem Trocknen  den Schmelzpunkt<B>172 0</B> zeigt,     rückverwandeln     kann.  



  <I>Beispiel:</I>  Eine aus<B>25</B>     Gewichtsteilen        Cyclohexenyl-          äthyl-barbitursäure    und<B>106</B> Gewichtsteilen       n-Natronlauge    bei<B>30 0</B> hergestellte Lösung  wird mit einer Lösung von<B>8,3</B> Gewichts  teilen     Lithiuinehlorid    (2     aq)    in 20 Gewichts  teilen Wasser versetzt und das nach längerem  Stehen ausgeschiedene     Lithiumsalz    der     Cyclo-          hexenyl-äthyl-bai,bitursäure    gewaschen und  im Vakuum     getroknet.  



  Process for obtaining a durable derivative of cyclohexenyl-ethyl-barbituric acid. The main patent relates to a process for obtaining a stable salt of cyclohexenyl-ethyl-barbituric acid, which is characterized in that the cyclohexenyl-ethyl-barbituric acid is converted in the presence of alkali with a calcium compound into its calcium salt, which is flow of light and oxygen from the air not very steady for me,

   but also shows faster absorption.



  It has now been found that the cyclohexenyl-ethyl-barbituric acid can also be converted into a durable salt of similar properties if it is converted into the cyelohexenyl-ethyl-barbituric acid lithium in the presence of alkali by the action of a lithium compound.



  The end product is a white powder which is sparingly soluble in water and which can be converted back into cyclohexenylethylbarbituric acid, which is also sparingly soluble in water and which has a melting point of 172 ° after drying, by adding strong acids.



  <I> Example: </I> A solution prepared from <B> 25 </B> parts by weight of cyclohexenylethylbarbituric acid and <B> 106 </B> parts by weight of n-sodium hydroxide solution at <B> 30 0 </B> a solution of 8.3 parts by weight of lithium chloride (2 aq) in 20 parts by weight of water is added, and the lithium salt of cyclohexenylethylbita, bituric acid which separates out after prolonged standing is washed and dried in vacuo .

Claims (1)

PATENTANSPR-9011. Verfahren zur Gewinnung eines haltbaren Salzes der Cyclohexenyl-äthyl-barbitursätire, dadurch gekennzeichnet, dass man die Cyclo- hexenyl-äthyl-barbitursäure in Gegenwart von Alkali durch Einwirkung einer Lithiumver- bindung in ihr Lithiumsalz überführt. PATENT APPLICATION 9011. Process for obtaining a stable salt of cyclohexenyl-ethyl-barbituric acid, characterized in that the cyclohexenyl-ethyl-barbituric acid is converted into its lithium salt in the presence of alkali by the action of a lithium compound. Das Endprodukt stellt ein in Wasser sch-werlösliches weisses Pulver dar, das man durch Zusatz von starken Säuren in die in Wasser ebenfalls schwerlösliche Cyclohexenyl- ätbyl-barbitursäure, die nach dem Trocknen den Schmelzpunkt<B>172 0</B> zeigt, rückverwandeln kann. Es ist gegen die Einwirkung des Lichtes und des Luftsauerstoffes sehr be ständig. The end product is a white powder that is sparingly soluble in water, which is converted back into cyclohexenylethylbarbituric acid, which is also sparingly soluble in water and which has a melting point of 172 ° after drying, by adding strong acids can. It is very resistant to the effects of light and atmospheric oxygen.
CH163448D 1931-05-21 1932-05-12 Process for obtaining a durable derivative of cyclohexenyl-ethyl-barbituric acid. CH163448A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE163448X 1931-05-21
CH161692T 1932-05-12

Publications (1)

Publication Number Publication Date
CH163448A true CH163448A (en) 1933-08-15

Family

ID=25717463

Family Applications (1)

Application Number Title Priority Date Filing Date
CH163448D CH163448A (en) 1931-05-21 1932-05-12 Process for obtaining a durable derivative of cyclohexenyl-ethyl-barbituric acid.

Country Status (1)

Country Link
CH (1) CH163448A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2501551A (en) * 1950-03-21 S-cycloheptenyl-s-ethyl barbituric

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2501551A (en) * 1950-03-21 S-cycloheptenyl-s-ethyl barbituric

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