AT282633B - PROCESS FOR PREPARING NEW CINNAMID AMIDES - Google Patents

PROCESS FOR PREPARING NEW CINNAMID AMIDES

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Publication number
AT282633B
AT282633B AT837369A AT837369A AT282633B AT 282633 B AT282633 B AT 282633B AT 837369 A AT837369 A AT 837369A AT 837369 A AT837369 A AT 837369A AT 282633 B AT282633 B AT 282633B
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AT
Austria
Prior art keywords
amides
cinnamic acid
cinnamid
preparing new
residue
Prior art date
Application number
AT837369A
Other languages
German (de)
Original Assignee
Thomae Gmbh Dr K
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 Thomae Gmbh Dr K filed Critical Thomae Gmbh Dr K
Priority to AT837369A priority Critical patent/AT282633B/en
Application granted granted Critical
Publication of AT282633B publication Critical patent/AT282633B/en

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Description

  

   <Desc/Clms Page number 1> 
 



  Verfahren zur Herstellung neuer Zimtsäureamide 
Die Erfindung betrifft ein Verfahren zur Herstellung neuer Zimtsäureamide der allgemeinen Formel 
 EMI1.1 
 in der    R 1 ein Brom - oder Jodatom   und Rz einen Piperidino- oder Morpholinorest bedeuten. 



   Die neuen Verbindungen werden erfindungsgemäss nach folgendem Verfahren hergestellt :
Ersatz eines Chlormercurirestes in einer Verbindung der allgemeinen Formel 
 EMI1.2 
 
 EMI1.3 
 

 <Desc/Clms Page number 2> 

 lösung wird mit verdünnter Natriumbicarbonatlösung und mit Wasser gewaschen, getrocknet, filtriert und eingedampft. Der Eindampfrückstand wird in heissem Benzol einmal mit Aktivkohle behandelt. Der Eindampfrückstand (2, 25 g) der Benzollösung wird an 100 g Kieselgel (Benzol/Aceton = 10 : 1) säulenchromatographiert. Aus 1,   58 g einheitlichem.   rohem Elutionsrückstand wird durch Umkristallisation aus Benzol/Cyclohexan 1, 2 g   zo   d. Th.) 4-Brom-zimsäurepiperidid vom Fp. 132 bis 133 C erhalten. 



   Beispiel2 :4-Jod-zimtsäurepiperidid
Zu einer Suspension von 4, 22 g (0, 094 Mol) 4-Chlormercuri-zimtsäurepiperidid (Fp. bei 180 bis 190 C, hergestellt aus 4-Natriumsulfinyl-zimtsäurepiperidid und Quecksilberdichlorid) in 75 ml absolutem Äthanol, die in einem Bad von   700C   gerührt wird, wird eine Lösung von 2, 36 g (0, 093 Mol) Jod in 25 ml absolutem Äthanol binnen 45 min getropft. Nach   11/2   h Rühren bei   700C   wird die klare, hellbraune Lösung im Vakuum eingedampft. Der Rückstand wird mit Chloroform digeriert. Die Chloroformphase wird   mit verdünnter Natriumbicarbonatlösung,   mit verdünnter Natriumbisulfitlösung und mit Wasser gewaschen, getrocknet und eingedampft. Der Rückstand wird an 160 g Kieselgel (Benzol/Aceton = 10 : 2) säulenchromatographiert.

   Der einheitliche Elutionsrückstand (2, 45 g) wird aus Cyclohexan nach Filtration umkristallisiert.   Ausbeute : 1, 9   g (70% d. Th.), Fp. 133 bis   134 C.   



   Analog wurden folgende Verbindungen hergestellt : 
3-Brom-zimtsäurepiperidid, Fp. 95 bis   990C  
4-Brom-zimtsäuremorpholid, Fp. 142 bis 1440C
3-Brom-zimtsäuremorpholid, Fp. 80 bis 81 C   3-Jod-zimtsäurepiperidid,   Fp. 109 bis 1100C
4-Jod-zimtsäuremorpholid, Fp. 175 bis 177 C
3-Jod-zimtsäuremorpholid. Fp. 100 bis   101 C.   



   Die erfindungsgemäss hergestellten Verbindungen der Formel (I) lassen sich nach an sich bekannten Methoden in übliche pharmazeutische Anwendungsformen, gegebenenfalls in Kombination mit andern Wirksubstanzen, einarbeiten. Die Einzeldosis beträgt bei Erwachsenen 200, 00 bis 600, 00 mg, bevorzugt 
 EMI2.1 
 
001. Verfahren zur Herstellung neuer Zimtsäureamide der allgemeinen Formel 
 EMI2.2 
 in der   R ein Brom-oder Jodatom   und R2 einen Piperidino- oder Morpholinorest bedeuten, dadurch gekennzeichnet, dass in einer Verbindung der allgemeinen Formel 
 EMI2.3 
 in der R2 wie eingangs definiert ist, der Chlormercurirest durch Brom oder Jod ersetzt wird.



   <Desc / Clms Page number 1>
 



  Process for the production of new cinnamic acid amides
The invention relates to a process for the preparation of new cinnamic acid amides of the general formula
 EMI1.1
 in which R 1 is a bromine or iodine atom and Rz is a piperidino or morpholino radical.



   According to the invention, the new compounds are prepared by the following process:
Replacement of a Chlormercurirestes in a compound of the general formula
 EMI1.2
 
 EMI1.3
 

 <Desc / Clms Page number 2>

 solution is washed with dilute sodium bicarbonate solution and with water, dried, filtered and evaporated. The evaporation residue is treated once with activated charcoal in hot benzene. The evaporation residue (2.5 g) of the benzene solution is column chromatographed on 100 g of silica gel (benzene / acetone = 10: 1). Made from 1.58 g uniform. crude elution residue is obtained by recrystallization from benzene / cyclohexane 1, 2 g zo d. Th.) 4-Bromo-cimic acid piperidide of melting point 132 to 133 ° C.



   Example 2: 4-iodo-cinnamic acid piperidide
To a suspension of 4.22 g (0.094 mol) of 4-chloromercuric cinnamic acid piperidide (melting point at 180 to 190 ° C., prepared from 4-sodium sulfinyl cinnamic acid piperidide and mercury dichloride) in 75 ml of absolute ethanol, which in a bath at 700 is stirred, a solution of 2.36 g (0.093 mol) of iodine in 25 ml of absolute ethanol is added dropwise within 45 min. After stirring for 11/2 h at 70 ° C., the clear, light brown solution is evaporated in vacuo. The residue is digested with chloroform. The chloroform phase is washed with dilute sodium bicarbonate solution, with dilute sodium bisulfite solution and with water, dried and evaporated. The residue is column chromatographed on 160 g of silica gel (benzene / acetone = 10: 2).

   The uniform elution residue (2.45 g) is recrystallized from cyclohexane after filtration. Yield: 1.9 g (70% of theory), melting point 133 to 134 C.



   The following connections were made in the same way:
3-Bromo-cinnamic acid piperidide, m.p. 95-990C
4-Bromo-cinnamic acid morpholide, m.p. 142 to 1440C
3-Bromo-cinnamic acid morpholide, m.p. 80 to 81 C. 3-Iodo-cinnamic acid piperidide, m.p. 109 to 1100C
4-iodo-cinnamic acid morpholide, m.p. 175-177 ° C
3-iodocinnamic acid morpholide. Mp. 100 to 101 C.



   The compounds of the formula (I) prepared according to the invention can be incorporated into customary pharmaceutical application forms by methods known per se, if appropriate in combination with other active substances. The single dose in adults is 200.00 to 600.00 mg, preferably
 EMI2.1
 
001. Process for the preparation of new cinnamic acid amides of the general formula
 EMI2.2
 in which R is a bromine or iodine atom and R2 is a piperidino or morpholino radical, characterized in that in a compound of the general formula
 EMI2.3
 in which R2 is as defined at the outset, the chlorine mercury residue is replaced by bromine or iodine.

 

Claims (1)

2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Umsetzung in einem Lösungsmittel durchgeführt wird. 2. The method according to claim 1, characterized in that the reaction is carried out in a solvent.
AT837369A 1968-11-05 1968-11-05 PROCESS FOR PREPARING NEW CINNAMID AMIDES AT282633B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT837369A AT282633B (en) 1968-11-05 1968-11-05 PROCESS FOR PREPARING NEW CINNAMID AMIDES

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT837369A AT282633B (en) 1968-11-05 1968-11-05 PROCESS FOR PREPARING NEW CINNAMID AMIDES

Publications (1)

Publication Number Publication Date
AT282633B true AT282633B (en) 1970-07-10

Family

ID=3604896

Family Applications (1)

Application Number Title Priority Date Filing Date
AT837369A AT282633B (en) 1968-11-05 1968-11-05 PROCESS FOR PREPARING NEW CINNAMID AMIDES

Country Status (1)

Country Link
AT (1) AT282633B (en)

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