AT281822B - Process for the production of new cinnamic acid amides - Google Patents

Process for the production of new cinnamic acid amides

Info

Publication number
AT281822B
AT281822B AT1075668A AT1075668A AT281822B AT 281822 B AT281822 B AT 281822B AT 1075668 A AT1075668 A AT 1075668A AT 1075668 A AT1075668 A AT 1075668A AT 281822 B AT281822 B AT 281822B
Authority
AT
Austria
Prior art keywords
cinnamic acid
acid amides
chloroform
production
general formula
Prior art date
Application number
AT1075668A
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 AT1075668A priority Critical patent/AT281822B/en
Priority to NL6816625A priority patent/NL6816625A/xx
Priority to BE724746D priority patent/BE724746A/xx
Priority to FR1593868D priority patent/FR1593868A/fr
Priority to ES360959A priority patent/ES360959A1/en
Priority to IL31191A priority patent/IL31191A/en
Priority to GB57154/68A priority patent/GB1190680A/en
Priority to IE1470/68A priority patent/IE32544B1/en
Priority to DE19681814625 priority patent/DE1814625C/en
Priority to FR183229A priority patent/FR8274M/fr
Priority to CH1710672A priority patent/CH532049A/en
Priority to CH144372A priority patent/CH522641A/en
Priority to CH1710572A priority patent/CH532048A/en
Priority to CH1666972A priority patent/CH533113A/en
Priority to CH1604469A priority patent/CH522640A/en
Priority to CH1667172A priority patent/CH532046A/en
Priority to CH1710272A priority patent/CH532047A/en
Priority to CH1710372A priority patent/CH533114A/en
Priority to ES373169A priority patent/ES373169A1/en
Priority to ES373187A priority patent/ES373187A1/en
Priority to ES373190A priority patent/ES373190A1/en
Priority to BR213945/69A priority patent/BR6913945D0/en
Priority to SE15196/69A priority patent/SE352888B/xx
Priority to US885256A priority patent/US3590041A/en
Priority to DE19702019344 priority patent/DE2019344A1/en
Priority to BE750846D priority patent/BE750846R/en
Priority to GB24970/70A priority patent/GB1291559A/en
Application granted granted Critical
Publication of AT281822B publication Critical patent/AT281822B/en

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  • Hydrogenated Pyridines (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



  Verfahren zur Herstellung neuer Zimtsäureamide 
In einem noch nicht zum Stande der Technik gehörenden Vorschlag wird ein Verfahren zur Herstellung neuer Zimtsäureamide der allgemeinen Formel I a : 
 EMI1.1 
 in der Ri ein Bromatom und R2 einen Piperidino- oder Morpholinorest bedeuten, beschrieben. 



   Es wurde nun gefunden, dass sich Verbindungen der allgemeinen Formel I, in der Ri ein Brom- oder Jodatom und   R   einen 4-Hydroxypiperidinorest darstellen, nach dem gleichen Verfahren herstellen lassen :
Umsetzung eines Zimtsäurederivates der allgemeinen Formel II : 
 EMI1.2 
 
 EMI1.3 
 
 EMI1.4 
 
 EMI1.5 
 

 <Desc/Clms Page number 2> 

 
 EMI2.1 
 versetzt das Reaktionsgemisch mit Wasser und isoliert das Produkt in üblicher Weise aus der ChloroformLösung. 
 EMI2.2 
 



   : 29, 0Ausbeute : 6% d. Th., Fp.   116-117  C (aus   Essigester). 



   Beispiel 3   : 4-Jod-zimtsäure- (4-hydroxy-piperidid).   Aus   4-Jod-zimtsäurechlorid   und 4-Hydroxypiperidin analog Beispiel 1. 



   Ausbeute : 45% d. Th., Fp. 176-177  C (aus Äthanol). 



   Beispiel 4: 3-Jod-zimtsäure-(4-hydroxy-piperidid). Aus 3-Jod-zimtsäurechloid und 4-Hydroxypiperidin analog Beispiel 1. 



   Ausbeute : 31% d. Th., Fp.   126-127  C (aus   Essigester). 



   Beispiel 5:4-Brom-zimtsäure-(4-hydroxy-piperidid). Ein Gemisch aus 5,0g (22 mMol) 4-Brom-zimtsäure und 2, 2 g (22 mMol) 4-Hydroxypiperidin wird 5 h   auf 200   C   erhitzt. Man löst das Reaktionsgemisch in Chloroform und extrahiert die Chloroformlösung mit verdünnter Natronlauge, verdünnter Salzsäure und Wasser. Die Chloroform-Phase wird über Natriumsulfat getrocknet und im Vakuum eingedampft. Den Rückstand kristallisiert man zweimal aus Essigester um. 



   Ausbeute : 1, 0 g   (15%   d. Th. ), Fp.   159-161  C..   



   Beispiel 6: 4-Brom-zimtsäure-(4-hydroxy-piperidid). Zu einer Suspension von 5, 0 g (22 mMol) 4-Brom-zimtsäure in Chloroform gibt man bei 20   C tropfenweise eine Lösung von 5, 4 g (30 mMol) Thiocarbonyl-diimidazol (hergestellt aus Thiophosgen und Imidazol) und rührt noch 30 min. Man tropft dann eine Lösung von 2, 2 g (22 mMol) 4-Hydroxypiperidin in Chloroform zu, erhitzt anschliessend 6 h unter   Rückfluss und lässt   über Nacht stehen. Nach Abfiltrieren des Niederschlags wird das Filtrat mit verdünnter Salzsäure und Wasser gewaschen, über Natriumsulfat getrocknet und im Vakuum eingedampft. Der Eindampfrückstand wird einer Säulenchromatographie an Kieselgel unterworfen   (Chloroform/Aceton   = 5 : 1). 



  Man erhält 130 mg (2% d. Th. )   4-Brom-zimtsäure- (4-hydroxy-piperidid)   vom Fp.   159-160  C.   



   Beispiel   7 : 4-Brom-zimtsäure- (4-hydroxy-piperidid).   Zu   7, 6   g (33 mMol) 4-Brom-zimtsäure und 7, 6 g (75 mMol) 4-Hydroxypiperidin in 40 ml Chloroform tropft man eine Lösung von 7, 2 g (60 mMol) Thionylchlorid in 20 ml Chloroform, wobei sich das Reaktionsgemisch bis zum schwachen Sieden erwärmt und der Niederschlag teilweise in Lösung geht. Man rührt noch 30 min, gibt anschliessend Wasser zu, trennt die organische Phase ab und wäscht sie mit verdünnter Natronlauge, verdünnter Salzsäure und Wasser. Nach dem Trocknen über Natriumsulfat wird die Chloroform-Phase im Vakuum eingedampft. Der Rückstand wird aus Essigester zweimal umkristallisiert. 



     Ausbeute : 1, 5   g   (14%   d. Th. ), Fp.   159-160  C.   



   Beispiel   8 : 4-Brom-zimtsäure- (4-hydroxy-piperidid).   Unter Eiskühlung tropft man 1, 4 g   (0,01 Mol)   Phosphortrichlorid zu einer Lösung von 6, 1 g (0, 06 Mol) 4-Hydroxypiperidin in Chloroform und gibt sofort anschliessend 6, 8 g (0, 03 Mol)   4-Brom-zimtsäuxe   zu. Das Gemisch wird 5 h zum Sieden erhitzt und nach dem Erkalten mit Wasser versetzt. Man trennt die Chloroformschicht ab, wäscht sie mit verdünnter Salzsäure, verdünnter Natronlauge und Wasser, trocknet über Natriumsulfat und engt im Vakuum ein. 



  Der Rückstand wird mit wenig Petroläther ausgekocht. Man filtriert in der Kälte das ungelöste Produkt ab und kristallisiert aus Methanol um. 



   Ausbeute : 0, 4 g   (4% d.   Th. ), Fp.   159-161   C.   



   Die   erfindungsgemäss   hergestellten Verbindungen der allgemeinen Formel I lassen sich nach an sich bekannten Methoden in übliche pharmazeutische Anwendungsformen, gegebenenfalls in Kombination mit anderen Wirksubstanzen, einarbeiten. 



   Die Einzeldosis beträgt bei Erwachsenen 200, 00-600, 00 mg, bevorzugt   300, 00-400, 00   mg. 



   Tagesdosis : 400, 00-1200, 00 mg, bevorzugt 600, 00-800, 00 mg. 

**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



   <Desc / Clms Page number 1>
 



  Process for the production of new cinnamic acid amides
In a proposal that is not yet part of the state of the art, a process for the preparation of new cinnamic acid amides of the general formula I a
 EMI1.1
 in which Ri is a bromine atom and R2 is a piperidino or morpholino radical.



   It has now been found that compounds of the general formula I in which Ri is a bromine or iodine atom and R is a 4-hydroxypiperidino radical can be prepared by the same process:
Implementation of a cinnamic acid derivative of the general formula II:
 EMI1.2
 
 EMI1.3
 
 EMI1.4
 
 EMI1.5
 

 <Desc / Clms Page number 2>

 
 EMI2.1
 the reaction mixture is mixed with water and the product is isolated from the chloroform solution in the usual way.
 EMI2.2
 



   : 29.0 Yield: 6% of theory Th., M.p. 116-117 C (from ethyl acetate).



   Example 3: 4-iodo-cinnamic acid (4-hydroxypiperidide). From 4-iodocinnamic acid chloride and 4-hydroxypiperidine as in Example 1.



   Yield: 45% of theory Th., M.p. 176-177 C (from ethanol).



   Example 4: 3-iodo-cinnamic acid (4-hydroxypiperidide). From 3-iodocinnamic acid chloride and 4-hydroxypiperidine analogously to Example 1.



   Yield: 31% of theory Th., M.p. 126-127 C (from ethyl acetate).



   Example 5: 4-Bromo-cinnamic acid- (4-hydroxypiperidide). A mixture of 5.0 g (22 mmol) 4-bromo-cinnamic acid and 2.2 g (22 mmol) 4-hydroxypiperidine is heated to 200 ° C. for 5 h. The reaction mixture is dissolved in chloroform and the chloroform solution is extracted with dilute sodium hydroxide solution, dilute hydrochloric acid and water. The chloroform phase is dried over sodium sulfate and evaporated in vacuo. The residue is recrystallized twice from ethyl acetate.



   Yield: 1.0 g (15% of theory), melting point 159-161 ° C.



   Example 6: 4-Bromo-cinnamic acid (4-hydroxypiperidide). A solution of 5.4 g (30 mmol) thiocarbonyl-diimidazole (prepared from thiophosgene and imidazole) is added dropwise at 20 ° C. to a suspension of 5.0 g (22 mmol) of 4-bromocinnamic acid in chloroform, and the mixture is stirred for a further 30 min. A solution of 2.2 g (22 mmol) of 4-hydroxypiperidine in chloroform is then added dropwise, the mixture is then heated under reflux for 6 h and left to stand overnight. After the precipitate has been filtered off, the filtrate is washed with dilute hydrochloric acid and water, dried over sodium sulfate and evaporated in vacuo. The evaporation residue is subjected to column chromatography on silica gel (chloroform / acetone = 5: 1).



  130 mg (2% of theory) of 4-bromo-cinnamic acid (4-hydroxypiperidide) of melting point 159-160 ° C. are obtained.



   Example 7: 4-Bromo-cinnamic acid- (4-hydroxypiperidide). A solution of 7.2 g (60 mmol) of thionyl chloride in 20 ml of chloroform is added dropwise to 7.6 g (33 mmol) of 4-bromocinnamic acid and 7.6 g (75 mmol) of 4-hydroxypiperidine in 40 ml of chloroform, whereby the reaction mixture is heated to a low boil and the precipitate partially dissolves. The mixture is stirred for a further 30 minutes, then water is added, the organic phase is separated off and washed with dilute sodium hydroxide solution, dilute hydrochloric acid and water. After drying over sodium sulfate, the chloroform phase is evaporated in vacuo. The residue is recrystallized twice from ethyl acetate.



     Yield: 1.5 g (14% of theory), melting point 159-160 C.



   Example 8: 4-Bromo-cinnamic acid- (4-hydroxypiperidide). While cooling with ice, 1.4 g (0.01 mol) of phosphorus trichloride are added dropwise to a solution of 6.1 g (0.06 mol) of 4-hydroxypiperidine in chloroform and then 6.8 g (0.03 mol) of 4- Bromine cinnamon increases. The mixture is heated to boiling for 5 h and, after cooling, water is added. The chloroform layer is separated off, washed with dilute hydrochloric acid, dilute sodium hydroxide solution and water, dried over sodium sulfate and concentrated in vacuo.



  The residue is boiled with a little petroleum ether. The undissolved product is filtered off in the cold and recrystallized from methanol.



   Yield: 0.4 g (4% of theory), melting point 159-161 C.



   The compounds of general formula I prepared according to the invention can be incorporated into customary pharmaceutical application forms by methods known per se, optionally in combination with other active substances.



   The single dose for adults is 200.00-600.00 mg, preferably 300.00-400.00 mg.



   Daily dose: 400.00-1200.00 mg, preferably 600.00-800.00 mg.

** WARNING ** End of DESC field may overlap beginning of CLMS **.

 

Claims (1)

PATENTANSPRÜCHE : 1. Verfahren zur Herstellung neuer Zimtsäureamide der allgemeinen Formel I : EMI2.3 <Desc/Clms Page number 3> in der R. i ein Brom-oder Jodatom bedeutet, dadurch gekennzeichnet, dass ein Zimtsäurederivat der allgemeinen Formel 11 : EMI3.1 in der Ri wie oben definiert ist und X eine Hydroxylgruppe, eine freie oder durch niedere Alkylreste monooder disubstituierte Aminogruppe oder einen reaktionsfähigen Rest, z. B. ein Halogenatom, eine Alkoxyoder Acyloxygruppe, bedeuten, mit einem Amin der Formel III : EMI3.2 bzw. mit einem reaktionsfähigen Derivat davon umgesetzt wird. PATENT CLAIMS: 1. Process for the preparation of new cinnamic acid amides of the general formula I: EMI2.3 <Desc / Clms Page number 3> in which R. i denotes a bromine or iodine atom, characterized in that a cinnamic acid derivative of the general formula 11: EMI3.1 in which Ri is as defined above and X is a hydroxyl group, an amino group which is free or mono- or disubstituted by lower alkyl radicals, or a reactive radical, e.g. B. a halogen atom, an alkoxy or acyloxy group, with an amine of the formula III: EMI3.2 or is reacted with a reactive derivative thereof. 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. 3. Verfahren nach den Ansprüchen 1 und 2, dadurch gekennzeichnet, dass ein reaktionsfähiges Derivat der FormelII bzw. III ohne Isolierung aus dem Reaktionsgemisch, in dem es gebildet wurde, verwendet wird. 3. Process according to claims 1 and 2, characterized in that a reactive derivative of formula II or III is used without isolation from the reaction mixture in which it was formed.
AT1075668A 1967-12-01 1968-11-05 Process for the production of new cinnamic acid amides AT281822B (en)

Priority Applications (27)

Application Number Priority Date Filing Date Title
AT1075668A AT281822B (en) 1968-11-05 1968-11-05 Process for the production of new cinnamic acid amides
NL6816625A NL6816625A (en) 1967-12-01 1968-11-21
BE724746D BE724746A (en) 1967-12-01 1968-11-29
FR1593868D FR1593868A (en) 1967-12-01 1968-11-29
ES360959A ES360959A1 (en) 1967-12-01 1968-11-30 Procedure for the preparation of new amines of cinamic acid. (Machine-translation by Google Translate, not legally binding)
IL31191A IL31191A (en) 1967-12-01 1968-12-01 N-(halocinnamoyl)-piperidine and morpholine derivatives and their preparation
GB57154/68A GB1190680A (en) 1967-12-01 1968-12-02 Halocinnamoyl Piperidines and Morpholines and Pharmaceutical Compositions Containing Them
IE1470/68A IE32544B1 (en) 1967-12-01 1968-12-02 Halocinnamoyl piperidines and morpholines and pharmaceutical compositions containing them
DE19681814625 DE1814625C (en) 1968-08-22 1968-12-13 Cinnamides
FR183229A FR8274M (en) 1967-12-01 1969-01-24
CH1666972A CH533113A (en) 1967-12-01 1969-10-28 Process for the preparation of new cinnamic acid amides
CH1710572A CH532048A (en) 1967-12-01 1969-10-28 Process for the preparation of new cinnamic acid amides
CH1710672A CH532049A (en) 1967-12-01 1969-10-28 Process for the preparation of new cinnamic acid amides
CH1604469A CH522640A (en) 1967-12-01 1969-10-28 Cinnamic acid amide
CH1667172A CH532046A (en) 1967-12-01 1969-10-28 N-(4-chloro)-cinnamoyl-(4'-hydroxy)-piperid-
CH1710272A CH532047A (en) 1967-12-01 1969-10-28 Process for the preparation of new cinnamic acid amides
CH1710372A CH533114A (en) 1967-12-01 1969-10-28 Process for the preparation of new cinnamic acid amides
CH144372A CH522641A (en) 1968-11-05 1969-10-28 Cinnamic acid amide
ES373169A ES373169A1 (en) 1968-11-05 1969-11-04 Procedure for the preparation of new amines of cinamic acid. (Machine-translation by Google Translate, not legally binding)
ES373187A ES373187A1 (en) 1968-11-05 1969-11-05 Procedure for the preparation of new amines of cinamic acid. (Machine-translation by Google Translate, not legally binding)
ES373190A ES373190A1 (en) 1968-11-05 1969-11-05 Procedure for the preparation of new amines of cinamic acid. (Machine-translation by Google Translate, not legally binding)
BR213945/69A BR6913945D0 (en) 1968-11-05 1969-11-05 PROCESS FOR THE PREPARATION OF NEW CINAMIC ACID STARCHES
SE15196/69A SE352888B (en) 1968-11-05 1969-11-05
US885256A US3590041A (en) 1967-12-01 1969-12-15 Novel halo-substituted cinnamic acid heterocyclic amides
DE19702019344 DE2019344A1 (en) 1967-12-01 1970-04-22 4-chloro-cinnamic acid- (4'-hydroxypiperidide)
BE750846D BE750846R (en) 1967-12-01 1970-05-22 NEW
GB24970/70A GB1291559A (en) 1967-12-01 1970-05-22 N-(4-chlorocinnamoyl)-4-hydroxypiperidine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT1075668A AT281822B (en) 1968-11-05 1968-11-05 Process for the production of new cinnamic acid amides

Publications (1)

Publication Number Publication Date
AT281822B true AT281822B (en) 1970-06-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
AT1075668A AT281822B (en) 1967-12-01 1968-11-05 Process for the production of new cinnamic acid amides

Country Status (1)

Country Link
AT (1) AT281822B (en)

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