CH369132A - Process for the preparation of nipecotinic acid amides - Google Patents

Process for the preparation of nipecotinic acid amides

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Publication number
CH369132A
CH369132A CH6283058A CH6283058A CH369132A CH 369132 A CH369132 A CH 369132A CH 6283058 A CH6283058 A CH 6283058A CH 6283058 A CH6283058 A CH 6283058A CH 369132 A CH369132 A CH 369132A
Authority
CH
Switzerland
Prior art keywords
hexahydropyridine
carboxylic acid
acid amide
methyl
carbo
Prior art date
Application number
CH6283058A
Other languages
German (de)
Original Assignee
Cilag Chemie Aktiengesellschaf
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 Cilag Chemie Aktiengesellschaf filed Critical Cilag Chemie Aktiengesellschaf
Priority to CH6283058A priority Critical patent/CH369132A/en
Publication of CH369132A publication Critical patent/CH369132A/en

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Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D211/00Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings
    • C07D211/04Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom
    • C07D211/06Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having no double bonds between ring members or between ring members and non-ring members
    • C07D211/36Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having no double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D211/60Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals

Description

  

  



  Verfahren zur Herstellung von Nipecotinsäureamiden
Es wurde gefunden, dass Amide heterocyclischer Carbonsäuren der Formel
EMI1.1     
 in welcher Am eine substituierte oder unsubstituierte Aminogruppe und R einen Alkylrest bedeuten, der durch Sauerstoff, Schwefel,   Sous,    NH,   N-Alkyl,    CO-NH,   CO-N-Alkyl,    COO unterbrochen sein kann, sowie deren Säureadditionssalze wertvolle Desinfektionsmittel und Anthelmintica darstellen. Sie hemmen auch das Wachstum von Pilzen.



   Als Reste Am kommen neben der unsubstituierten Aminogruppe   NH2,    vor allem die mono-oder dialkylierte Aminogruppe, die Pyrrolidinogruppe
EMI1.2     
 die Morpholino-oder Piperidinogruppe in Frage, wobei die   Pyrrolidino-bzw.    Morpholino-bzw. Piperidinogruppe auch ein-oder mehrfach alkyliert sein kann.



   Gegenstand des vorliegenden Patentes ist daher ein Verfahren zur Herstellung der   Nipecotinsäure-    amide der Formel   I,    das dadurch gekennzeichnet ist, dass man ein quaternäres Salz eines Pyridin-3-carbonsäureamids der Formel
EMI1.3     
 der katalytischen Hydrierung unterwirft.



   Das erhaltene   Nipecotinsäureamid      kxtm--ge-    wünschtenfalls in ein Säureadditionssalz übergeführt werden.



   Die Hydrierung erfolgt vorteilhaft in einem Lösungsmittel, wie z. B. Methanol oder Äthanol.



   Als Katalysatoren kann man   Raney-Nickel,    Palladium-oder Platin-Katalysatoren verwenden. Mit Platinoxyd lässt sich die Reduktion sehr glatt und mit guter Ausbeute durchführen. Im allgemeinen wird unter Druck und bei gewöhnlicher Temperatur hydriert.



   Zur Salzbildung eignen sich anorganische und organische untoxische Säuren.



   Als anorganische Säuren kommen zur Salzbildung in Frage : Chlorwasserstoffsäure, Bromwasser  stoffsäure,    Schwefelsäure, Phosphorsäuren und   Sulf-    aminsäure. Als organische Säuren kommen in Frage :   Essigäure,    Glycolsäure, Citronensäure, Fumarsäure, Nicotinsäure, Salicylsäure, p-Amino-salicylsäure und andere mehr.



   Beispiel
50 g   3-Carbamyl-l-n-heptyl-pyridinium-bromid    werden in 500 cm3 Athanol mit 0,15 g   Platinoxyd    im Autoklaven bei 20  C unter 100 at. Wasserstoffdruck geschüttelt. Nach 8 Stunden ist die Hydrierung beendet. Der Katalysator wird abfiltriert und das Filtrat im Vakuum verdampft. Der Rückstand wird in Wasser gelöst, mit Kohle filtriert, und mit konz.



  Natronlauge wird die Base gefällt. Diese wird abgesaugt, mit Wasser gewaschen und aus   10e/o, igem      Athanol    umkristallisiert. Man erhält 30 g an 1-n Heptyl-piperidin-3-carbonsäureamid. Die neue Verbindung bildet farblose Kristalle, die bei   99-100     C schmelzen.



   Wie im Beispiel beschrieben, gewinnt man weiter die folgenden Verbindungen : 
Fp. des
Hydro chlorides    oC 1-Methyl-hexahydropyridin-3-carbonsäure-       dimethylamid    178-180   1-Athyl-hexahydropyridin-3-carbonsäure-    dimethylamid   205-206      1-n-Propyl-hexahydropyridin-3-carbonsäure-    dimethylamid 178-179   1-Methyl-hexahydropyridin-3-carbonsäure-       diäthylamid    149-150   1-Athyl-hexahydropyridin-3-carbonsäure-       diäthylamid    80-82   I-n-Propyl-hexahydropyridin-3-carbonsäure-       diäthylamid    145-147   1-Methyl-hexahydropyridin-3-carbonsäure-       di-n-propylamid    113-115  <RTI  

   ID=2.14> 1-AthylLhexahydropyridin-3-carbonsäure-       di-n-propylamid    110-111   1-n-Propyl-hexahydropyridin-3-carbonsäure-    di-n-propylamid 116-117
Fp. der
Base      C l-n-Butyl-hexahydropyridin-3-carbonsäure-    amid 78-81   l-n-Pentyl-hexahydropyridin-3-carbonsäure-    amid 92-94   1-i-Pentyl-hexahydropyridin-3-carbonsäure-    amid 113-115   1-n-Hexyl-hexahydropyridin-3-carbonsäure-    amid 99-101 l-n-Octyl-hexahydropyridin-3-carbonsäure amid   95-97    l-n-Nonyl-hexahydropyridin-3-carbonsäure amid 96-97   l-n-Decyl-hexahydropyridin-3-carbonsäure-    amid 98-99   1-n-Undecyl-hexahydropyridin-3-carbon-       säure-amid    100-101  <RTI  

   ID=2.25> 1-n-DodecylLhexahydropyridin-3-carbon-       säure-amid    100-101   l-n-Tetradecyl-hexahydropyridin-3-carbon-    saure-ami 96-98   1-n-Hexadecyl-hexahydropyridin-3-carbon-       säure-amid    102-103



  



  Process for the preparation of nipecotinic acid amides
It has been found that amides of heterocyclic carboxylic acids of the formula
EMI1.1
 in which Am is a substituted or unsubstituted amino group and R is an alkyl radical which can be interrupted by oxygen, sulfur, Sous, NH, N-alkyl, CO-NH, CO-N-alkyl, COO, and their acid addition salts are valuable disinfectants and anthelmintics represent. They also inhibit the growth of fungi.



   In addition to the unsubstituted amino group NH2, especially the mono- or dialkylated amino group, the pyrrolidino group are used as radicals Am
EMI1.2
 the morpholino or piperidino group in question, the pyrrolidino or. Morpholino or. Piperidino group can also be alkylated one or more times.



   The subject of the present patent is therefore a process for the preparation of the nipecotinic acid amides of the formula I, which is characterized in that a quaternary salt of a pyridine-3-carboxamide of the formula I is used
EMI1.3
 subjected to catalytic hydrogenation.



   The nipecotinic acid amide obtained kxtm - if desired, can be converted into an acid addition salt.



   The hydrogenation is advantageously carried out in a solvent, such as. B. methanol or ethanol.



   Raney nickel, palladium or platinum catalysts can be used as catalysts. With platinum oxide, the reduction can be carried out very smoothly and with good yield. In general, hydrogenation is carried out under pressure and at ordinary temperature.



   Inorganic and organic non-toxic acids are suitable for salt formation.



   The following inorganic acids are suitable for salt formation: hydrochloric acid, hydrobromic acid, sulfuric acid, phosphoric acids and sulphamic acid. The following organic acids come into question: acetic acid, glycolic acid, citric acid, fumaric acid, nicotinic acid, salicylic acid, p-amino-salicylic acid and others.



   example
50 g of 3-carbamyl-1-n-heptyl-pyridinium bromide are shaken in 500 cm3 of ethanol with 0.15 g of platinum oxide in an autoclave at 20 ° C. under 100 atm. Hydrogen pressure. The hydrogenation has ended after 8 hours. The catalyst is filtered off and the filtrate is evaporated in vacuo. The residue is dissolved in water, filtered with charcoal, and with conc.



  Caustic soda is used to precipitate the base. This is filtered off with suction, washed with water and recrystallized from 10e / o strength ethanol. 30 g of 1-n heptyl-piperidine-3-carboxamide are obtained. The new compound forms colorless crystals that melt at 99-100 C.



   As described in the example, the following connections are obtained:
Fp. Des
Hydro chlorides oC 1-methyl-hexahydropyridine-3-carboxylic acid dimethylamide 178-180 1-ethyl-hexahydropyridine-3-carboxylic acid dimethylamide 205-206 1-n-propyl-hexahydropyridine-3-carboxylic acid dimethylamide 178-179 1-methyl -hexahydropyridine-3-carboxylic acid diethylamide 149-150 1-ethyl-hexahydropyridine-3-carboxylic acid diethylamide 80-82 In-propyl-hexahydropyridine-3-carboxylic acid diethylamide 145-147 1-methyl-hexahydropyridine-3-carboxylic acid di -n-propylamide 113-115 <RTI

   ID = 2.14> 1-EthylLhexahydropyridine-3-carboxylic acid-di-n-propylamide 110-111 1-n-Propyl-hexahydropyridine-3-carboxylic acid-di-n-propylamide 116-117
Fp. The
Base C In-butyl-hexahydropyridine-3-carboxylic acid amide 78-81 In-pentyl-hexahydropyridine-3-carboxylic acid amide 92-94 1-i-pentyl-hexahydropyridine-3-carboxylic acid amide 113-115 1-n- Hexyl-hexahydropyridine-3-carboxylic acid amide 99-101 In-octyl-hexahydropyridine-3-carboxylic acid amide 95-97 In-nonyl-hexahydropyridine-3-carboxylic acid amide 96-97 In-decyl-hexahydropyridine-3-carboxylic acid amide 98 -99 1-n-Undecyl-hexahydropyridine-3-carboxylic acid amide 100-101 <RTI

   ID = 2.25> 1-n-dodecyl-hexahydropyridine-3-carboxylic acid amide 100-101 ln-tetradecyl-hexahydropyridine-3-carboxylic acid ami 96-98 1-n-hexadecyl-hexahydropyridine-3-carboxylic acid amid 102-103

 

Claims (1)

Fp. der Base oC 1-n-Octadecyl-hexahydropyridin-3-carbon- säure-amid 109-111 1- [Carbo-(n-hexoxy)-methyl]-hexahydro- pyridin-3-carbonsäure-amid 49-50 1- [Carbo- (n-decoxy)-methyl]-hexahydro- pyridin-3-carbonsäure-amid 56-57 1- [Carbo- (n-dodecoxy)-methyl]-hexahydro- pyridin-3-carbonsäure-amid 65-67 1- [Carbo-(n-hexadecoxy)-methyl]-hexa- hydropyridin-3-carbonsäure-amid 62-63 1- [Carbo-(n-dodecamido)-methyl]-hexa- hydropyridin-3-carbonsäure-amid 109-110 PATENTANSPRUCH Verfahren zur Herstellung von Nipecotinsäure- amiden der Formel EMI2.1 in welcher Am eine substituierte oder unsubstituierte Aminogruppe und R einen Alkylrest bedeuten, der durch Sauerstoff, Schwefel, Fp. The Base oC 1-n-octadecyl-hexahydropyridine-3-carboxylic acid amide 109-111 1- [Carbo- (n-hexoxy) methyl] -hexahydropyridine-3-carboxylic acid amide 49-50 1- [Carbo - (n-decoxy) methyl] hexahydropyridine-3-carboxylic acid amide 56-57 1- [Carbo- (n-dodecoxy) methyl] hexahydropyridine-3-carboxylic acid amide 65-67 1- [Carbo- (n-hexadecoxy) methyl] hexahydropyridine-3-carboxylic acid amide 62-63 1- [Carbo- (n-dodecamido) methyl] hexahydropyridine-3-carboxylic acid amide 109-110 PATENT CLAIM Process for the preparation of nipecotinic acid amides of the formula EMI2.1 in which Am is a substituted or unsubstituted amino group and R is an alkyl radical which is replaced by oxygen, sulfur, SO2, NH, N-Alkyl, CO-NH, CO-N-Alkyl, COO unterbrochen sein kann, dadurch gekennzeichnet, dass man ein quater näres Salz eines Pyridin-3-carbonsäureamids der Formel EMI2.2 der katalytischen Hydrierung unterwirft. SO2, NH, N-alkyl, CO-NH, CO-N-alkyl, COO can be interrupted, characterized in that a quaternary salt of a pyridine-3-carboxamide of the formula EMI2.2 subjected to catalytic hydrogenation. UNTERANSPRUCH Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man die erhaltenen Nipecotinsäure- amide in ihre Säureadditionssalze überführt. UNDER CLAIM Process according to claim, characterized in that the nipecotinic acid amides obtained are converted into their acid addition salts.
CH6283058A 1958-08-12 1958-08-12 Process for the preparation of nipecotinic acid amides CH369132A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CH6283058A CH369132A (en) 1958-08-12 1958-08-12 Process for the preparation of nipecotinic acid amides

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH6283058A CH369132A (en) 1958-08-12 1958-08-12 Process for the preparation of nipecotinic acid amides

Publications (1)

Publication Number Publication Date
CH369132A true CH369132A (en) 1963-05-15

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2085726A1 (en) * 1970-03-20 1971-12-31 Nelson Res & Dev
EP0219934A1 (en) * 1985-08-10 1987-04-29 Beecham Group Plc Process for the preparation of aryl-piperidine esters

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2085726A1 (en) * 1970-03-20 1971-12-31 Nelson Res & Dev
EP0219934A1 (en) * 1985-08-10 1987-04-29 Beecham Group Plc Process for the preparation of aryl-piperidine esters
US4861893A (en) * 1985-08-10 1989-08-29 Beecham Group Plc. Chemical process

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