CH98713A - Process for the preparation of a quinoline series amino alcohol. - Google Patents

Process for the preparation of a quinoline series amino alcohol.

Info

Publication number
CH98713A
CH98713A CH98713DA CH98713A CH 98713 A CH98713 A CH 98713A CH 98713D A CH98713D A CH 98713DA CH 98713 A CH98713 A CH 98713A
Authority
CH
Switzerland
Prior art keywords
ethoxyquinolyl
alcohol
soluble
methyl
phenyl
Prior art date
Application number
Other languages
German (de)
Inventor
Gesellschaft Fuer Chemis Basel
Original Assignee
Chem Ind Basel
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 Chem Ind Basel filed Critical Chem Ind Basel
Publication of CH98713A publication Critical patent/CH98713A/en

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Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D215/00Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems
    • C07D215/02Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen atoms or carbon atoms directly attached to the ring nitrogen atom
    • C07D215/16Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen atoms or carbon atoms directly attached to the ring nitrogen atom 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
    • C07D215/20Oxygen atoms

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Hydrogenated Pyridines (AREA)

Description

  

  Verfahren zur Darstellung eines     Aminoalkohols    der     Chinolinreihe.       Es wurde gefunden, dass man zu einem       Aminoalkohol    der     2-Phenylchinolirireihe    ge  langen kann, indem man     2-Phenyl-6-ä.thoxy-          chinolyl-4-methylketon    an der     Methylgruppe          halogeniert,

      das entstehende     2-Phenyl-6-äth-          oxychinolyl-4-halogenmethylketon    durch Um-    setzeng mit     Piperidin    in das     2-Phenyl-6-äth-          oxychinolyl-4-piperididoäthanon    überführt und  dieses zu     2-Phenyl-6-äthoxy        chinolyl-4-piper-          ididoäthanol    reduziert.  



  Das     2-Phenyl-6-äthoxychinolyl-4-piper-          ididoäthanol    von der Formel  
EMI0001.0019     
    bildet farblose Kristalle vom     Smp.   <B>1100.</B> Die  Base ist spielend löslich in Benzol und Me  thylalkohol, mässig in Äther und Alkohol,  schwer löslich in kaltem     Petroläther.    Sie  gibt wie das Chinin die     Thalleiochinreaktion.     



  Das     Dichlorhydrat    ist gelb und schmilzt  bei 218  . Es ist löslich in Wasser und zeigt  hierbei blaue Fluoreszenz, es löst sich auch  in     @    warmem     Methyl-    oder Äthylalkohol.  



  Die     neue.Verbindung    soll zu therapeu  tischen Zwecken Verwendung finden.    <I>Beispiel:</I>       2-Plaenyl-6-äthoxychinolyd-        4-brommethylketon:     7,4 Teile Bromhydrat des im Zusatz  patent Nr. 98482 beschriebenen     2-Phenyl-6-          äthoxychir)olyl-4-methylketons    werden in hei  ssem Eisessig gelöst und mit 3,2 Teilen Brom,  gelöst in etwas Eisessig, versetzt. Beim Ab  kühlen kristallisiert das     2-Phenyl-6-äthoxy-          chinolyl-4-brommethylketorrbromhydrat    aus.

         2-Pheytyl-ti-äthoxychinolyl-4-piperididöäthanon:     3,7 Teile 2     Phenyl-6-äthoxychinolyl-4-          bromrnethylketon    (1     Mol.)    werden in benzo-           lischer    Lösung mit 1,7 Teilen     Piperidin     (2     Mol.),    gelöst in Wasser, unter Kühlung  kräftig geschüttelt.

   Nach 2 Stunden wird  die     benzolische    Lösung, welche die     Amino-          ketonbase    enthält, abgetrennt, getrocknet und  das Benzol bei möglichst niedriger     Ternpe-          ratur    im Vakuum     abdestilliert.    Die freie  Base bleibt als gelbes Pulver zurück. Sie  schmilzt unscharf bei<B>82'.</B>  



  Das     Monochlorhydrat    des     2-Pl.enyl-6-äth-          oxychiriolyl-4-piperididoäthanons    ist gelb und  schmilzt gegen<B>2300</B> unter Zersetzung. Das       Monobromhydrat    schmilzt bei 235-240   ebenfalls unter Zersetzung. Beide Salze sind  schwer löslich irr Wasser und Alkohol.  



       2-Pltertyl-6-athoxychirtolyd-4        piperidido(ithartod:     45,5 Teile     2-Pbenyl-6-äthoxychinolyl-4-          piperididoät.harioribromhydrat    werden in 200  Teilen     Ameisen#äure    unter Zusatz von 200  Teilen Alkohol gelöst und mit 10 Teilen  Zinkstaub reduziert. Hierauf wird mit     Wasser     verdünnt, vom     Ungelösten        abfiltriert    und aus  dein Filtrat die Base mit     überschüssigem          Ammoniak    gefällt.

   Durch     Ausäthern,    Trock  nen mit     Kaliumkarbonat    und Verdunsten  des Äthers erhält man das     2-Phenyl-6-äth-          oxychinolyl-4-piperididoätliaiiol    nach Kristalli  sation aus     Petroläther    völlig rein.  



  Das Zink kann     durch    andere     l11:etalle,     z. B. Eisen ersetzt werden. Die     Reduktion     kann auch durch Wasserstoff bei Gegenwart  von     Kontaktmetaller.    wie Platin, Palladium;       Nickel        etc.    bewirkt werden Ferner lässt sich  die     Reduktion    in alkoholisch alkalischer Lö-         sung    mit     Aluminium    oder Zink ausführen.

    Schliesslich kann die Isolierung des     Amino-          ketons    umgangen werden, indem die     benzo-          lisehe    Lösung der aus dem     Bromketon    er  haltenen     Aminoketonbase,    z. B. mit Ameisen  säure ausgeschüttelt und mit Zink reduziert  wird.



  Process for the preparation of a quinoline series amino alcohol. It has been found that an amino alcohol of the 2-phenylquinolireihehe can be obtained by halogenating 2-phenyl-6-Ä.thoxyquinolyl-4-methyl ketone on the methyl group,

      the resulting 2-phenyl-6-ethoxyquinolyl-4-halomethyl ketone is converted into 2-phenyl-6-ethoxyquinolyl-4-piperididoethanone by reaction with piperidine, and this is converted to 2-phenyl-6-ethoxyquinolyl-4 -piper- reduced ididoethanol.



  The 2-phenyl-6-ethoxyquinolyl-4-piper- ididoethanol of the formula
EMI0001.0019
    forms colorless crystals with a melting point of <B> 1100. </B> The base is easily soluble in benzene and methyl alcohol, moderately in ether and alcohol, hardly soluble in cold petroleum ether. Like quinine, it gives the thalleiochine reaction.



  The dichlorohydrate is yellow and melts at 218. It is soluble in water and shows blue fluorescence, it also dissolves in @ warm methyl or ethyl alcohol.



  The new connection is intended to be used for therapeutic purposes. <I> Example: </I> 2-plaenyl-6-ethoxyquinolyd-4-bromomethyl ketone: 7.4 parts of bromohydrate of the 2-phenyl-6-ethoxychir) olyl-4-methyl ketone described in the additional patent no. 98482 are in hot Dissolved glacial acetic acid, and 3.2 parts of bromine dissolved in a little glacial acetic acid are added. On cooling from the 2-phenyl-6-ethoxy-quinolyl-4-bromomethylketorbromohydrate crystallizes out.

         2-Pheytyl-ti-ethoxyquinolyl-4-piperididoethanone: 3.7 parts of 2-phenyl-6-ethoxyquinolyl-4-bromomethyl ketone (1 mol.) Are dissolved in benzol solution with 1.7 parts of piperidine (2 mol.) in water, shaken vigorously while cooling.

   After 2 hours, the benzene solution which contains the amino ketone base is separated off and dried, and the benzene is distilled off in vacuo at the lowest possible temperature. The free base remains as a yellow powder. It melts out of focus at <B> 82 '. </B>



  The monochlorohydrate of 2-pl.enyl-6-ethoxychiriolyl-4-piperididoethanone is yellow and melts towards <B> 2300 </B> with decomposition. The monobromohydrate also melts at 235-240 with decomposition. Both salts are sparingly soluble in water and alcohol.



       2-Ptertyl-6-athoxychirtolyd-4 piperidido (ithartod: 45.5 parts of 2-pbenyl-6-ethoxyquinolyl-4-piperididoät.harioribromhydrat are dissolved in 200 parts of formic acid with the addition of 200 parts of alcohol and reduced with 10 parts of zinc dust It is then diluted with water, the undissolved material is filtered off, and the base is precipitated from the filtrate with excess ammonia.

   2-Phenyl-6-ethoxyquinolyl-4-piperididoethylolyl-4-piperididoethiole is obtained completely pure after crystallization from petroleum ether by etherifying, drying with potassium carbonate and evaporating the ether.



  The zinc can be replaced by other 11: metals, e.g. B. iron to be replaced. The reduction can also be carried out by hydrogen in the presence of contact metals. such as platinum, palladium; Nickel etc. can also be effected. Furthermore, the reduction can be carried out in an alcoholic alkaline solution with aluminum or zinc.

    Finally, the isolation of the amino ketone can be circumvented by adding the benzolisehe solution of the amino ketone base obtained from the bromoketone, e.g. B. shaken out with formic acid and reduced with zinc.

 

Claims (1)

I'ATRNTANSPRUCH Verfahren zur Darstellung eines Amino- alkoliols der Chinolinreihe, dadurch gekenn zeichnet, dass man 2-Plieriyl-6-äthoxychinolyl- 4-methylketon an der Methylgruppe haloge- niert, I'ATRNTANSPRUCH Process for the preparation of an amino alcohol of the quinoline series, characterized in that 2-Plieriyl-6-ethoxyquinolyl-4-methyl ketone is halogenated on the methyl group, das entstehende 2-Phenyl-6-äthoxy- chiriolyl-4-Iialogeriinethylketori durch Um setzung finit Piperidin in das 2-Phenyl-6-äth- oxychiriolyl-4-piperididoäthanori überführt und dieses zu 2-Pheriyl-6-äthoxychinolyl-4-pipei - ididoäthanol reduziert. the resulting 2-phenyl-6-ethoxy-chiriolyl-4-Iialogeriinethylketori converted into the 2-phenyl-6-ethoxychiriolyl-4-piperididoethanori by conversion finite piperidine and this converted to 2-pheriyl-6-ethoxyquinolyl-4-pipei - reduced ididoethanol. Das 2-Phercyl-6-äthoxychinolyl-4-piper- ididoäthanol bildet farblose Kristalle vom Smp. <B>110'.</B> Die Base ist spielend löslich in Benzol und Methylalkohol, mässig in Äther und Alkohol, schwer löslich in kaltem Pe- troläther. Sie gibt wie das Chinin die Thal- leiochinreaktion. Das Dichlorhydrat ist gelb und schmilzt bei<B>218".</B> Es ist löslich in Wasser und zeigt hierbei blaue Fluoreszenz; 2-Phercyl-6-ethoxyquinolyl-4-piperididoethanol forms colorless crystals with a melting point of <B> 110 '. </B> The base is easily soluble in benzene and methyl alcohol, moderately soluble in ether and alcohol, hardly soluble in cold Petroleum ether. Like quinine, it gives the thaleiochine reaction. The dichlorohydrate is yellow and melts at <B> 218 ". </B> It is soluble in water and shows blue fluorescence; es löst sich auch in warmem Methyl- oder Äthylalkohol. Die neue Verbindung soll zu therapeu tischen Zwecken Verwendung finden. it also dissolves in warm methyl or ethyl alcohol. The new connection is intended to be used for therapeutic purposes.
CH98713D 1920-08-04 1922-03-08 Process for the preparation of a quinoline series amino alcohol. CH98713A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH92609T 1920-08-04
CH92001T 1920-08-04
CH98713T 1922-03-08

Publications (1)

Publication Number Publication Date
CH98713A true CH98713A (en) 1923-04-16

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Family Applications (1)

Application Number Title Priority Date Filing Date
CH98713D CH98713A (en) 1920-08-04 1922-03-08 Process for the preparation of a quinoline series amino alcohol.

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CH (1) CH98713A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2492487A (en) * 1946-06-25 1949-12-27 Joseph B Koepfli Quinoline derivative having antimalarial properties
US2541342A (en) * 1948-08-27 1951-02-13 Searle & Co Basic 9, 10-dihydro-9-anthryl carbinols and salts thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2492487A (en) * 1946-06-25 1949-12-27 Joseph B Koepfli Quinoline derivative having antimalarial properties
US2541342A (en) * 1948-08-27 1951-02-13 Searle & Co Basic 9, 10-dihydro-9-anthryl carbinols and salts thereof

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