CH309919A - Process for the preparation of a new cyclohexano-hydronaphthalene compound. - Google Patents

Process for the preparation of a new cyclohexano-hydronaphthalene compound.

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Publication number
CH309919A
CH309919A CH309919DA CH309919A CH 309919 A CH309919 A CH 309919A CH 309919D A CH309919D A CH 309919DA CH 309919 A CH309919 A CH 309919A
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CH
Switzerland
Prior art keywords
parts
new
weight
cyclohexano
hydronaphthalene
Prior art date
Application number
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German (de)
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Aktiengesellschaft Ciba
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Ciba Geigy
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Publication date
Application filed by Ciba Geigy filed Critical Ciba Geigy
Publication of CH309919A publication Critical patent/CH309919A/en

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    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C46/00Preparation of quinones
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/61Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups
    • C07C45/67Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton
    • C07C45/68Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton by increase in the number of carbon atoms
    • C07C45/69Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton by increase in the number of carbon atoms by addition to carbon-to-carbon double or triple bonds
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2601/00Systems containing only non-condensed rings
    • C07C2601/12Systems containing only non-condensed rings with a six-membered ring
    • C07C2601/16Systems containing only non-condensed rings with a six-membered ring the ring being unsaturated
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2603/00Systems containing at least three condensed rings
    • C07C2603/02Ortho- or ortho- and peri-condensed systems
    • C07C2603/04Ortho- or ortho- and peri-condensed systems containing three rings
    • C07C2603/22Ortho- or ortho- and peri-condensed systems containing three rings containing only six-membered rings
    • C07C2603/26Phenanthrenes; Hydrogenated phenanthrenes

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

  



  Verfahren zur Herstellung einer neuen   Cyclohexano-hydronaphthalinverbindung.   



   Gegenstand des vorliegenden Patentes ist ein Verfahren zur Herstellung einer neuen Cyclohexano-hydronaphthalinverbindung, wel  clies dadureh gekennzeiehnet    ist, dass man 2-Methyl-3-äthenyl-cyclohex-2-en-on mit 2-Methyl-cyclohexan-1,3-dion umsetzt.



     I) as Verfahrensprodlkt,    das   #8,14-8,11-Di-    methyl-1,7-diketo-12-oxy-dodecahydro-phenantliren der Formel
EMI1.1     
 schmilzt bei   171 .    Es ist neu und soll als Zwischenprodukt zur Herstellung von Heilmitteln Verwendung finden.



   Die   verfahrensgemässe    Reaktion   wird vor-      teillai't    in Gegenwart von Kondensationsmit   teln, insbesondere alkalischen, durehgefiihrt.   



  So können Hydroxyde oder Alkoholate der   Alkali-oder Erdalkalimetalle,    beispielsweise    des Natriums, Kaliums, Lithiums oder Cal-    eiums, oder stärkere organisehe Basen, wie   sel ; uncläre    oder tertiäre Amine, z. B.   Triäthyl-    amin oder Piperidin, in Gegenwart von Säuren, wie Eisessig, oder quaternäre Ammoniumhydroxyde, z. B.   Trimethyl-benzyl-ammo-    niumhydroxyd, verwendet werden. Vorzugsweise arbeitet man in tert. Butanol als Lö  sungsmittel und    in Gegenwart von   Diäthyl-    amin als Kondensationsmittel.



   Das als   Ausgangsstoff verwendete 2-Methyl      3-äthenyl-eyelohex-2-en-on    ist neu. Es kann zum Beispiel erhalten werden, wenn man ein   Monoenolderivat    von   2-Methyl-eyelohexan-1,    3dion, insbesondere einen   Monoenoläther,    mit Acetylen umsetzt, im erhaltenen   Äthinylcarbi-      nol Wasser    abspaltet und die Dreifaehbindung zur Doppelbindung reduziert.



   Beisptel :
17, 0 Gewiehtsteile   2-Methyl-3-äthenyl-cyclo-    hexen- (2)-on, 17, 0 Gewichtsteile   2-Methyl-    cyclohexan-dion-(1, 3), 10 Gewichtsteile Di äthylamin, 30   Volumteile    absolutes tertiäres Butanol und 25 Volumteile absolutes Benzol werden im geschlossenen Rohr 110 Stunden auf   105--115     erhitzt. Nach dem Erkalten entfernt man das Lösungsmittel im Vakuum, nimmt den   Rückstand    in Äther auf und wäscht die ätherische Lösung mit gesättigter Natriumbicarbonatlosung, 2n-Salzsäure und Wasser.

   Nach dem Trocknen des Äthers und Entfernung der fliichtigen Anteile im Vakuum werden 22 Gewichtsteile eines teilweise kristallinen Produktes erhalten, aus dem sich durch   Kristallisation aus Äther bei-10       1. 3,    7 Gewichtsteile   #8,14-8,11-Dimethyl-1,7-di-      keto-12-oxy-dodecahydro-phenanthren    der Formel 
EMI2.1     
 gewinnen lassen. Das mehrmals aus einem   Aceton-Hexan-Gemiseh      umkristallisierte    Pro  dukt    sehmilzt bei   171 .   



   Das als Ausgangsstoff verwendete 2-Methyl   3-äthenyl-eyelohexen-(2)-on lässt sieh folgen-    dermassen herstellen :
20   Gewiehtsteile      2-Methyl-eyelohexan-dion-    (1,   3)    werden in einem Gemisch aus 120 Vo  lumteilen    Benzol und 30 Volumteilen Isobutanol unter Zusatz von 0, 5 Gewichtsteilen p-Toluolsulfonsäure 14 Stunden unter Rückfluss gekocht ; das bei der Umsetzung entstehende Wasser wird dabei mit Hilfe eines Wasserabscheiders fortlaufend entfernt. Naeh dem Erkalten nimmt man das Reaktionsgemisch in Äther (oder Benzol) auf, entfernt den   Kata-      lysator    mit gesättigter   Natriumbiearbonat-    lösung und wäscht die Lösung mit Wasser neutral.

   Naeh dem Abdampfen des   Lösungs-    mittels werden bei der Destillation 27, 6 Ge   wiehtsteile 2-Alethyl-3-isobutoxy-eyelohexen-    (2)-on vom   Kp.      Q 1    = 100-106  erhalten, das zur   Reinigtmg    noehmals destilliert wird.



   116 Gewichtsteile dieses Enoläthers (gelost in 200 Volumteilen absolutem Äther) werden innerhalb einer Stunde bei etwa   50-Linter    Einleiten von Acetylen und gleichzeitigem ener  gischem    Rühren zu einer Suspension von Li  thiumacetylenid    in 700 Volumteilen absolutem Äther (hergestellt aus 6, 7 Gewichtsteilen Lithium und übersehüssigem, aeetonfreiem Acetylen in 500 Volumteilen wasserfreiem Ammoniak   bei-70    bis   0 )    zugetropft. Nachdem man weitere 10 Stunden unter Rühren bei 5-20  einen schwachen Aeetylenstrom   durehgeleitet    hat, kocht man das Reaktionsgemisch noch 3 Stunden unter Rückfluss.



  Hierauf setzt man unter Eiskühlung 200 Vo  lumteile    Wasser zu und lässt innerhalb einer halben Stunde bei   5-15     unter guter Durchmischung der beiden Schichten   300      Volum-    teile 70%ige Schwefelsäure   zutropfen. Naeh    einer weiteren Stunde wird die wässerige Schicht abgetrennt und die ätherische Lösung unter Eiskühlung mit   2n-Sodalösung und      Wasser gewaschen.

   Nacli Entfernung    des Lo  sungsmittels    werden   dureh    Destillation im    Hoehvakuum (Iip. o l = 58-62 ) 64 Gewichts-    teile 2-Methyl-3-äthinyl-cyclohexen-(2)-on der Formel
EMI2.2     
 erhalten, das bereits während der Destillation sofort kristallisiert ; F. =40-42 ; 2,   4-Dinitro-      phenylhydrazon F. = 197     (aus Essigester).



     24    Gewichtsteile des   ithinylketons    werden in 400 Volumteilen absolutem Hexan gelost, zur   Entfernung von geringen Mengen Poly-    merisat dureil eine Säule von 6   Gewiehtstei-    len Aluminiumoxyd   (Aktivität II, Broek-    mann) filtriert und unter Zusatz von 2 Volumteilen Pyridin und 2, 5 Gewiehtsteilen Pal  ladium-Blei-Katalysator hydriert.    Die sehr rasch verlaufende Hydrierung wird naeh Ver  branch    von 4200 Volumteilen Wasserstoff unterbrochen, die Lösung vom   Katalvsator    abfiltriert, das Lösungsmittel im Vakuum entfernt und der Rückstand im Hochvakuum destilliert.

   Dabei werden   20,    7 Gewiehtsteile   2-Methyl-3-äthenyl-eyelohexen- (2)-on    der Formel
EMI2.3     
 vom Kp.0,4 = 70-80  erhalten, das durch noehmalige Destillation weiter gereinigt werden kann.   2,    4-Dinitro-phenylhydrazon   F.      =179    bis 181  (aus Essigester).



  



  Process for the preparation of a new cyclohexano-hydronaphthalene compound.



   The subject of the present patent is a process for the preparation of a new cyclohexano-hydronaphthalene compound, which is marked because 2-methyl-3-ethenyl-cyclohex-2-en-one is mixed with 2-methyl-cyclohexan-1,3-dione implements.



     I) as a process product, the # 8,14-8,11-dimethyl-1,7-diketo-12-oxy-dodecahydro-phenanthene of the formula
EMI1.1
 melts at 171. It is new and is intended to be used as an intermediate in the manufacture of medicinal products.



   The reaction according to the process is advantageously carried out in the presence of condensation agents, in particular alkaline ones.



  Thus, hydroxides or alcoholates of the alkali or alkaline earth metals, for example sodium, potassium, lithium or calcium, or stronger organic bases such as sel; unclear or tertiary amines, e.g. B. triethylamine or piperidine, in the presence of acids such as glacial acetic acid, or quaternary ammonium hydroxides, eg. B. trimethylbenzylammoniumhydroxyd, can be used. Preferably one works in tert. Butanol as a solvent and in the presence of diethylamine as a condensing agent.



   The 2-methyl 3-äthenyl-eyelohex-2-en-one used as the starting material is new. It can be obtained, for example, if a monoenol derivative of 2-methyl-eyelohexane-1,3dione, in particular a monoenol ether, is reacted with acetylene, water is split off in the ethynyl carbinol obtained and the triple bond is reduced to a double bond.



   Example:
17.0 parts by weight of 2-methyl-3-ethhenyl-cyclohexen (2) -one, 17.0 parts by weight of 2-methylcyclohexanedione- (1, 3), 10 parts by weight of diethylamine, 30 parts by volume of absolute tertiary butanol and 25 parts by volume of absolute benzene are heated to 105-115 for 110 hours in a closed tube. After cooling, the solvent is removed in vacuo, the residue is taken up in ether and the ethereal solution is washed with saturated sodium bicarbonate solution, 2N hydrochloric acid and water.

   After drying the ether and removing the volatile fractions in vacuo, 22 parts by weight of a partially crystalline product are obtained, from which crystallization from ether at -10.1.3.7 parts by weight # 8,14-8,11-dimethyl-1, 7-di-keto-12-oxy-dodecahydro-phenanthrene of the formula
EMI2.1
 to let win. The product, recrystallized several times from an acetone-hexane mixture, sehmilzt at 171.



   The 2-methyl 3-äthenyl-eyelohexen- (2) -one used as the starting material can be produced as follows:
20 parts by weight of 2-methyl-eyelohexan-dione (1, 3) are boiled under reflux for 14 hours in a mixture of 120 parts by volume of benzene and 30 parts by volume of isobutanol with the addition of 0.5 parts by weight of p-toluenesulfonic acid; the water formed during the reaction is continuously removed with the aid of a water separator. After cooling, the reaction mixture is taken up in ether (or benzene), the catalyst is removed with saturated sodium carbonate solution and the solution is washed neutral with water.

   After evaporation of the solvent, 27.6 parts by weight of 2-alethyl-3-isobutoxy-eyelohexen- (2) -one with a b.p. Q 1 = 100-106 are obtained in the distillation, which is still distilled for cleaning.



   116 parts by weight of this enol ether (dissolved in 200 parts by volume of absolute ether) are converted into a suspension of lithium acetylenide in 700 parts by volume of absolute ether (made from 6.7 parts by weight of lithium and excess) within an hour with about 50 linters introducing acetylene and simultaneous energetic stirring , aeeton-free acetylene in 500 parts by volume of anhydrous ammonia at -70 to 0) was added dropwise. After a gentle stream of ethylene has been passed through for a further 10 hours with stirring at 5-20, the reaction mixture is refluxed for a further 3 hours.



  200 parts by volume of water are then added while cooling with ice and 300 parts by volume of 70% sulfuric acid are added dropwise over half an hour at 5-15 with thorough mixing of the two layers. After a further hour, the aqueous layer is separated off and the ethereal solution is washed with 2N soda solution and water while cooling with ice.

   After removal of the solvent, 64 parts by weight of 2-methyl-3-ethinyl-cyclohexen-2-one of the formula are obtained by distillation under high vacuum (Iip. O l = 58-62)
EMI2.2
 obtained that crystallizes immediately during the distillation; F. = 40-42; 2,4-Dinitrophenylhydrazone F. = 197 (from ethyl acetate).



     24 parts by weight of the ithinyl ketone are dissolved in 400 parts by volume of absolute hexane, a column of 6 parts by weight of aluminum oxide (activity II, Broekmann) is filtered to remove small amounts of polymer and 2, 5 parts by weight are added Hydrogenated palladium-lead catalyst. The very rapid hydrogenation is interrupted after the branch of 4200 parts by volume of hydrogen, the solution is filtered off from the catalyst, the solvent is removed in vacuo and the residue is distilled in a high vacuum.

   Thereby 20.7 parts by weight of 2-methyl-3-äthenyl-eyelohexen- (2) -one of the formula
EMI2.3
 with a boiling point of 0.4 = 70-80, which can be further purified by additional distillation. 2,4-Dinitro-phenylhydrazone F. = 179 to 181 (from ethyl acetate).

 

Claims (1)

PATENTANSPRUCH : Verfahren zur Herstellung einer Cyclo hexano-hydronaphthalinverbindung, dadurch gekennzeichnet, dass man 2-} tethyl-3-äthenyl- cyclohex-2-en-on mit 2-Methyl-3-cyclohexan1, 3-dion umsetzt. PATENT CLAIM: Process for the preparation of a cyclohexano-hydronaphthalene compound, characterized in that 2-} methyl-3-ethenyl-cyclohex-2-en-one is reacted with 2-methyl-3-cyclohexan1, 3-dione. Das Verfahrensprodukt, das d 8,14-8,11-Dimethyl-1,7-diketo-12-oxy-dodecahydro-phenanthren der Formel EMI3.1 ist neu und schmilzt bei 171 . The process product, the d 8,14-8,11-dimethyl-1,7-diketo-12-oxy-dodecahydro-phenanthrene of the formula EMI3.1 is new and melts at 171. UNTERANSPRUCH : Verfahren nach Patentanspruch, dadureh gekennzeichnet, dass man die Umsetzung in Gegenwart eines basischen Kondensationsmittels durchführt. SUBClaim: Process according to patent claim, characterized in that the reaction is carried out in the presence of a basic condensing agent.
CH309919D 1952-08-29 1952-08-29 Process for the preparation of a new cyclohexano-hydronaphthalene compound. CH309919A (en)

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CH309919T 1952-08-29

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