CH378326A - Process for the preparation of new p-benzoquinones - Google Patents

Process for the preparation of new p-benzoquinones

Info

Publication number
CH378326A
CH378326A CH7585959A CH7585959A CH378326A CH 378326 A CH378326 A CH 378326A CH 7585959 A CH7585959 A CH 7585959A CH 7585959 A CH7585959 A CH 7585959A CH 378326 A CH378326 A CH 378326A
Authority
CH
Switzerland
Prior art keywords
benzoquinones
bis
preparation
new
starting material
Prior art date
Application number
CH7585959A
Other languages
German (de)
Inventor
Marxer Adrian Dr Prof
Original Assignee
Ciba Geigy
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 Ciba Geigy filed Critical Ciba Geigy
Priority to CH7585959A priority Critical patent/CH378326A/en
Priority to FR836205A priority patent/FR222M/en
Publication of CH378326A publication Critical patent/CH378326A/en

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D203/00Heterocyclic compounds containing three-membered rings with one nitrogen atom as the only ring hetero atom
    • C07D203/04Heterocyclic compounds containing three-membered rings with one nitrogen atom as the only ring hetero atom not condensed with other rings
    • C07D203/06Heterocyclic compounds containing three-membered rings with one nitrogen atom as the only ring hetero atom not condensed with other rings having no double bonds between ring members or between ring members and non-ring members
    • C07D203/08Heterocyclic compounds containing three-membered rings with one nitrogen atom as the only ring hetero atom not condensed with other rings having no double bonds between ring members or between ring members and non-ring members with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to the ring nitrogen atom
    • C07D203/14Heterocyclic compounds containing three-membered rings with one nitrogen atom as the only ring hetero atom not condensed with other rings having no double bonds between ring members or between ring members and non-ring members with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to the ring nitrogen atom with carbocyclic rings directly attached to the ring nitrogen atom

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)

Description

  

  
 



  Verfahren zur Herstellung neuer p-Benzochinone
Gegenstand der vorliegenden Erfindung ist ein Verfahren zur Herstellung von 2,5-Bis-äthylenimino3,6-bis-   acylamino-p -benzochinonen,    in denen der Acylrest derjenige einer cycloaliphatischen Carbonsäure ist. Als cycloaliphatische Carbonsäuren kommen dabei besonders in Frage: Cycloalkancarbonsäuren, wie die Cyclopentancarbonsäure oder vorzugsweise die Cyclohexancarbonsäure. Die   Sithylenimino-    gruppen können an den Kohlenstoffatomen alkyliert sein, vorzugsweise durch eine Methylgruppe. Die Erfindung betrifft insbesondere das   2,5-Bis-äthylen-       imino-3 ,6-biscydohexylcarbonylamino-pbenzochinon    der Formel
EMI1.1     

Die neuen Benzochinone sind gegen Amöben, wie z.

   B. gegen Entamoeba histolytica, sowie gegen Bakterien wirksam; zudem zeigen sie eine ausgeprägte tumorhemmende Wirkung bei niederer Toxizität.



   Das erfindungsgemässe Verfahren zur Herstellung der neuen Verbindungen besteht darin, dass man 2,5  Dihalogen-3, 6-bis-acylamino-p-benzochinone,    in denen der Acylrest derjenige einer cycloaliphatischen Carbonsäure ist, mit   Äthyleniminen    umsetzt. Unter den Dihalogenverbindungen eignen sich besonders die Dichlor- und Dibromverbindungen.



   Vorzugsweise arbeitet man in indifferenten Lösungsmitteln, wie Dioxan, Benzol oder auch in Gegenwart von Alkoholen, wie    < 2ithyl-,    Isopropyl- oder Butylalkohol oder Isopropyläther. Vorteilhaft verwendet man basische Kondensationsmittel, insbesondere tertiäre Amine, wie Trimethyl- oder Triäthylamin. Die Reaktion lässt sich bei Zimmertemperatur oder bei erhöhter Temperatur durchführen.



   Die Ausgangsstoffe sind bekannt oder können in an sich bekannter Weise hergestellt werden.



   Die verfahrensgemäss erhaltenen Chinone können als Bakterizide sowie als Heilmittel besonders bei Krebserkrankungen oder durch Amöben verursachten Erkrankungen, z. B. in Form pharmazeutischer Präparate, Verwendung finden. Diese enthalten die genannten Verbindungen z. B. in Mischung mit einem für die enterale, parenterale oder lokale Applikation geeigneten pharmazeutischen organischen oder anorganischen Trägermaterial.



   Im nachfolgenden Beispiel sind die Temperaturen in Celsiusgraden angegeben.



   Beispiel
30,5 g   2,5 -Dichlor- 3,6-bis - cyclohexylcarbonyl-    amino-p-benzochinon werden in 250 cm3 Dioxan suspendiert. Dann wird ein Gemisch von 11 cm3   Sithy-    lenimin und 20 g Triäthylamin in 50 cm3 Dioxan bei   Zimmertemperatur zugetropft und 7 Stunden bei einer Innentemperatur von   45O    gerührt.

   Man isoliert das Kristallisat durch Absaugen, wäscht es mit Alkohol, dann mit Wasser, und zum Schluss wieder mit Alkohol und erhält so das in rotvioletten   Nädelchen    kristallisierte   2,5-Bis -      äthylenimino- 3,6-    bis-cyclohexylcarbonylamino-p-benzochinon vom Zersetzungspunkt 213 bis   216".    Es besitzt die Formel
EMI2.1     

Das als Ausgangsstoff verwendete 2,5-Dichlor  3,6-bis- cyclohexylcarbonylamino -benzochinon    wird z. B. wie folgt erhalten:
48 g   2,5-Dichlor-3,6-diamino-benzochinon    werden in 185 g Cyclohexancarbonsäureanhydrid suspendiert, 2,3 cm konz. Schwefelsäure zugegeben, und die Suspension wird 18 Stunden bei einer Wasserbadtemperatur von   75o    gerührt.

   An Stelle der violetten Kristalle des Ausgangsmaterials liegt zum Schluss eine gelbe Kristallsuspension vor. Das überschüssige Anhydrid wird durch Zugabe von 180 cm3 Alkohol zerstört und das gebildete 2,5-Dichlor-3,6-bis-cyclohexylcarbonylamino-benzochinon abgesaugt, mit Alkohol gewaschen und aus Eisessig umkristallisiert.



     F.261-263".      



  
 



  Process for the preparation of new p-benzoquinones
The present invention relates to a process for the preparation of 2,5-bis-ethylenimino3,6-bis-acylamino-p -benzoquinones in which the acyl radical is that of a cycloaliphatic carboxylic acid. Particularly suitable cycloaliphatic carboxylic acids are: Cycloalkanecarboxylic acids, such as cyclopentanecarboxylic acid or, preferably, cyclohexanecarboxylic acid. The sithylenimino groups can be alkylated on the carbon atoms, preferably by a methyl group. The invention relates in particular to 2,5-bis-ethylene-imino-3, 6-biscydohexylcarbonylamino-pbenzoquinone of the formula
EMI1.1

The new benzoquinones are against amoeba such.

   B. effective against Entamoeba histolytica, as well as against bacteria; In addition, they show a pronounced tumor-inhibiting effect with low toxicity.



   The process according to the invention for the preparation of the new compounds consists in reacting 2.5 dihalo-3,6-bis-acylamino-p-benzoquinones, in which the acyl radical is that of a cycloaliphatic carboxylic acid, with ethylene imines. Among the dihalogen compounds, the dichloro and dibromo compounds are particularly suitable.



   It is preferred to work in inert solvents such as dioxane, benzene or in the presence of alcohols such as ethyl, isopropyl or butyl alcohol or isopropyl ether. Basic condensing agents, in particular tertiary amines, such as trimethylamine or triethylamine, are advantageously used. The reaction can be carried out at room temperature or at an elevated temperature.



   The starting materials are known or can be prepared in a manner known per se.



   The quinones obtained according to the method can be used as bactericides and as remedies, especially for cancer or diseases caused by amoeba, e.g. B. in the form of pharmaceutical preparations, use. These contain the compounds mentioned z. B. in a mixture with a pharmaceutical, organic or inorganic carrier material suitable for enteral, parenteral or local application.



   In the following example, the temperatures are given in degrees Celsius.



   example
30.5 g of 2,5-dichloro-3,6-bis-cyclohexylcarbonyl-amino-p-benzoquinone are suspended in 250 cm3 of dioxane. A mixture of 11 cm 3 of sithylenimine and 20 g of triethylamine in 50 cm 3 of dioxane is then added dropwise at room temperature and the mixture is stirred for 7 hours at an internal temperature of 450.

   The crystals are isolated by filtration with suction, washed with alcohol, then with water, and finally again with alcohol and so the 2,5-bis-ethylenimino-3,6-bis-cyclohexylcarbonylamino-p-benzoquinone crystallized in red-violet needles is obtained Decomposition point 213 to 216 ". It has the formula
EMI2.1

The 2,5-dichloro 3,6-bis-cyclohexylcarbonylamino-benzoquinone used as starting material is z. B. obtained as follows:
48 g of 2,5-dichloro-3,6-diamino-benzoquinone are suspended in 185 g of cyclohexanecarboxylic anhydride, 2.3 cm of conc. Sulfuric acid is added and the suspension is stirred for 18 hours at a water bath temperature of 75o.

   Instead of the violet crystals of the starting material, there is a yellow crystal suspension at the end. The excess anhydride is destroyed by adding 180 cm 3 of alcohol and the 2,5-dichloro-3,6-bis-cyclohexylcarbonylamino-benzoquinone formed is filtered off with suction, washed with alcohol and recrystallized from glacial acetic acid.



     F.261-263 ".

 

Claims (1)

PATENTANSPRUCH Verfahren zur Herstellung neuer p-Benzochinone, dadurch gekennzeichnet, dass man 2,5-Dihalogen-3,6- bis-acylamino-p-benzochinone, in denen der Acylrest derjenige einer cycloaliphatischen Carbonsäure ist, mit Äthyleniminen umsetzt. PATENT CLAIM Process for the preparation of new p-benzoquinones, characterized in that 2,5-dihalo-3,6-bis-acylamino-p-benzoquinones, in which the acyl radical is that of a cycloaliphatic carboxylic acid, is reacted with ethylene imines. UNTERANSPRÜCHE 1. Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man ein unsubstituiertes Athylenimin als Ausgangs stoff verwendet. SUBCLAIMS 1. The method according to claim, characterized in that an unsubstituted ethyleneimine is used as the starting material. 2. Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man ein C-alkyliertes, z. B. C-methyliertes Athylenimin als Ausgangsstoff verwendet. 2. The method according to claim, characterized in that a C-alkylated, z. B. C-methylated ethyleneimine used as a starting material. 3. Verfahren nach Patentanspruch und den Unteransprüchen 1 und 2, dadurch gekennzeichnet, dass man von solchen Benzochinonen ausgeht, in denen die Acylaminogruppen Reste von Cycloalkancarbonsäuren enthalten. 3. The method according to claim and the dependent claims 1 and 2, characterized in that one starts from those benzoquinones in which the acylamino groups contain radicals of cycloalkanecarboxylic acids. 4. Verfahren nach Patentanspruch und den Un teransprüchen 1-3, dadurch gekennzeichnet, dass man von solchen Benzochinonen ausgeht, in denen die Acylaminogruppen den Rest der Cyclohexancarbonsäure enthalten. 4. The method according to claim and the sub-claims 1-3, characterized in that one starts from such benzoquinones in which the acylamino groups contain the remainder of the cyclohexanecarboxylic acid.
CH7585959A 1959-07-17 1959-07-17 Process for the preparation of new p-benzoquinones CH378326A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CH7585959A CH378326A (en) 1959-07-17 1959-07-17 Process for the preparation of new p-benzoquinones
FR836205A FR222M (en) 1959-07-17 1960-08-19 New 2,5-bis-ethylene-imino-3,6-bis-acylamino-p-benzoquinone usable in therapy.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH7585959A CH378326A (en) 1959-07-17 1959-07-17 Process for the preparation of new p-benzoquinones

Publications (1)

Publication Number Publication Date
CH378326A true CH378326A (en) 1964-06-15

Family

ID=4534497

Family Applications (1)

Application Number Title Priority Date Filing Date
CH7585959A CH378326A (en) 1959-07-17 1959-07-17 Process for the preparation of new p-benzoquinones

Country Status (1)

Country Link
CH (1) CH378326A (en)

Similar Documents

Publication Publication Date Title
DE1167328B (en) Process for the preparation of salicylic anilides
DE863055C (en) Process for the preparation of ethyleneimine compounds
CH378326A (en) Process for the preparation of new p-benzoquinones
AT218511B (en) Process for the preparation of new quinone compounds
CH387010A (en) Process for the preparation of benzamide derivatives which are optionally substituted in the core
CH343402A (en) Process for the production of new quinones
EP0039835B1 (en) Process for the preparation of 2-amino-6-nitro-benzothiazole
DE947970C (en) Process for the preparation of 2,5-diphenyl-thiodiazole- (1,3,4) and its phenyl-substituted Abkoemmlingen
DE1125431B (en) Process for the preparation of 2, 5-bis-aethyleneimino-3, 6-bis-acylamino-p-benzoquinones
CH377823A (en) Process for the preparation of new quinone derivatives
CH343403A (en) Process for the production of new quinones
AT228224B (en) Process for the preparation of new N-hydroxyalkyl-substituted carbamic acid esters
AT233586B (en) Process for the preparation of new 4,4&#39;-disubstituted diphenyl sulfones
AT163197B (en) Process for the production of new amines
AT258935B (en) Process for the preparation of new substituted pyridylureas
AT166449B (en) Process for the preparation of new piperazine derivatives
AT203496B (en) Process for the preparation of new tertiary amines
DE1125432B (en) Process for the preparation of 2, 5-bis-aethyleneimino-3, 6-bis-acylamino-p-benzoquinones
DE847894C (en) Process for the preparation of m-allyloxyphenyl isothiocyanate
AT214643B (en) Process for the polymerization of organic, unsaturated compounds
DE899355C (en) Process for the preparation of pteroic acids
AT218534B (en) Process for the production of new substituted ureas
DE1117585B (en) Process for the preparation of 2,5-bis-AEthylenimino-3,6-bis-acylamino-p-benzoquinones
CH499533A (en) Di-benzoxazolylethylene cpds prepn
CH490407A (en) Process for the preparation of di-benzoxazolyl-ethylene compounds