CH275103A - Process for the preparation of a basic ether of an ortho-substituted phenol. - Google Patents

Process for the preparation of a basic ether of an ortho-substituted phenol.

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Publication number
CH275103A
CH275103A CH275103DA CH275103A CH 275103 A CH275103 A CH 275103A CH 275103D A CH275103D A CH 275103DA CH 275103 A CH275103 A CH 275103A
Authority
CH
Switzerland
Prior art keywords
ortho
dimethylamino
preparation
substituted phenol
ether
Prior art date
Application number
Other languages
German (de)
Inventor
Ag J R Geigy
Original Assignee
Ag J R 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 Ag J R Geigy filed Critical Ag J R Geigy
Publication of CH275103A publication Critical patent/CH275103A/en

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Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D333/00Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom
    • C07D333/02Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings
    • C07D333/04Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings not substituted on the ring sulphur atom
    • C07D333/06Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings not substituted on the ring sulphur atom with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to the ring carbon atoms
    • C07D333/14Radicals substituted by singly bound hetero atoms other than halogen
    • C07D333/16Radicals substituted by singly bound hetero atoms other than halogen by oxygen atoms

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

Description

  

  Verfahren zur Herstellung eines basischen Äthers eines     ortho-substituierten        Phenöls.       Gegenstand vorliegenden Patentes ist ein  Verfahren zur Herstellung eines basischen  Äthers eines     ortho-substituierten    Phenols. Das  Verfahren ist dadurch gekennzeichnet, dass  man einen reaktionsfähigen Ester des     fl-Di-          methylamino-isopropanols    mit einer den Rest  
EMI0001.0006     
    einführenden Verbindung, wie z. B. mit     2-(o-          Oxy-benzyl)-thiophen    oder einem seiner Salze,       veräthert.     



  Die erhaltene neue Verbindung, das     2-[o-          (ss        -Dimethjamino-isopropoxy)        -benzyl]-thio-          phen,    siedet unter einem Druck von 0,6 mm  bei 149 bis 150 . Sie soll     therapeutische    Ver  wendung finden.  



  <I>Beispiel:</I>  Unter gutem Rühren und Erwärmen am       Rückflusskühler    unter     Feuchtigkeitsabschluss     wird aus 20 Teilen Methylalkohol und 2,3 Tei  len Natrium in 250 Teilen     abs.        Toluol    das       Alkoholat    dargestellt. Dann werden 19 Teile       2-(o-Oxy-benzyl)-thiophen    zugegeben und der  Methylalkohol vollständig     abdestilliert.    Hier  auf werden bei etwa 90 bis 95  13 Teile     fl-          Dimethylamino    -     isopropylchlorid        zugetropft.     Nach beendigtem     Zutropfen    wird noch 3 Std.

    unter     Rückfluss    erhitzt. Nach dem     Abkühlen     und Versetzen mit etwas Äther wird der basi  sche     Phenoläther    mit total 300 Teilen 2n-    Salzsäure in 2 Portionen aufgenommen, mit       konz.    Natronlauge unter guter Eiskühlung  alkalisch gestellt und     ausgeäthert.    Die ätheri  sche Lösung wird mit Natriumsulfat getrock  net,     abfiltriert,    der Äther     abdestilliert    und der  Rückstand der     Vakuiundestillation    unterwor  fen.

   Unter 0,6 mm Druck geht das     2-[o-(B-          Dimethylamino-isopropoxy)-benzyl]        -thiophen     bei 149 bis 150  als leicht viskoses Öl über.



  Process for the preparation of a basic ether of an ortho-substituted phen oil. The present patent is a process for the preparation of a basic ether of an ortho-substituted phenol. The method is characterized in that a reactive ester of fl-dimethylamino-isopropanol with one of the remainder
EMI0001.0006
    introductory compound, such as B. with 2- (o-oxy-benzyl) thiophene or one of its salts, etherified.



  The new compound obtained, 2- [o- (ss -dimethjamino-isopropoxy) -benzyl] -thiophene, boils at 149 to 150 under a pressure of 0.6 mm. It should find therapeutic use.



  <I> Example: </I> With thorough stirring and heating on the reflux condenser with exclusion of moisture, 20 parts of methyl alcohol and 2.3 parts of sodium in 250 parts of abs. Toluene represented the alcoholate. Then 19 parts of 2- (o-oxy-benzyl) thiophene are added and the methyl alcohol is completely distilled off. Here at about 90 to 95 13 parts of fl-dimethylamino-isopropyl chloride are added dropwise. After the dropping is complete, another 3 hours.

    heated under reflux. After cooling and adding a little ether, the basic phenol ether is taken up with a total of 300 parts of 2N hydrochloric acid in 2 portions, with conc. Sodium hydroxide solution made alkaline with good ice cooling and extracted with ether. The ethereal solution is dried with sodium sulfate, filtered off, the ether is distilled off and the residue is subjected to vacuum distillation.

   Under 0.6 mm pressure, the 2- [o- (B-dimethylamino-isopropoxy) -benzyl] -thiophene passes over at 149 to 150 as a slightly viscous oil.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines basischen Äthers eines ortho-substituierten Phenols, da durch gekennzeichnet, dass man einen reak tionsfähigen Ester des ss-Dimethylamino-iso- propanols mit einer den Rest EMI0001.0043 einführenden Verbindung veräthert. Die erhaltene neue Verbindung, das 2-[o- (iss;- Dimethylamino - isopropoxy) -benzyl] - thio- phen, siedet unter einem Druck von 0,6 mm bei 149 bis 150<B>1</B>. PATENT CLAIM: Process for the production of a basic ether of an ortho-substituted phenol, characterized in that one has a reactive ester of β-dimethylamino-isopropanol with one of the rest EMI0001.0043 introductory connection etherified. The new compound obtained, 2- [o- (iss; -dimethylamino-isopropoxy) -benzyl] -thiophene, boils under a pressure of 0.6 mm at 149 to 150 <B> 1 </B>. UNTERANSPRUCH: Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man ein Alkalimetallsalz des 2-(o-Oxy-benzyl)-thiophens mit einem Ha logenwasser stoffsäureester des ,B - Dimethyl- amino-isopropanols umsetzt. SUBSTANTIAL CLAIM: Process according to patent claim, characterized in that an alkali metal salt of 2- (o-oxy-benzyl) thiophene is reacted with a halogenated hydrogen ester of B-dimethylamino-isopropanol.
CH275103D 1949-01-06 1949-01-06 Process for the preparation of a basic ether of an ortho-substituted phenol. CH275103A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH275103T 1949-01-06
CH271776T 1949-01-06

Publications (1)

Publication Number Publication Date
CH275103A true CH275103A (en) 1951-04-30

Family

ID=25731324

Family Applications (1)

Application Number Title Priority Date Filing Date
CH275103D CH275103A (en) 1949-01-06 1949-01-06 Process for the preparation of a basic ether of an ortho-substituted phenol.

Country Status (1)

Country Link
CH (1) CH275103A (en)

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