CH281949A - Process for the preparation of a heterocyclic carbamic acid derivative. - Google Patents

Process for the preparation of a heterocyclic carbamic acid derivative.

Info

Publication number
CH281949A
CH281949A CH281949DA CH281949A CH 281949 A CH281949 A CH 281949A CH 281949D A CH281949D A CH 281949DA CH 281949 A CH281949 A CH 281949A
Authority
CH
Switzerland
Prior art keywords
acid derivative
carbamic acid
preparation
methyl
heterocyclic
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
Priority claimed from GB3001049A external-priority patent/GB681376A/en
Publication of CH281949A publication Critical patent/CH281949A/en

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Description

  

  Verfahren zur Herstellung eines     heterocyclischen        Carbaminsäurederivates.       Gegenstand vorliegenden Patentes ist ein  Verfahren zur Herstellung eines     heterocycli-          schen        Carbaminsäurederivates.    Das Verfahren  ist dadurch gekennzeichnet, dass man eine  Verbindung der Formel  
EMI0001.0006     
    mit einem     Carbaminsäurederivat    der Formel  
EMI0001.0008     
    umsetzt, worin X und Y zwei sich im Verlaufe  des Verfahrens abspaltende Reste bedeuten.  



  Die erhaltene neue Verbindung, das 2  1t     hyl    -     4-methyl-pyriniidy    1- (6) -     dimethylcarba-          inat,    siedet unter 11     min    Druck bei 163 bis  166 .  



  <I>Beispiel:</I>  <B>16</B> Teile des     Natriumsalzes    de- 2-Ä     thyl-4-          niethyl-6-oxy-pyrimidins,    welches durch Um  setzen von     2-Äthyl-4-methyl-6-oxy-pyrimidin     mit     Nat.riummethylat    erhältlich ist, werden in  Benzol suspendiert und nach Zugabe von 11  Teilen     Dimethylcarbaininsäurechlorid    etwa 12  Stunden unter     Rückfluss    gekocht.. Nachdem  man das gebildete Kochsalz durch Absaugen  abgetrennt hat, destilliert man das Benzol ab.

      Beim Fraktionieren des Rückstandes erhält  man das     2-Äthyl-4-methyl-pyrimidyl-(6)-di-          inethylcarbamat    als farbloses Öl, welches unter  11 mm Druck bei 163 bis 166  übergeht.



  Process for the preparation of a heterocyclic carbamic acid derivative. The present patent relates to a process for the preparation of a heterocyclic carbamic acid derivative. The process is characterized in that a compound of the formula
EMI0001.0006
    with a carbamic acid derivative of the formula
EMI0001.0008
    converts, where X and Y are two radicals split off in the course of the process.



  The new compound obtained, the 2 1-ethyl-4-methyl-pyriniidy 1- (6) -dimethylcarbainate, boils under pressure of 11 minutes at 163 to 166.



  <I> Example: </I> <B> 16 </B> parts of the sodium salt de- 2-ethyl-4-niethyl-6-oxy-pyrimidine, which is obtained by reacting 2-ethyl-4-methyl- 6-oxy-pyrimidine is obtainable with sodium methylate, are suspended in benzene and, after addition of 11 parts of dimethylcarbainic acid chloride, refluxed for about 12 hours. After the sodium chloride formed has been separated off by suction, the benzene is distilled off.

      When the residue is fractionated, 2-ethyl-4-methyl-pyrimidyl- (6) -diinethylcarbamate is obtained as a colorless oil, which passes over at 163 to 166 under 11 mm pressure.

Claims (1)

PATENTANSPRUCH Verfahren zur Herstellung eines hetero eyclischen Carbaminsäurederivates, dadurch gekennzeichnet, dass man eine Verbindung der Formel EMI0001.0025 mit einem Carbaminsäurederivat der Formel EMI0001.0027 umsetzt, worin X und Y zwei sich im Verlaufe des Verfahrens abspaltende Reste bedeuten. Die erhaltene neue Verbindung, das 2- Äthyl - 4-methyl-pyrimidyl- (6) - dimethylcarba- mat, siedet unter 11 mm Druck bei 163 bis 166 . PATENT CLAIM Process for the preparation of a hetero eyclischen carbamic acid derivative, characterized in that a compound of the formula EMI0001.0025 with a carbamic acid derivative of the formula EMI0001.0027 converts, where X and Y are two radicals split off in the course of the process. The new compound obtained, the 2-ethyl-4-methyl-pyrimidyl- (6) -dimethylcarba- mat, boils under 11 mm pressure at 163 to 166. UNTERANSPRUCH Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man ein Alkalisalz des -@thyl-4-metliyl-6-oxy -pyrimidins mit einem Dimethylcarbaminsäurehalogenid umsetzt. SUBSTANTIAL CLAIM Process according to patent claim, characterized in that an alkali salt of - @thyl-4-methyl-6-oxy-pyrimidine is reacted with a dimethylcarbamic acid halide.
CH281949D 1949-08-22 1949-08-26 Process for the preparation of a heterocyclic carbamic acid derivative. CH281949A (en)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
CH2681915X 1949-08-22
CH2681914X 1949-08-22
CH2694712X 1949-08-22
CH2681916X 1949-08-22
CH2681879X 1949-08-22
CH281949T 1949-08-26
GB3001049A GB681376A (en) 1949-11-23 1949-11-23 Manufacture of heterocyclic carbamic acid derivatives and their use as agents for combating pests

Publications (1)

Publication Number Publication Date
CH281949A true CH281949A (en) 1952-03-31

Family

ID=32303870

Family Applications (1)

Application Number Title Priority Date Filing Date
CH281949D CH281949A (en) 1949-08-22 1949-08-26 Process for the preparation of a heterocyclic carbamic acid derivative.

Country Status (1)

Country Link
CH (1) CH281949A (en)

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