CH281959A - 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
CH281959A
CH281959A CH281959DA CH281959A CH 281959 A CH281959 A CH 281959A CH 281959D A CH281959D A CH 281959DA CH 281959 A CH281959 A CH 281959A
Authority
CH
Switzerland
Prior art keywords
acid derivative
carbamic acid
preparation
dimethyl
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 CH281959A publication Critical patent/CH281959A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D277/00—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings
    • C07D277/02—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings not condensed with other rings
    • C07D277/20—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
    • C07D277/32—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members 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
    • C07D277/34—Oxygen atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D239/00—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings
    • C07D239/02—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings
    • C07D239/24—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members
    • C07D239/28—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, directly attached to ring carbon atoms
    • C07D239/32—One oxygen, sulfur or nitrogen atom
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D309/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings
    • C07D309/34—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members
    • C07D309/36—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members with oxygen atoms directly attached to ring carbon atoms

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (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 Ver  bindung 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-          Äthyl    - 4,5 -     dimethyl    -     pyrimidyl    - (6) -     dimethyl-          carbamat,    siedet unter 0,05 mm Druck bei<B>119</B>  bis l.20 . Sie soll als Wirkstoff für Schäd  lingsbekämpfungsmittel Verwendung finden.

    <I>Beispiel:</I>  16 Teile des     Natriumsalzes    des     2-Äthyl-4,5-          dimethyl-6-oxi#-pyrimidins,    welches durch Um  setzen von     2-Äthyl-4,5-dimethyl-6-oxy-pyrimi-          din    mit     Natriummethylat    erhältlich ist, wer  den in Benzol suspendiert und nach Zugabe  von 17. Teilen     Dimethylcarbaminsäurechlorid     etwa 12 Stunden unter     Rückfluss    gekocht.  Nachdem man das gebildete Kochsalz durch  Absaugen abgetrennt hat, destilliert man das    Benzol ab.

   Beim Fraktionieren des Rückstan  des erhält man das     2-Äthyl-4,5-dimethyl-pyri-          midyl-(6)-dimethylcarbamat    als farbloses Öl,  welches unter 0,05 mm Druck bei 119 bis 120        iibp.rmt-.bt  



  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 method is characterized in that one is 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-ethyl - 4,5 - dimethyl - pyrimidyl - (6) - dimethyl carbamate, boils under 0.05 mm pressure at 119 to 1.20. It should be used as an active ingredient for pesticides.

    <I> Example: </I> 16 parts of the sodium salt of 2-ethyl-4,5-dimethyl-6-oxy # pyrimidine, which is obtained by converting 2-ethyl-4,5-dimethyl-6-oxy- pyrimidine can be obtained with sodium methylate, whoever is suspended in benzene and, after adding 17 parts of dimethylcarbamic 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-4,5-dimethyl-pyrimidyl- (6) -dimethylcarbamate is obtained as a colorless oil, which under 0.05 mm pressure at 119 to 120 iibp.rmt-.bt

Claims (1)

PATENTANSPRUCH Verfahren zur Herstellung eines hetero- cyclischen Carbaminsäurederivates, dadurch gekennzeichnet, dass man eine Verbindung der Formel EMI0001.0029 mit einem Carbaminsäurederivat der Formel EMI0001.0031 umsetzt, worin X und Y zwei sich im Verlaufe des Verfahrens abspaltende Reste bedeuten. Die erhaltene neue Verbindung, das 2- Äthyl -4,5 - dimethyl - pyrimidyl - (6) - dimethyl- carbamat, siedet unter 0,05 mm Druck bei 119 bis 120 . PATENT CLAIM Process for the preparation of a heterocyclic carbamic acid derivative, characterized in that a compound of the formula EMI0001.0029 with a carbamic acid derivative of the formula EMI0001.0031 converts, where X and Y are two radicals split off in the course of the process. The new compound obtained, 2-ethyl -4,5-dimethyl-pyrimidyl- (6) -dimethyl-carbamate, boils at 119 to 120 under 0.05 mm pressure. UNTERANSPRUCI3 Verfahren nach Patentansprueh, dadurch gekennzeichnet, dass man ein Alkalisalz des 2-Äthyl-4,5-dimethyl-(6)-oxy-pyrimidins mit einem Dimethylcarbaminsäurehalogenid um setzt. SUBSTITUTE SHEET A method according to patent claim, characterized in that an alkali salt of 2-ethyl-4,5-dimethyl- (6) -oxy-pyrimidine is reacted with a dimethylcarbamic acid halide.
CH281959D 1949-08-22 1949-08-26 Process for the preparation of a heterocyclic carbamic acid derivative. CH281959A (en)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
CH2694712X 1949-08-22
CH2681915X 1949-08-22
CH2681916X 1949-08-22
CH2681879X 1949-08-22
CH2681914X 1949-08-22
CH281959T 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
CH281959A true CH281959A (en) 1952-03-31

Family

ID=32303877

Family Applications (1)

Application Number Title Priority Date Filing Date
CH281959D CH281959A (en) 1949-08-22 1949-08-26 Process for the preparation of a heterocyclic carbamic acid derivative.

Country Status (1)

Country Link
CH (1) CH281959A (en)

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