CH304975A - Process for the preparation of a new aralkylated acetoacetic acid amide. - Google Patents

Process for the preparation of a new aralkylated acetoacetic acid amide.

Info

Publication number
CH304975A
CH304975A CH304975DA CH304975A CH 304975 A CH304975 A CH 304975A CH 304975D A CH304975D A CH 304975DA CH 304975 A CH304975 A CH 304975A
Authority
CH
Switzerland
Prior art keywords
acetoacetic acid
aralkylated
new
preparation
acid amide
Prior art date
Application number
Other languages
German (de)
Inventor
Eduard Dr Utzinger Gustav
Original Assignee
Eduard Dr Utzinger Gustav
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 Eduard Dr Utzinger Gustav filed Critical Eduard Dr Utzinger Gustav
Publication of CH304975A publication Critical patent/CH304975A/en

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Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C231/00Preparation of carboxylic acid amides
    • C07C231/02Preparation of carboxylic acid amides from carboxylic acids or from esters, anhydrides, or halides thereof by reaction with ammonia or amines
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N2300/00Combinations or mixtures of active ingredients covered by classes A01N27/00 - A01N65/48 with other active or formulation relevant ingredients, e.g. specific carrier materials or surfactants, covered by classes A01N25/00 - A01N65/48

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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     eines    neuen     aralkylierten        Acetessigsäureamids.       Gegenstand der Erfindung ist ein Ver  fahren zur Herstellung eines neuen     aralkylier-          ten        Acetessigsäureamids,    nämlich des     a-(p-          Chlorbenzyl)-acetessigsäurediäthylamids.    Es  zeichnet sieh dadurch aus, dass man einen  reaktiven Ester des     p-Clilorbenzyla.lkohols    auf       Acetessigsäurediäthylamid    einwirken lässt.

   Als  reaktive Ester des     p-Chlorbenzylalkohols     eignen sich vor allem die     Halo-genwasserstoff-          säureester.    Der Umsatz     erfolgt    vorzugsweise in  Anwesenheit eines Basisehen     Kondensations-          mittels,    wie zum Beispiel     Alkalihydroxyden,          Alkalialkoholaten,        Alkalicarbonaten    usw., so  wie in Anwesenheit eines     Lösungs-    bzw. Ver  dünnungsmittels; beispielsweise in Methanol,       ithanol    oder     Propanol.     



  Das auf diese Weise erhaltene     a-(p-Chlor-          benzy    1) -     acetessigsäurediäthylamid    ist ein  viskoses Öl, welches unter 0,1 mm bei 157 bis       158     siedet. Es zeigt sehr starke     insektenver-          grämende    Wirkung und soll daher zur Ab  haltung von Insekten dienen.

      <I>Beispiel:</I>    20 g     Acetessigsäurediäthylamid    und 20 g       p-Chlorbenzylchlorid    werden in einer Lösung  von 3 g Natrium in 300     cms        abs.    Äthanol  7 Tage bei 20  stehengelassen.     Anschliessend     wird das gebildete Kochsalz     abfiltriert,    die  Lösung eingedampft und der ölige Rückstand    in 100     eri13        Isopropyläther    gelöst. Nach dem  Waschen mit     Wasser    wird mit     Natriumsulfat     getrocknet und eingedampft. Der     Rückstand     wird im Feinvakuum destilliert.

   Man erhält so  20 g     a-(p-Chlorbenzyl)-acetessigsäurediäthyl-          aniid    als ein viskoses Öl, das unter 0,1     mm    bei  <B>157-1.58o</B>     siedet.  



  Process for the preparation of a new aralkylated acetoacetic acid amide. The invention relates to a process for the production of a new aralkylated acetoacetic acid amide, namely a- (p-chlorobenzyl) -acetoacetic acid diethyl amide. It is characterized by the fact that a reactive ester of p-Clilorbenzyla.lkohols is allowed to act on acetoacetic acid diethylamide.

   Particularly suitable reactive esters of p-chlorobenzyl alcohol are the hydrogen halide esters. The conversion is preferably carried out in the presence of a basic condensation agent, such as, for example, alkali metal hydroxides, alkali metal alcoholates, alkali metal carbonates, etc., as well as in the presence of a solvent or diluent; for example in methanol, ithanol or propanol.



  The a- (p-chlorobenzy 1) acetic acid diethylamide obtained in this way is a viscous oil which boils at 157 to 158 below 0.1 mm. It has a very strong insect repellant effect and should therefore serve to deter insects.

      <I> Example: </I> 20 g of acetoacetic acid diethylamide and 20 g of p-chlorobenzyl chloride are dissolved in a solution of 3 g of sodium in 300 cms of abs. Ethanol left to stand at 20 for 7 days. The common salt formed is then filtered off, the solution is evaporated and the oily residue is dissolved in 100 ml of isopropyl ether. After washing with water, it is dried with sodium sulfate and evaporated. The residue is distilled in a fine vacuum.

   This gives 20 g of a- (p-chlorobenzyl) -acetoacetic acid diethyl aniide as a viscous oil which boils below 0.1 mm at 157-1.58o.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen aralkylierten Acetessigsäureamids, dadurch gekennzeichnet, dass man Acetessigsäuredi- äthylamid mit. PATENT CLAIM: Process for the preparation of a new aralkylated acetoacetic acid amide, characterized in that one with acetoacetic acid di-ethylamide. einem reaktiven Ester des p- Chlorbenzylalkohöls aralkyliert. Das so erhal tene a-(p-Chlorbenzyl)-acetessigsäurediäthyl- arnid bildet ein geruchloses viskoses Öl, welches unter 0,1 mm bei 157-158 siedet, und soll als insektenvergrämendes Mittel Ver wendung finden. UNTERANSPRÜCHE: 1. Verfahren nach Patentanspruch, da durch gekennzeichnet, dass man als reaktiven Ester des p-Chlorbenzylalkohols einen Halo genwasserstoffsäureester verwendet. 2. aralkylated with a reactive ester of p-chlorobenzyl alcohol. The a- (p-chlorobenzyl) -acetoacetic acid diethyl arnide obtained in this way forms an odorless, viscous oil which boils below 0.1 mm at 157-158 and is said to be used as an insect repellent. SUBClaims: 1. The method according to claim, characterized in that a halogenated hydrogen acid ester is used as the reactive ester of p-chlorobenzyl alcohol. 2. Verfahren gemäss Patentanspruch, da durch gekennzeichnet, dass man den Umsatz in Gegenwart eines basischen Kondensations mittels und eines Lösungs- bzw. Verdünnungs mittels vornimmt. Process according to patent claim, characterized in that the conversion is carried out in the presence of a basic condensation agent and a solvent or diluent.
CH304975D 1951-03-30 1951-03-30 Process for the preparation of a new aralkylated acetoacetic acid amide. CH304975A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH304975T 1951-03-30
CH302082T 1951-03-30

Publications (1)

Publication Number Publication Date
CH304975A true CH304975A (en) 1955-01-31

Family

ID=25734455

Family Applications (1)

Application Number Title Priority Date Filing Date
CH304975D CH304975A (en) 1951-03-30 1951-03-30 Process for the preparation of a new aralkylated acetoacetic acid amide.

Country Status (1)

Country Link
CH (1) CH304975A (en)

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