CH196876A - Process for the preparation of a condensation product which can be used for pest control. - Google Patents

Process for the preparation of a condensation product which can be used for pest control.

Info

Publication number
CH196876A
CH196876A CH196876DA CH196876A CH 196876 A CH196876 A CH 196876A CH 196876D A CH196876D A CH 196876DA CH 196876 A CH196876 A CH 196876A
Authority
CH
Switzerland
Prior art keywords
sulfonic acid
benzaldehyde
water
dichlorobenzyl
condensation
Prior art date
Application number
Other languages
German (de)
Inventor
A-G J R Geigy
Original Assignee
Geigy Ag J R
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 Geigy Ag J R filed Critical Geigy Ag J R
Publication of CH196876A publication Critical patent/CH196876A/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION 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
    • A01N41/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a sulfur atom bound to a hetero atom
    • A01N41/02—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a sulfur atom bound to a hetero atom containing a sulfur-to-oxygen double bond
    • A01N41/04—Sulfonic acids; Derivatives thereof

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Pest Control & Pesticides (AREA)
  • Plant Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

  



  Verfahren zur Darstellung eines zur   Sehädlingsbekämpfung    verwendbaren    Eondensationsproduktes.   



   Es wurde gefunden, dass durch Kondensation von Ben. zaldehyd-o-sulfoneäure mit x, x-Dichlorbenzylmercapta n, dargestellt aus x, x-Dichlorbenzylchlorid, wie es durch   Chlo-      rierung    von Benzylchlorid erhÏltlich ist, in Gegenwart saurer   Eondensationsmittel    ein wasserl¯sliches, bestÏndiges Tetrachlorbenzylmercaptal der Benzaldehyd-o-sulfonsÏure erhalten werden kann, welche Verbindung hervorragend zur Verwendung   als Schäd-      lingsbekämpfungsmittel, insbesondere    zum   Immunisieren    gegen   Kleidermotten    geeignet ist.

   Das neue   Eondensationsmittel    stellt nach dem Trocknen und Mahlen ein helles Pulver dar, das in Wasser loslich ist und   schwer-    l¯sliche Blei- und Eisensalze bildet.



   Beispiel:
20 Teile   x,    x-Dichlorbenzylmercaptan (1/10   Mol.),    dargestellt aus   x,      x-Dichlorbenzylchlo-    rid, das seinerseits durch Chlorierung von Benzylchlorid gewonnen wird, und 11,5 Teile   Benzaldehyd-o-sulfonsäure    79% ig (1/20 Mol.) werden in 55   Volumteilen    Eisessig gelost und die L¯sung mit SalzsÏurega s gesÏttigt.



  Nachdem das Reaktionsgemisch wÏhrend   15    Stunden bei gewöhnlicher Temperatur   gestanden    ha. t, wird es in 300 Teile Wasser eingerührt, wobei auf Zusatz von gesättigter    Kochsalzlösung das abgeschiedene dick-    flüssige Öl sich gut abtrennt. Im Vakuum getrocknet, bildet es ein pulverisierbares, helles, in Wasser lösliches Produkt. Das Tetraohlorbenzylmercaptal der Benzaldehyd  o-sulfonsäure    bildet schwer l¯sliche Blei- und Eisensalze.  



   PATENTANSPRUCH :
Verfah. ren zur Darstellung eines zur    Schädlingsbekämpfung verwendbaren Eon-      densationsproduktes,    eines Tetrachlorbenzyl  merca.    ptals der   Benzaldehyd-o-sulfonsäure,    dadurch gekennzeichnet, dass man Benzalde  hyd-o-sulfonsäure    mit   x,    x-Dichlorbenzylmer 

**WARNUNG** Ende DESC Feld konnte Anfang CLMS uberlappen**.





  



  Process for the preparation of a condensation product which can be used for combating pests.



   It was found that by condensation of Ben. zaldehyde-o-sulfonic acid with x, x-dichlorobenzyl mercapta n, prepared from x, x-dichlorobenzyl chloride, as can be obtained by chlorination of benzyl chloride, in the presence of an acidic condensation agent, a water-soluble, permanent tetrachlorobenzyl mercaptal of benzaldehyde-o-sulfonic acid is obtained which compound is outstandingly suitable for use as a pest control agent, in particular for immunizing against clothes moths.

   After drying and grinding, the new condensation agent is a light-colored powder that is soluble in water and forms poorly soluble lead and iron salts.



   Example:
20 parts of x, x-dichlorobenzyl mercaptan (1/10 mol.), Prepared from x, x-dichlorobenzyl chloride, which in turn is obtained by chlorination of benzyl chloride, and 11.5 parts of benzaldehyde-o-sulfonic acid 79% (1 / 20 mol.) Are dissolved in 55 parts by volume of glacial acetic acid and the solution is saturated with hydrochloric acid.



  After the reaction mixture has stood at normal temperature for 15 hours, it is stirred into 300 parts of water, the thick oil which has separated out separates out well on addition of saturated sodium chloride solution. When dried in a vacuum, it forms a pulverizable, light-colored product that is soluble in water. The tetraobenzyl mercaptal of benzaldehyde o-sulfonic acid forms poorly soluble lead and iron salts.



   PATENT CLAIM:
Procedure. Ren for the representation of an erosion product that can be used for pest control, a tetrachlorobenzyl merca. ptals of benzaldehyde-o-sulfonic acid, characterized in that benzaldehyde-o-sulfonic acid with x, x-dichlorobenzylmer

** WARNING ** End of DESC field could overlap beginning of CLMS **.

Claims (1)

**WARNUNG** Anfang CLMS Feld konnte Ende DESC uberlappen **. ** WARNING ** Beginning of CLMS field could overlap end of DESC **. Verfahren zur Darstellung eines zur Sehädlingsbekämpfung verwendbaren Eondensationsproduktes. Process for the preparation of a condensation product which can be used for combating pests. Es wurde gefunden, dass durch Kondensation von Ben. zaldehyd-o-sulfoneäure mit x, x-Dichlorbenzylmercapta n, dargestellt aus x, x-Dichlorbenzylchlorid, wie es durch Chlo- rierung von Benzylchlorid erhÏltlich ist, in Gegenwart saurer Eondensationsmittel ein wasserl¯sliches, bestÏndiges Tetrachlorbenzylmercaptal der Benzaldehyd-o-sulfonsÏure erhalten werden kann, welche Verbindung hervorragend zur Verwendung als Schäd- lingsbekämpfungsmittel, insbesondere zum Immunisieren gegen Kleidermotten geeignet ist. It was found that by condensation of Ben. zaldehyde-o-sulfonic acid with x, x-dichlorobenzyl mercapta n, prepared from x, x-dichlorobenzyl chloride, as can be obtained by chlorination of benzyl chloride, in the presence of an acidic condensation agent, a water-soluble, permanent tetrachlorobenzyl mercaptal of benzaldehyde-o-sulfonic acid is obtained which compound is outstandingly suitable for use as a pest control agent, in particular for immunizing against clothes moths. Das neue Eondensationsmittel stellt nach dem Trocknen und Mahlen ein helles Pulver dar, das in Wasser loslich ist und schwer- l¯sliche Blei- und Eisensalze bildet. After drying and grinding, the new condensation agent is a light-colored powder that is soluble in water and forms poorly soluble lead and iron salts. Beispiel: 20 Teile x, x-Dichlorbenzylmercaptan (1/10 Mol.), dargestellt aus x, x-Dichlorbenzylchlo- rid, das seinerseits durch Chlorierung von Benzylchlorid gewonnen wird, und 11,5 Teile Benzaldehyd-o-sulfonsäure 79% ig (1/20 Mol.) werden in 55 Volumteilen Eisessig gelost und die L¯sung mit SalzsÏurega s gesÏttigt. Example: 20 parts of x, x-dichlorobenzyl mercaptan (1/10 mol.), Prepared from x, x-dichlorobenzyl chloride, which in turn is obtained by chlorination of benzyl chloride, and 11.5 parts of benzaldehyde-o-sulfonic acid 79% (1 / 20 mol.) Are dissolved in 55 parts by volume of glacial acetic acid and the solution is saturated with hydrochloric acid. Nachdem das Reaktionsgemisch wÏhrend 15 Stunden bei gewöhnlicher Temperatur gestanden ha. t, wird es in 300 Teile Wasser eingerührt, wobei auf Zusatz von gesättigter Kochsalzlösung das abgeschiedene dick- flüssige Öl sich gut abtrennt. Im Vakuum getrocknet, bildet es ein pulverisierbares, helles, in Wasser lösliches Produkt. Das Tetraohlorbenzylmercaptal der Benzaldehyd o-sulfonsäure bildet schwer l¯sliche Blei- und Eisensalze. After the reaction mixture has stood at normal temperature for 15 hours, it is stirred into 300 parts of water, the thick oil which has separated out separates out well on addition of saturated sodium chloride solution. When dried in a vacuum, it forms a pulverizable, light-colored product that is soluble in water. The tetraobenzyl mercaptal of benzaldehyde o-sulfonic acid forms poorly soluble lead and iron salts. PATENTANSPRUCH : Verfah. ren zur Darstellung eines zur Schädlingsbekämpfung verwendbaren Eon- densationsproduktes, eines Tetrachlorbenzyl merca. ptals der Benzaldehyd-o-sulfonsäure, dadurch gekennzeichnet, dass man Benzalde hyd-o-sulfonsäure mit x, x-Dichlorbenzylmer ca. ptan, da-rgestellt aus x, x-Diehlorbenzylchlo- rid, wie es durch Chlorierung von Benzyl- chlorid erhÏltlich ist, in Gegenwart savu- ren Kondensationsmitteln behandelt. Das neue Kondensationsprodukt stellt nach dem Trocknen und Mahlen ein helles Pulver dar, das in Wasser löslich ist und schwerlösliche Blei-und Eisensalze bildet. PATENT CLAIM: Procedure. Ren for the representation of an erosion product that can be used for pest control, a tetrachlorobenzyl merca. ptals of benzaldehyde-o-sulfonic acid, characterized in that benzaldehyde-o-sulfonic acid with x, x-dichlorobenzylmer approx. ptane, made from x, x-dichlorobenzyl chloride, as obtainable by chlorination of benzyl chloride is treated in the presence of savory condensation agents. After drying and grinding, the new condensation product is a pale powder that is soluble in water and forms poorly soluble lead and iron salts.
CH196876D 1936-11-25 1936-11-25 Process for the preparation of a condensation product which can be used for pest control. CH196876A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH196876T 1936-11-25
CH193611T 1939-03-08

Publications (1)

Publication Number Publication Date
CH196876A true CH196876A (en) 1938-03-31

Family

ID=25722525

Family Applications (1)

Application Number Title Priority Date Filing Date
CH196876D CH196876A (en) 1936-11-25 1936-11-25 Process for the preparation of a condensation product which can be used for pest control.

Country Status (1)

Country Link
CH (1) CH196876A (en)

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