DE545740C - Means for pest control - Google Patents

Means for pest control

Info

Publication number
DE545740C
DE545740C DE1930545740D DE545740DD DE545740C DE 545740 C DE545740 C DE 545740C DE 1930545740 D DE1930545740 D DE 1930545740D DE 545740D D DE545740D D DE 545740DD DE 545740 C DE545740 C DE 545740C
Authority
DE
Germany
Prior art keywords
pest control
scn
carbon atom
acid esters
agents
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
DE1930545740D
Other languages
German (de)
Inventor
Dr Karl Goernitz
Dr Herbert Schotte
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schering Kahlbaum AG
Original Assignee
Schering Kahlbaum AG
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 Schering Kahlbaum AG filed Critical Schering Kahlbaum AG
Application granted granted Critical
Publication of DE545740C publication Critical patent/DE545740C/en
Expired legal-status Critical Current

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
    • A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
    • A01N47/40—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having a double or triple bond to nitrogen, e.g. cyanates, cyanamides
    • A01N47/48—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having a double or triple bond to nitrogen, e.g. cyanates, cyanamides containing —S—C≡N groups

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)
  • Thiazole And Isothizaole Compounds (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Description

Mittel zur Schädlingsbekämpfung Durch Patent- Sao 330 sind Mittel zur Schädlingsbekämpfung geschützt, die aus Thiocvansäureestern oder deren Derivaten bestehen, gegebenenfalls im Gemisch mit anderen insekticiden, fungiciden Haft- und Benetzungsmitteln.Agents for pest control The patent Sao 330 protects agents for pest control, which consist of thiocvanic acid esters or their derivatives, possibly mixed with other insecticidal, fungicidal adhesives and wetting agents.

Es wurde gefunden, daß Thiocyansäureester, die an einem Kohlenstoffatom 2 Thiöcyansäuregruppen tragen, noch wirksamer sind als die im Hauptpatent geschützten einfachen Rhodanide. Diese Dirhodanide haben -zudem den Vorzug, daß sie auch bei sehr empfindlichen Pflanzen nicht die geringsten Schädigungen hervorrufen. Derartige Thiocvansäureester werden erhalten durch Umsetzen der entsprechenden Dihalogenide mit 31kalirhodaniden. So erhält man z. B. aus Methylenchlorid und Rhodankalium das entsprechende Metliylenrhodanid CH. (SCN)_, iihnlich die entsprechenden Homologen, z. B. :'\thv lidenrhodanid CH, CH (SCN)_, ferner analog aus Benzalchlorid das Benzalrhodanid C8 H5 CH (SCN)_ oder aus m-Cyanbenza1-chlorid das m-Cyanbenzalrhodanid CNTCIH4CH (SCN)2 und aus Picolindichlorid C5 H4 N C.HC12 das Picolindirhodanid C5H,N CH(SCN)2.It has been found that thiocyanic acid esters attached to one carbon atom 2 carry thioecyanic acid groups, are even more effective than those protected in the main patent simple rhodanide. These dirhodanides also have the advantage that they are also used in very sensitive plants do not cause the slightest damage. Such Thiocvanic acid esters are obtained by reacting the corresponding dihalides with 31kalirhodaniden. So you get z. B. from methylene chloride and potassium rhodium corresponding methylene rhodanide CH. (SCN) _, similar to the corresponding homologues, z. B.: '\ thv lidenrhodanid CH, CH (SCN) _, furthermore, analogously from benzal chloride, benzal rhodanide C8 H5 CH (SCN) _ or from m-Cyanbenza1-chloride the m-Cyanbenzalrhodanid CNTCIH4CH (SCN) 2 and from picoline dichloride C5 H4 N C.HC12 the picoline dirhodanide C5H, N CH (SCN) 2.

Diese Dirhodanide eben z. B. in i- bis S°1aiger Dispersion in Türkischrotöl sehr gute Spritzmittel und in Mischung mit pulverförmigen Stoffen, wie Talkum, Flugasche, oder calciumarsenhaltigeri Pulvern, sehr gute Streumittel, die bei hoher Wirksamkeit keine Pflanzenschädigungen hervori#ufen.These dirhodanides z. B. in i- to S ° 1aiger dispersion in Turkish red oil very good sprays and mixed with powdery substances such as talc, fly ash, or powders containing calcium arsenic, very good scattering agents that are highly effective do not cause any damage to plants.

Die Verwendung von Dirhodaniden, welche Rhodanester an verschiedenen Kohlenstoffatomen des Moleküls tragen, als Schädlingsbekämpfungsmittel ist bereits bekannt. Gegenüber diesen Dirhodaniden zeichnen sich die Dirhodanide, die beide Rhodanreste an -einem Kohlenstoffatom tragen, durch erheblich stärkere Wirksamkeit aus.The use of dirhodanides, which rhodan esters at various Carbon atoms of the molecule carry, as a pesticide is already known. Opposite these dirhodanids stand out the dirhodanids, both of them Carry rhodan residues on a carbon atom, due to their considerably greater effectiveness the end.

So tötet das i-Methoxy-3-chlor-4, 6-xylyldirhodanid als pulverförmiges Streumittel mit einem Gehalt von a % an wirksamer Substanz von ioo Blattläusen 17, wenn auf das C)uadratzent'imeter -@Blattöberfläche o,i6mg des fertigen Streumittels angewendet werden.So kills i-methoxy-3-chloro-4, 6-xylyldirhodanid as a powder Litter containing a% of the active substance of 100 aphids 17, when on that C) square centimeter - @ leaf surface 0.16 mg of the finished Be used as spreading material.

Das m-Chlorbenzalrhodanid mit zwei Rhodanresten an einem Kohlenstoffatom dagegen tötet, irr derselben Konzentration und in demselben Mengenverhältnis angewendet, von ioo Blattläusen 55.The m-chlorobenzalrhodanide with two rhodan residues on one carbon atom on the other hand kills, applied in the same concentration and in the same proportions, of ioo aphids 55.

Claims (1)

PATENTANSPRUCH: Mittel zur Schädlingsbekämpfung nach Patent 520 330, bestehend aus Thiocyansäureestern oder Derivaten, die an einem Kohlenstoffatom zwei Thiocyansäurereste tragen. PATENT CLAIM: Agent for pest control according to patent 520 330, consisting of thiocyanic acid esters or derivatives that have two thiocyanic acid residues on one carbon atom.
DE1930545740D 1930-10-22 1930-10-22 Means for pest control Expired DE545740C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE545740T 1930-10-22

Publications (1)

Publication Number Publication Date
DE545740C true DE545740C (en) 1932-03-04

Family

ID=6560904

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1930545740D Expired DE545740C (en) 1930-10-22 1930-10-22 Means for pest control

Country Status (1)

Country Link
DE (1) DE545740C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3252855A (en) * 1965-08-10 1966-05-24 American Cyanamid Co Method of controlling algal growth
US3300375A (en) * 1965-08-10 1967-01-24 American Cyanamid Co Process water treatment and method of controlling sulfate-reducing bacteria
US3306810A (en) * 1964-06-08 1967-02-28 Buckman Labor Inc Compositions containing methylene bisthiocyanate, dispersant and a dimethylamide and processes of inhibiting microbiological deterioration utilizing said composition

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3306810A (en) * 1964-06-08 1967-02-28 Buckman Labor Inc Compositions containing methylene bisthiocyanate, dispersant and a dimethylamide and processes of inhibiting microbiological deterioration utilizing said composition
US3252855A (en) * 1965-08-10 1966-05-24 American Cyanamid Co Method of controlling algal growth
US3300375A (en) * 1965-08-10 1967-01-24 American Cyanamid Co Process water treatment and method of controlling sulfate-reducing bacteria

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