DE1063157B - Process for the preparation of thiophosphoric acid esters - Google Patents

Process for the preparation of thiophosphoric acid esters

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Publication number
DE1063157B
DE1063157B DEF26848A DEF0026848A DE1063157B DE 1063157 B DE1063157 B DE 1063157B DE F26848 A DEF26848 A DE F26848A DE F0026848 A DEF0026848 A DE F0026848A DE 1063157 B DE1063157 B DE 1063157B
Authority
DE
Germany
Prior art keywords
acid esters
preparation
thiophosphoric acid
ester
toxicity
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.)
Pending
Application number
DEF26848A
Other languages
German (de)
Inventor
Dr Ernst Schegk
Dr H C Gerhard Schrader Dr
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.)
Bayer AG
Original Assignee
Bayer 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 Bayer AG filed Critical Bayer AG
Priority to DEF26848A priority Critical patent/DE1063157B/en
Publication of DE1063157B publication Critical patent/DE1063157B/en
Pending legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07FACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F9/00Compounds containing elements of Groups 5 or 15 of the Periodic Table
    • C07F9/02Phosphorus compounds
    • C07F9/06Phosphorus compounds without P—C bonds
    • C07F9/16Esters of thiophosphoric acids or thiophosphorous acids
    • C07F9/165Esters of thiophosphoric acids
    • C07F9/1651Esters of thiophosphoric acids with hydroxyalkyl compounds with further substituents on alkyl

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)

Description

Verfahren zur Herstellung von Thiophosphorsäureestern 0,0-Dialkylthio- bzw. -dithiophosphorsäureester, in denen der am Schwefel befindliche Esterrest ein Acylphenylrest, z. B. der Acetophenylrest, ist, sind bisher aus der Literatur nicht bekannt.Process for the preparation of thiophosphoric acid esters 0,0-dialkylthio- or -dithiophosphoric acid esters, in which the ester residue located on the sulfur is a Acylphenyl radical, e.g. B. the acetophenyl radical, are not yet from the literature known.

Es wurde gefunden, daß man zu dieser Gruppe sehr wirksamer Thiophosphor- bzw. Dithiophosphorsäureester gelangen kann, wenn man entsprechende Acylphenylmercaptomethylhalegenide mit Salzen von 0,0-Dialkylthio- bzw. -dithiophosphorsäureestern umsetzt. Diese Umsetzung wird bevorzugt bei Raumtemperatur bzw. leicht erhöhter Temperatur und in Gegenwart inerter Lösungs- bzw. Verdünnungsmittel durchgeführt.It has been found that this group of very effective thiophosphorus or dithiophosphoric acid ester can arrive if one uses corresponding acylphenylmercaptomethylhalegenide with salts of 0,0-dialkylthio- or dithiophosphoric acid esters. This implementation is preferred at room temperature or slightly elevated temperature and in the presence inert solvent or diluent carried out.

Die Anwendung der neuen Verbindungen geschieht in prinzipiell bekannter Weise, nämlich in Kombination mit festen oder flüssigen Streck- oder Verdünnungsmitteln. Als solche Streckmittel haben sich vor allem Kreide, Talkum, Bentonite und Kieselgur bewährt. Falls flüssige Kombinationen angewandt werden sollen, bestehen diese vorzugsweise aus wäßrigen Emulsionen, die unter Mitverwendung geeigneter Lösungshilfsmittel und handelsüblicher Emulgatoren leicht aus den vorstehenden Verbindungen hergestellt werden können.The new compounds are used in a manner that is known in principle Way, namely in combination with solid or liquid extenders or diluents. Chalk, talc, bentonite and kieselguhr have proven to be the most common such extenders proven. If liquid combinations are to be used, these preferably exist from aqueous emulsions, with the use of suitable solubilizers and commercially available emulsifiers are easily made from the above compounds can be.

Gegenüber den aus der deutschen Patentschrift 957 213 bekannten Thiophosphorsäureestem zeichnen sich die erfindungsgemäß erhältlichen Verbindungen durch eine bessere Wirksamkeit gegen Fliegenmaden bei gleichzeitig geringerer Toxizität gegen Warmblüter aus, wie aus der nachfolgenden Tabelle ersichtlich ist.Compared to the thiophosphoric acid esters known from German patent specification 957 213 the compounds obtainable according to the invention are distinguished by a better effectiveness against fly maggots with lower toxicity against warm-blooded animals, such as can be seen in the table below.

Verglichen wurden der verfahrensgemäß erhältliche Ester der Formel (I) und der aus der deutschen Patentschrift 957 213 bekannte Ester der Formel (II) Toxizität Ratte per 1)s I II DL b1) . . . . . . . . . . . . 250 mg/kg 50 mg/kg Fliegenmaden (Aedes aegypti) ... 0,011)/1) 1001)/1) 0,11)[, 801)/a 0,011)/1) 0 Aus den folgenden Beispielen ist die Herstellung der neuen Verbindungen zu ersehen: Beispiel 1 Zu einer Lösung von 55 g 0,0-diäthylthiolphosphorsaurem Ammonium in 100 ccm Aceton läßt man bei 50'C eine Lösung aus 41 g Chlormethyl-p-acetophenyl-sulfid (F.= 64°C) in 40 ccm Aceton tropfen. Dann wird 3 Stunden lang auf dem siedenden Wasserbad erhitzt, mit Methylenchlorid verdünnt, das abgeschiedene Salz abfiltriert und das Filtrat zweimal mit Wasser ausgeschüttelt. Nach dem Trocknen über Natriumsulfat wird das Lösemittel im Vakuum entfernt und das zurückbleibende Öl im Hochvakuum unter einem Druck von 0,01 mm Quecksilbersäule und einer Badtemperatur von 160°C andestilliert. Der neue Ester wird in Form eines gelben Öles erhalten.The ester of the formula (I) obtainable according to the process was compared and the ester of the formula (II) known from German patent specification 957 213 Toxicity rat per 1) s I II DL b1). . . . . . . . . . . . 250 mg / kg 50 mg / kg Fly maggots (Aedes aegypti) ... 0.011) / 1) 1001) / 1) 0.11) [, 801) / a 0.011) / 1) 0 The preparation of the new compounds can be seen from the following examples: Example 1 To a solution of 55 g 0,0-diäthylthiolphosphorsaurem ammonium in 100 cc of acetone is allowed to drip into 40 cc of acetone, a solution of 41 g of chloromethyl p-acetophenyl sulfide (F. = 64 ° C) at 50'C. The mixture is then heated for 3 hours on the boiling water bath, diluted with methylene chloride, the deposited salt is filtered off and the filtrate is extracted twice with water. After drying over sodium sulfate, the solvent is removed in vacuo and the remaining oil is distilled off in a high vacuum under a pressure of 0.01 mm of mercury and a bath temperature of 160.degree. The new ester is obtained in the form of a yellow oil.

Ausbeute: 64 g, entsprechend 951)%1) der Theorie. Toxizität: Ratte per 1)s DL51) 25 mg/kg.Yield: 64 g, corresponding to 951)% 1) of theory. Toxicity: rat per 1) s DL51) 25 mg / kg.

Spinnmilben werden mit 0,011)/1)iger Lösung 1001)/1)ig abgetötet. Beispiel 2 Dieser neue Ester wird erhalten, wenn man 60g 0,0-diäthylthionothiolphosphorsaures Ammonium in Aceton mit 41 g Chlormethyl-p-acetophenyl-sulfid (F. = 64°C) in Aceton analog dem Beispiel l umsetzt und wie dort angegeben aufarbeitet.Spider mites are killed with 0.011) / 1) iger solution 1001) / 1) ig. Example 2 This new ester is obtained if 60 g of ammonium 0,0-diethylthionothiolphosphoric acid are reacted in acetone with 41 g of chloromethyl-p-acetophenyl sulfide (mp = 64 ° C.) in acetone analogously to Example 1 and worked up as indicated there.

Ausbeute: 70g, entsprechend 99°/o der Theorie. Toxizität: Ratte per os DL" 250 mg/kg. Spinnmilben werden mit 0,01 °/jgen Lösungen sicher abgetötet. Beispiel 3 LäBt man 44 g 0,0-dimethylthionothiolphosphorsaures Ammonium mit 40 g Chlormethyl-p-acetophenyl-sulfid (F. = 64°C) nach der im Beispiel 1 erläuterten Methode reagieren, so erhält man nach der dort angegebenen Aufarbeitung 55 g des neuen Esters (entsprechend 85 % der Theorie) in Form eines hellgelben Öles.Yield: 70 g, corresponding to 99% of theory. Toxicity: rat per os DL "250 mg / kg. Spider mites are safely killed with 0.01% / yg solutions. Example 3 If 44 g of ammonium 0,0-dimethylthionothiolphosphoric acid are allowed to react with 40 g of chloromethyl-p-acetophenyl sulfide (mp = 64 ° C.) by the method explained in Example 1, 55 g of the new ester are obtained after the work-up indicated there (corresponding to 85 % of theory) in the form of a light yellow oil.

Toxizität: Ratte per os DL" 1000 mg/kg.Toxicity: rat per os DL "1000 mg / kg.

Fliegen werden mit 0,1 °; oigen Lösungen zu 1000/, abgetötet.Flies are 0.1 °; oigen solutions to 1000 /, killed.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung von Thiophosphorsäureestern, dadurch gekennzeichnet, daB Acylphenylmercaptomethylhalogenide mit Salzen von O,O-Dialkylthio- bzw. -dithiophosphorsäuren umgesetzt werden. In Betracht gezogene Druckschriften: Deutsche Patentschrift hTr. 957 213.PATENT CLAIM: Process for the production of thiophosphoric acid esters, characterized in that acylphenyl mercaptomethyl halides with salts of O, O-dialkylthio- or -dithiophosphoric acids are implemented. Considered publications: German patent specification hTr. 957 213.
DEF26848A 1958-10-18 1958-10-18 Process for the preparation of thiophosphoric acid esters Pending DE1063157B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEF26848A DE1063157B (en) 1958-10-18 1958-10-18 Process for the preparation of thiophosphoric acid esters

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Application Number Priority Date Filing Date Title
DEF26848A DE1063157B (en) 1958-10-18 1958-10-18 Process for the preparation of thiophosphoric acid esters

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DE1063157B true DE1063157B (en) 1959-08-13

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1137006B (en) * 1960-02-18 1962-09-27 Geigy Ag J R Process for the preparation of the insecticidally active S-phenyl-mercaptomethyl-O, O-dimethyl-dithiophosphoric acid ester
DE1276638B (en) * 1965-04-09 1968-09-05 Basf Ag O, O-dialkyl-thionophosphoric acid ester

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE957213C (en) * 1954-06-10 1957-01-31 Geigy Ag J R Process for the preparation of new thiolthionophosphoric acid esters

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE957213C (en) * 1954-06-10 1957-01-31 Geigy Ag J R Process for the preparation of new thiolthionophosphoric acid esters

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1137006B (en) * 1960-02-18 1962-09-27 Geigy Ag J R Process for the preparation of the insecticidally active S-phenyl-mercaptomethyl-O, O-dimethyl-dithiophosphoric acid ester
DE1276638B (en) * 1965-04-09 1968-09-05 Basf Ag O, O-dialkyl-thionophosphoric acid ester

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