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DE871448C - Process for the preparation of esters of monothiophosphoric acid - Google Patents

Process for the preparation of esters of monothiophosphoric acid

Info

Publication number
DE871448C
DE871448C DEF6869A DEF0006869A DE871448C DE 871448 C DE871448 C DE 871448C DE F6869 A DEF6869 A DE F6869A DE F0006869 A DEF0006869 A DE F0006869A DE 871448 C DE871448 C DE 871448C
Authority
DE
Germany
Prior art keywords
esters
preparation
monothiophosphoric acid
monothiophosphoric
solution
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
DEF6869A
Other languages
German (de)
Inventor
Walter Dr Lorenz
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 DEF6869A priority Critical patent/DE871448C/en
Application granted granted Critical
Publication of DE871448C publication Critical patent/DE871448C/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • A01N57/00Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds
    • A01N57/10Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds having phosphorus-to-oxygen bonds or phosphorus-to-sulfur bonds
    • A01N57/12Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds having phosphorus-to-oxygen bonds or phosphorus-to-sulfur bonds containing acyclic or cycloaliphatic radicals
    • 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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  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Dentistry (AREA)
  • Engineering & Computer Science (AREA)
  • Plant Pathology (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Pest Control & Pesticides (AREA)
  • Biochemistry (AREA)
  • Molecular Biology (AREA)
  • Agronomy & Crop Science (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Description

Es wurde gefunden, daß sich Alkylsulfonäthylschwefelchloride mit Dialkylphosphiten in glatter Reaktion zu S-Alkylsulfonäthylestern der Monothiophosphorsäure umsetzen lassen. Die Reaktion verläuft nach folgender Gleichung:It has been found that alkylsulfonethylsulfur chlorides are more smooth with dialkyl phosphites Reaction to S-alkylsulfonethyl esters of monothiophosphoric acid have it implemented. The reaction proceeds according to the following equation:

R1-SO2-CH2-CH2-S-Cl + HO-PR 1 -SO 2 -CH 2 -CH 2 -S-Cl + HO-P

OR,OR,

OR3 OR 3

t' ■ v^ -ti2 t ' ■ v ^ -ti2

/OR2
\
/ OR 2
\

R1, R2 und R3 können für beliebige Alkylreste stehen. Die Umsetzung wird zweckmäßig in einem inerten Lösungsmittel, z. B. Toluol, Benzol und Tetrachlorkohlenstoff, bei Temperaturen von 30 bis 50° vorgenommen. R 1 , R 2 and R 3 can represent any alkyl radicals. The reaction is expediently carried out in an inert solvent, e.g. B. toluene, benzene and carbon tetrachloride, made at temperatures of 30 to 50 °.

Die neuen Verbindungen sind hellgelbe, wasserunlösliche Öle, die auch im Hochvakuum nicht unzersetzt destillierbar sind. Sie zeichnen sich durch sehr starke insektizide Wirkungen aus. Es wirkt z. B. der S-Methylsulfonäthylester der 0, o-Diäthyl-monothiophosphorsäure noch in 0,005 °/„iger Verdünnung als Spritzmittel sicher abtötend auf grüne Apfelblattläuse. Ein 2°/oiger Staub des S-Äthylsulfonäthylesters der 0, o-Diäthyl-monothiophosphorsäure wirkt nach einigen Stunden sicher abtötend bei Kartoffelkäfern und Kartoffelkäferlarven, Blattläusen, Ameisen, Küchenschaben, Kornkäfern und der roten Spinne. Folgende Beispiele mögen die Art der Erfindung klarstellen :The new compounds are light yellow, water-insoluble oils that cannot be distilled without decomposition, even in a high vacuum. They are characterized by very strong insecticidal effects. It acts z. B. the S-methylsulfonethyl ester of 0, o-diethyl-monothiophosphoric acid still in 0.005% dilution as a spray reliably kills green apple aphids. A 2 ° / o sulfuric dust of the S-Äthylsulfonäthylesters of 0, o-diethyl-monothiophosphoric acts after a few hours sure abtötend in potato beetles and Colorado potato beetle larvae, aphids, ants, cockroaches, grain beetles and red spider. The following examples may clarify the nature of the invention:

Beispiel 1example 1

56 g Di-(methylsulfonäthyl)-disulfid vom F. 1500, aus Methylsulfonäthylchlorid und Natriumdisulfid, werden in 400 ecm Methylenchlorid gelöst. Bei 20°56 g of di (methylsulfonethyl) disulfide with a melting point of 150 0 , from methylsulfonethyl chloride and sodium disulfide, are dissolved in 400 ecm of methylene chloride. At 20 °

beginnend leitet man 15 ~g Chlor ein. Die Lösung färbt sich unter Erwärmung auf etwa 35° gelborange; Anschließend tropft man 60 g Diäthylphosphit zu und hält dabei die Temperatur auf 35 bis'40°. Nach dem· Eintropfen läßt man 1Z2 Stunde nachrühren. Die benzolische Lösung wäscht man mit Wasser, dann mit Natriumbicarbonatlösung und trocknet sie über* wasserfreiem-Natriumsulfat. Nach Abdestülieren des Lösungsmittels erhält man den S-Methylsulfonäthylester des Monothiophosphorsäure-o, o-diäthylesters in einer Ausbeute von 95 0Z0 der Theorie (108 g) als schwachgelbes, etwas wasserlösliches Öl. Der Ester ist nicht destillierbar.starting with 15 g of chlorine. The solution turns yellow-orange when heated to about 35 °; Then 60 g of diethyl phosphite are added dropwise while keeping the temperature at 35 ° to 40 °. After the dropwise addition, the mixture is allowed to stir for 1 second for 2 hours. The benzene solution is washed with water, then with sodium bicarbonate solution and dried over anhydrous sodium sulfate. After Abdestülieren the solvent, the theory to obtain the S-Methylsulfonäthylester of monothiophosphoric-o, o-diäthylesters in a yield of 95 0 Z 0 (108 g) as a pale yellow, slightly water-soluble oil. The ester cannot be distilled.

Beispiel 2Example 2

61 g Di-(äthylsulfonäthyl)-disulfid vom F. 95°, aus Äthylsulfonäthylchlorid und Natriumdisulnd, werden in 400 ecm Benzol suspendiert. Bei 200 beginnend leitet man 15 g Chlor ein. Die Lösung färbt sich gelborange, die Temperatur steigt langsam auf 350. Zu der benzolischen Lösung des Äthylsulfonäthylsulfenchlorids tropft man unter Kühlen bei 35 bis 400 60 g Diäthylphosphit und rührt nach dem Eintropfen 1J2 Stunde nach. Die Lösung wird zunächst mit Wasser spater mit Natriumbicarbonatlösung gewaschen und über wasserfreiem Natriumsulfat getrocknet. Nach Abdestülieren des Lösungsmittels erhält man 110 g (95 °/o der Theorie) des S-Äthylsulfonäthylesters des Monothiophosphorsäüre-Q, o-diäthylesters. Es ist ein hellgelbes, etwas wasserlösliches Öl, das nicht destilliert werden kann.61 g of di- (äthylsulfonäthyl) disulfide with a melting point of 95 °, from ethylsulfonethyl chloride and sodium disulfide, are suspended in 400 ecm of benzene. Starting at 20 0 , 15 g of chlorine are introduced. The solution turns yellow-orange, the temperature rises slowly to 35 ° . To the benzene solution of the Äthylsulfonäthylsulfenchlorids added dropwise under cooling at 35 to 40 0 60 g of diethyl phosphite and stirred after the dropping 1 J 2 hours after. The solution is first washed with water, later with sodium bicarbonate solution and dried over anhydrous sodium sulfate. After the solvent has been distilled off, 110 g (95% of theory) of the S-ethylsulfonethyl ester of monothiophosphoric acid-Q, o-diethyl ester are obtained. It is a light yellow, somewhat water-soluble oil that cannot be distilled.

Claims (1)

PATENTANSPRUCH:PATENT CLAIM: Verfahren zur Herstellung von Estern der Monothiophosphorsäure, dadurch gekennzeichnet, daß man Alkylsulfonäthylschwefelchloride mit Dialkylphosphiten umsetzt.Process for the preparation of esters of monothiophosphoric acid, characterized in that one alkylsulfonethylsulfur chlorides with dialkyl phosphites implements. 1 5798 3.531 5798 3.53
DEF6869A 1951-07-31 1951-07-31 Process for the preparation of esters of monothiophosphoric acid Expired DE871448C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEF6869A DE871448C (en) 1951-07-31 1951-07-31 Process for the preparation of esters of monothiophosphoric acid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF6869A DE871448C (en) 1951-07-31 1951-07-31 Process for the preparation of esters of monothiophosphoric acid

Publications (1)

Publication Number Publication Date
DE871448C true DE871448C (en) 1953-03-23

Family

ID=7085176

Family Applications (1)

Application Number Title Priority Date Filing Date
DEF6869A Expired DE871448C (en) 1951-07-31 1951-07-31 Process for the preparation of esters of monothiophosphoric acid

Country Status (1)

Country Link
DE (1) DE871448C (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2791599A (en) * 1952-12-31 1957-05-07 Pest Control Ltd O, o'-dialkyl s (alkyl sulfoxyethyl) phosphorothiolates as pesticides
DE964045C (en) * 1955-05-14 1957-05-16 Bayer Ag Process for the preparation of thiophosphoric acid esters
DE1083808B (en) * 1957-06-05 1960-06-23 Bayer Ag Process for the preparation of thiophosphoric acid esters
US2963505A (en) * 1954-11-06 1960-12-06 Bayer Ag Sulphoxides-containing esters of the phosphoric and thiophosphoric acids

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2791599A (en) * 1952-12-31 1957-05-07 Pest Control Ltd O, o'-dialkyl s (alkyl sulfoxyethyl) phosphorothiolates as pesticides
US2963505A (en) * 1954-11-06 1960-12-06 Bayer Ag Sulphoxides-containing esters of the phosphoric and thiophosphoric acids
DE964045C (en) * 1955-05-14 1957-05-16 Bayer Ag Process for the preparation of thiophosphoric acid esters
DE1083808B (en) * 1957-06-05 1960-06-23 Bayer Ag Process for the preparation of thiophosphoric acid esters

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