DE1040542B - Process for the preparation of thionophosphoric acid esters - Google Patents

Process for the preparation of thionophosphoric acid esters

Info

Publication number
DE1040542B
DE1040542B DEF21904A DEF0021904A DE1040542B DE 1040542 B DE1040542 B DE 1040542B DE F21904 A DEF21904 A DE F21904A DE F0021904 A DEF0021904 A DE F0021904A DE 1040542 B DE1040542 B DE 1040542B
Authority
DE
Germany
Prior art keywords
killed
concentration
preparation
acid esters
acid
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
DEF21904A
Other languages
German (de)
Inventor
Dr Gerhard Schrader
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
Priority to BE562442D priority Critical patent/BE562442A/xx
Priority to NL97805D priority patent/NL97805C/xx
Application filed by Bayer AG filed Critical Bayer AG
Priority to DEF21904A priority patent/DE1040542B/en
Priority to DEF23319A priority patent/DE1046034B/en
Priority to CH5277457A priority patent/CH368157A/en
Priority to CH294563A priority patent/CH374650A/en
Priority to FR1190076D priority patent/FR1190076A/en
Priority to GB3840657A priority patent/GB822476A/en
Publication of DE1040542B publication Critical patent/DE1040542B/en
Pending legal-status Critical Current

Links

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
    • C07F9/1658Esters of thiopolyphosphoric acids or anhydrides
    • 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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Pest Control & Pesticides (AREA)
  • Molecular Biology (AREA)
  • Agronomy & Crop Science (AREA)
  • Biochemistry (AREA)
  • Plant Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Dentistry (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Description

Thionophosphorsäuieester, in denen die Reste zweier Dialkylthionophosphorsäuren über die Sulfoxydgruppe miteinander verknüpft sind, sind bisher nicht bekanntgeworden. Thionophosphoric acid esters, in which the residues of two Dialkylthionophosphoric acids are linked to one another via the sulfoxide group, have not yet become known.

Es wurde nun gefunden, daß diese Stoffklasse aus 0,0-Dialkyldithiophosphorsäure-disulnden folgender allgemeinen Formel:It has now been found that this class of substances consists of 0,0-dialkyldithiophosphoric acid disulndants of the following general Formula:

RO,RO,

RORO

P —S —S —P'P —S —S —P '

OROR

OROR

Verfahren zur Herstellung von ThionophosphorsäureesternProcess for the preparation of thionophosphoric acid esters

Anmelder:Applicant:

Farbenfabriken Bayer Aktiengesellschaft, Leverkusen-BayerwerkPaint factories Bayer Aktiengesellschaft, Leverkusen-Bayerwerk

Dr. Gerhard Schrader, Wuppertal-Cronenberg, ist als Erfinder genannt wordenDr. Gerhard Schrader, Wuppertal-Cronenberg, has been named as the inventor

(vgl. USA.-Patentschrift 2 705 694; R = vorzugsweise (See U.S. Patent 2,705,694; R = preferably

niedrigmolekularen Alkylrest) leicht zugänglich ist, wenn » die Oxydation so durchgeführt wird, daß ein Schwefelatom eliminiert wird und der verbleibende Brücken- oder Verdünnungsmitteln gemischt, zur Anwendung schwefel zum Sulfoxyd oxydiert wird, wie aus folgendem ao gelangt.
Formelschema ersichtlich ist: SS
low molecular weight alkyl radical) is easily accessible if the oxidation is carried out in such a way that a sulfur atom is eliminated and the remaining bridging or diluent is mixed, sulfur is oxidized to the sulfoxide for use, as can be seen from the following ao.
Formula scheme can be seen: SS

C9ELO.C 9 ELO.

,p—so — p;, p — so - p;

RORO S
ti
S.
ti
— S- S. S
[|
S.
[|
OROR
— P-.- P-. R0y R0 y OROR

C9ILOC 9 ILO

H2O2 C,H,0H 2 O 2 C, H, O

S SS S

;p s s ρ; p s s ρ

,OC2H5 , OC 2 H 5

OC2H5 OC 2 H 5

-OC2H5 -OC 2 H 5

RORO

RORO

OR äH50OR ä H 5 0

p—so—p:p — so — p:

+ S + H2O Insektizide Wirksamkeit + S + H 2 O insecticidal effectiveness

1OR 1 OR

Vorteilhaft wird dabei die Oxydation der Disulfide mit Wasserstoffsuperoxyd in geeigneten Lösemitteln in schwach saurem Medium bei Temperaturen von 40 bis 70° C durchgeführt. Bewährt hat sich als Lösemittel vor allem Eisessig. Es können aber auch Kohlenwasserstoffe als Lösemittel verwendet werden, wenn z. B. in Gegenwart geringer Mengen Schwefelsäure diese Reaktion durchgeführt wird.The oxidation of the disulfides with hydrogen peroxide in suitable solvents in carried out in a weakly acidic medium at temperatures of 40 to 70 ° C. Has proven itself as a solvent especially glacial acetic acid. However, hydrocarbons can also be used as solvents if, for. Am In the presence of small amounts of sulfuric acid this reaction is carried out.

Während die als Ausgangsmaterialien benötigten Disulfide praktisch keine kontaktinsektiziden Wirkungen zeigen, zeichnen sich die neuen Sulfoxyde durch gute kontaktinsektizide und zum Teil auch systemische Wirkungen aus (vgl. nachstehende Tabelle). Fliegen und Raupen z. B. können mit der erfindungsgemäßen Verbindung wirkungsvoll bekämpft werden, wobei die neue Stoffklasse vorzugsweise in der für Phosphorinsektizide bekannten Art und Weise, d. h. mit üblichen Streck-While the disulfides required as starting materials have practically no contact insecticidal effects show, the new sulfoxides are characterized by good contact insecticides and in some cases also systemic Effects (see table below). Flies and caterpillars z. B. can with the compound of the invention can be effectively combated, the new substance class preferably in the one for phosphorus insecticides known way, d. H. with the usual stretching

Fliegen 0,001 %Flying 0.001%

Blattläuse 0,001 %Aphids 0.001%

Spinnmilben 0,001 %Spider mites 0.001%

Küchenschaben 0,001 %Cockroaches 0.001%

100% 80% 50% 40%100% 80% 50% 40%

0,01% 0,01% 0,01% 0,1 %0.01% 0.01% 0.01% 0.1%

0%0%

0%0%

50%50%

0%0%

C9H=OC 9 H = O

C2H5OC 2 H 5 O

Beispielexample

P —SO —P,P —SO —P,

OC2H5 OC 2 H 5

OC9H5 OC 9 H 5

74 g 0,0,0,0-Tetraäthylthionophosphorsäuredisulfid löst man in 100 ecm Eisessig unter Zugabe von 1 ecm 50%iger Schwefelsäure. Bei 40° C tropft man dann unter Rühren 27 ecm Wasserstoffsupeioxyd (37,5%ig) zu. Die Reaktion verläuft untei Selbsterwärmung. Nachdem die Reaktionswärme abgeklungen ist, hält man die Temperatur noch 1 Stunde bei 40° C, nimmt dann das Rohprodukt in 200 ecm Benzol auf und wäscht die Benzolschicht mit einer 3%igen Bikarbonatlösung. Nach74 g of 0,0,0,0-tetraethylthionophosphoric acid disulfide are dissolved in 100 ecm of glacial acetic acid with the addition of 1 ecm 50% sulfuric acid. At 40 ° C, 27 ecm of hydrogen peroxide (37.5%) are then added dropwise with stirring. to. The reaction is self-heating. After the heat of reaction has subsided, the temperature is kept at 40 ° C for 1 hour, then this is taken Crude product in 200 ecm benzene and washes the benzene layer with a 3% bicarbonate solution. To

809 657/465809 657/465

Claims (1)

dem Trocknen über Natriumsulfat wird das Lösemittel abdestilliert. Das zurückbleibende rohe Sulfoxyd destilliert bei einem Druck von 0,01 mm Quecksilbersäule bei 120 bis 122° C.the solvent is distilled off after drying over sodium sulfate. The remaining crude sulfoxide is distilled at a pressure of 0.01 mm of mercury at 120 to 122 ° C. Analyse für ein Molgewicht von 354:Analysis for a molecular weight of 354: Berechnet S 27,2 ·>/„, P 17,6 °/0;Calculated S 27.2 ·> / ", P 17.6 ° / 0 ; gefunden S 26,6°/0, P 18,4°/0.found S 26.6 ° / 0 , P 18.4 ° / 0 . DL50 Ratte per os 10 mg/kg.DL 50 rat orally 10 mg / kg. Fliegenmaden werden mit wäßrigen Emulsionen, die 0,001 °/0 der Wirksubstanz enthalten, noch abgetötet. Stechmücken werden in 160 Minuten bei einer Konzentration von 0,01 0Z0 10O0Z0Ig abgetötet. Bei einer Konzentration von 0,1 °/0 werden Raupen noch mit Sicherheit abgetötet. Fliegen werden noch in einer Konzentration von 0,001 0Z0 sicher abgetötet. Gegen Spinnmilben wirkt das neue Präparat in einer Konzentration von 0,10Z0 100°/0ig abtötend.Maggots are not killed with aqueous emulsions containing 0.001 ° / 0 of the active substance. Mosquitoes are killed in 160 minutes at a concentration of 0.01 0 Z 0 10O 0 Z 0 Ig. At a concentration of 0.1 ° / 0 caterpillars are killed more safely. Flies are safely killed at a concentration of 0.001 0 Z 0. Against spider mites, the new preparation acts ig abtötend in a concentration of 0.1 0 0 Z 100 ° / 0th P Λ TE N T Λ NSPRCC H.P Λ TE N T Λ NSPRCC H. Verfahren zur Herstellung von Thionophosphorsäureestern, dadurch gekennzeichnet, daß 0,0,0,0-Tetraalkylthionophosphorsäuredisulfide unter Eliminierung eines Disulfidschwefels durch Oxydation mit H2O2 in saurem Medium zu entsprechenden Sulfoxyden oxydiert werden.Process for the preparation of thionophosphoric acid esters, characterized in that 0,0,0,0-tetraalkylthionophosphoric acid disulfides are oxidized to corresponding sulfoxides by elimination of a disulfide sulfur by oxidation with H 2 O 2 in an acid medium. © !09 657/465 9. 58©! 09 657/465 9. 58
DEF21904A 1956-12-11 1956-12-11 Process for the preparation of thionophosphoric acid esters Pending DE1040542B (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
BE562442D BE562442A (en) 1956-12-11
NL97805D NL97805C (en) 1956-12-11
DEF21904A DE1040542B (en) 1956-12-11 1956-12-11 Process for the preparation of thionophosphoric acid esters
DEF23319A DE1046034B (en) 1956-12-11 1957-06-24 Process for the preparation of thionophosphoric acid esters
CH5277457A CH368157A (en) 1956-12-11 1957-11-18 Process for the preparation of thionophosphoric acid esters
CH294563A CH374650A (en) 1956-12-11 1957-11-18 Process for the preparation of thionophosphoric acid esters
FR1190076D FR1190076A (en) 1956-12-11 1957-11-19 Thionophosphoric esters and their production process
GB3840657A GB822476A (en) 1956-12-11 1957-12-10 Thionophosphoric acid esters and a process for their production

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEF21904A DE1040542B (en) 1956-12-11 1956-12-11 Process for the preparation of thionophosphoric acid esters
DEF23319A DE1046034B (en) 1956-12-11 1957-06-24 Process for the preparation of thionophosphoric acid esters

Publications (1)

Publication Number Publication Date
DE1040542B true DE1040542B (en) 1958-10-09

Family

ID=25974004

Family Applications (2)

Application Number Title Priority Date Filing Date
DEF21904A Pending DE1040542B (en) 1956-12-11 1956-12-11 Process for the preparation of thionophosphoric acid esters
DEF23319A Pending DE1046034B (en) 1956-12-11 1957-06-24 Process for the preparation of thionophosphoric acid esters

Family Applications After (1)

Application Number Title Priority Date Filing Date
DEF23319A Pending DE1046034B (en) 1956-12-11 1957-06-24 Process for the preparation of thionophosphoric acid esters

Country Status (6)

Country Link
BE (1) BE562442A (en)
CH (2) CH374650A (en)
DE (2) DE1040542B (en)
FR (1) FR1190076A (en)
GB (1) GB822476A (en)
NL (1) NL97805C (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1188859B (en) * 1960-12-10 1965-03-11 Basf Ag Preparations for the control of insects
NL135594C (en) * 1961-06-06

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE820001C (en) * 1949-09-07 1951-11-08 Bayer Ag Process for the preparation of thiopyrophosphoric acid esters
US2705694A (en) * 1952-06-24 1955-04-05 Exxon Research Engineering Co Insecticidal compositions comprising diethyl thiophosphoric acid disulfide

Also Published As

Publication number Publication date
FR1190076A (en) 1959-10-09
DE1046034B (en) 1958-12-11
NL97805C (en)
CH374650A (en) 1964-01-31
CH368157A (en) 1963-03-31
GB822476A (en) 1959-10-28
BE562442A (en)

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