DE836349C - Process for the preparation of neutral esters of thiophosphoric acid - Google Patents

Process for the preparation of neutral esters of thiophosphoric acid

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Publication number
DE836349C
DE836349C DEF1406A DEF0001406A DE836349C DE 836349 C DE836349 C DE 836349C DE F1406 A DEF1406 A DE F1406A DE F0001406 A DEF0001406 A DE F0001406A DE 836349 C DE836349 C DE 836349C
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DE
Germany
Prior art keywords
preparation
thiophosphoric acid
alkyl
neutral esters
neutral
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
DEF1406A
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German (de)
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DE1618587U (en
Inventor
Dr Gerhard Schrader
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Bayer AG
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Bayer AG
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Publication date
Application filed by Bayer AG filed Critical Bayer AG
Priority to DEF1406A priority Critical patent/DE836349C/en
Application granted granted Critical
Publication of DE836349C publication Critical patent/DE836349C/en
Expired 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 neutralen Estern der Thi6phosphorsäure I:s wurde gefunden, daß man neutrale Thiophospho@s@iu@ee,ie@ erhält, wenn man 1)ialkyIchlorthiophosphate mit aliphati,chen, schwefelhaltigen Alkoholen der allgemeinen Formel H O - Alkyl - S - R umsetzt. In dieser Formel kann R für einen alipliatischen, aromatischen oder araliphatischen Rest stehen. Die mit Alkyl bezeichnete Kette kann ihrerseits durch O oder S unterbrochen sein. Die Umsetzung der genannten Esterchloride der Thiophosphc@rsäiire kann entweder mit den Alkalisalzen derdie Formel gekennzeichneten Alkohole vccrgenc@mmen werden ()der zweckmüßiger mit den Alko- holen seihst in Gegenwart eines Säurebindemittels, z. B. von wasserfreiem Natriumcarhonat. Zur Durchführung der Umsetzung arbeitet mau zweckmäßig in inerten N"erdünnungsmitteln ; als solche kommen z. B. Iiohlenwas,crstccffe, wie Benzol, Toluol usw., Chlor-Benzol u. ä., oder auch Betone, wie Aceton, llethyläthylketon, Methylpropylketon, in Frage. Die Umsetzung kann in bekannter Weise durch Zusatz von metallischem Kupfer katalytisch beschleunigt werden.Process for the preparation of neutral esters of thi6phosphoric acid I: s it has been found that neutral thiophospho @ s @ iu @ ee, ie @ are obtained if 1) alkali chlorothiophosphates with aliphatic, sulfur-containing alcohols of the general formula HO - alkyl - S - R implements. In this formula, R can stand for an aliphatic, aromatic or araliphatic radical. The chain denoted by alkyl can in turn be interrupted by O or S. The reaction of the thiophosphoric acid ester chlorides mentioned can either be carried out with the alkali metal salts of the alcohols characterized by the formula B. of anhydrous sodium carbonate. To carry out the reaction, it is expedient to work in inert diluents; such compounds include, for example, benzene, toluene, etc., chlorobenzene and the like, or concretes such as acetone, ethyl ethyl ketone, methyl propyl ketone, The reaction can be accelerated catalytically in a known manner by adding metallic copper.

Die erhaltenen Verbindungen können als Insektizide Verwendung finden. Sie zeichnen sich durch starke kc>ntaktinsektizide Wirkung aus und besitzen auch innertherapeutische insektizide Wirkung. Beispiel i i2 g feingepulvertes metallisches Natrium werden in 5o ccm trockenem Benzol angeschlämmt. Zu dieser Anschlämmung tropft man 50 g des ß-Oxäthylmethylsulfids (KP, 72°, beschrieben in Journal of the American chemical society 1930, Bd. 52, S. 2576) und hält die Temperatur eine halbe Stunde bei :Io bis 5o°. Nach dieser Zeit ist das Natrium in Lösung gegangen. Nun kühlt man auf 2ö' ab und tropft unter Rühren 87 g Dimethylchlorthiophosphat (KP, 38 bis 39') bei 1o bis 20' zu. Man hält unter weiterem Rühren diese Temperatur noch 2 Stunden, gibt dann zum Auflösen des Salzes 50 ccm Wasser hinzu, trennt die wäBrige Schicht ab und fraktioniert die Benzolschicht. 'Man erhält 7o g des 0, 0-Dimethyl-O-methylmercaptoäthylthiophosphates vom Kp2 115'. Die Ausbeute beträgt 640o der Theorie. Das erhaltene Produkt ist ein wenig wasserlösliches, farbloses 01 von charakteristischem Geruch. Beispiel 2 12 g feingepulvertes Natrium werden wie im Beispiel 1 in 5o ccm Benzol angeschlämmt. Dann gibt man unter Rühren 5o g ß-Oxäthvlmethylsulfid hinzu und erwärmt eine halbe Stunde auf 4o bis 5o', bis das Natrium in Lösung gegangen ist. Darauf tropft man unter Rühren 95 g Diäthylchlorthiophosphat@zu und hält die Temperatur unter weiterem Rühren 2 Stunden auf io°. Beim Aufarbeiten des erhaltenen Produktes bekommt man 8o g des 0, 0-Diäthyl-0-methylmercaptoäthylthiophosphats vom KP, 131 bis Z32° entsprechend einer Ausbeute von 650/0.The compounds obtained can be used as insecticides. They are characterized by a strong tactile insecticidal effect and also have an internal therapeutic insecticidal effect. Example i 2 g of finely powdered metallic sodium are suspended in 50 cc of dry benzene. 50 g of β-oxethylmethylsulfide (KP, 72 °, described in Journal of the American chemical society 1930, vol. 52, p. 2576) are added dropwise to this slurry and the temperature is maintained at: 10 ° to 50 ° for half an hour. After this time the sodium has gone into solution. It is then cooled to 20 'and 87 g of dimethylchlorothiophosphate (KP, 38 to 39') are added dropwise at 10 to 20 'with stirring. This temperature is maintained for a further 2 hours with further stirring, 50 cc of water are then added to dissolve the salt, the aqueous layer is separated off and the benzene layer is fractionated. 'One receives 70 g of 0, 0-dimethyl-O-methylmercaptoethylthiophosphate of bp2 115'. The yield is 640o of theory. The product obtained is a slightly water-soluble, colorless oil with a characteristic odor. Example 2 12 g of finely powdered sodium are suspended in 50 cc of benzene as in Example 1. Then, while stirring, 50 g of β-oxetholmethyl sulfide are added and the mixture is heated to 40 to 50 'for half an hour until the sodium has dissolved. 95 g of diethyl chlorothiophosphate are then added dropwise with stirring and the temperature is kept at 10 ° for 2 hours with further stirring. When the product obtained is worked up, 80 g of 0, 0-diethyl-0-methylmercaptoethylthiophosphate from KP.131 to Z32 °, corresponding to a yield of 650/0.

Beispiel 3 11o g ß-Oxäthyläthylsulfid (Kp" 8o', beschrieben Liebigs Annalen der Chemie, 1887, Bd. 240, S.310; Berichte der Deutschen chemischen Gesellschaft, 192o, Bd. 53, S. 107 und 1935, Bd. 68, S. 588) werden in Zoo ccm Toluol gelöst. Zu der Lösung gibt man 2 g Kupferpulver und 11o g wasserfreies Natriumcarbonat. Unter Rühren gibt man bei 8o bis 9o' 19o g Diäthylchlorthiophosphat und hält die Temperatur unter Rühren bei 8o bis 9o°. Dann wird auf Zimmertemperatur abgekühlt. Die entstandenen Salze werden durch Zugabe von Zoo ccm Wasser in Lösung gebracht. Die wäßrige Schicht wird abgetrennt. Nach dem Abdestillieren des Toluols bleiben 193 g roher 0, 0-Diäthyl-O-äthy lmercaptoäthylthiophosphat zurück entsprechend einer Ausbeute von 75°/0. Der neue Ester ist in reinem Zustand ein farbloses, schwach riechendes 01 vom KP, 134'. Nach den unter Beispiel 1 bis 3 beschriebenen Methoden lassen sich folgende Thiophosphorsäureester hersiellen: Example 3 110 g ß-Oxäthyläthylsulfid (bp "8o ', described Liebigs Annalen der Chemie, 1887, vol. 240, p.310; reports of the German chemical society, 192o, vol. 53, p. 107 and 1935, vol. 68 , P. 588) are dissolved in zoo cc of toluene. 2 g of copper powder and 11o g of anhydrous sodium carbonate are added to the solution. It is then cooled to room temperature. The resulting salts are dissolved by adding zoo cc of water. The aqueous layer is separated off. After the toluene has been distilled off, 193 g of crude 0.0-diethyl-O-ethyl mercaptoethyl thiophosphate remain, corresponding to a yield of 75%. In the pure state, the new ester is a colorless, weakly smelling oil from KP, 134 '. The following thiophosphoric acid esters can be prepared using the methods described in Examples 1 to 3:

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung von neutralen Thiopliosphorsäureestern, dadurch gekennzeichnet, daß man Dialkylchlorthiophosphate mit Alkoholen der allgemeinen Formel H O - Alkyl - S - R, in der R für einen aliphatischen, aromatischen oder araliphatischen Rest steht, Alkyl durch S oder O unterbrochen sein kann und der Rest R, sofern er eine Alkylgruppe bedeutet, auch eine Oxygruppe enthalten kann, in Form ihrer Alkoholate oder in Gegenwart eines säurebindenden Mittels zweckmäßig in einem inerten Lösungsmittel umsetzt.PATENT CLAIM: Process for the production of neutral Thiopliosphorsäureestern, characterized in that dialkyl chlorothiophosphates with alcohols of the general Formula HO - alkyl - S - R, in which R stands for an aliphatic, aromatic or araliphatic radical, alkyl can be interrupted by S or O and the Radical R, if it is an alkyl group, can also contain an oxy group, in the form of their alcoholates or in the presence of an acid-binding agent reacted in an inert solvent.
DEF1406A 1950-05-10 1950-05-10 Process for the preparation of neutral esters of thiophosphoric acid Expired DE836349C (en)

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Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE931106C (en) * 1953-03-19 1955-08-01 Bayer Ag Process for the preparation of thiophosphoric acid esters of polyhydric aliphatic alcohols
DE936037C (en) * 1953-04-23 1955-12-01 Bayer Ag Process for the production of thiophosphoric acid and phosphoric acid esters
DE956503C (en) * 1953-07-22 1957-01-17 Geigy Ag J R Process for the production of new phosphoric or thiophosphoric acid esters
DE1007770B (en) * 1954-09-01 1957-05-09 Sandoz Ag Process for the production of new thionophosphoric acid esters
DE1014107B (en) * 1954-12-28 1957-08-22 Wolfen Filmfab Veb Process for the preparation of esters of phosphorus-containing acids
DE1014988B (en) * 1955-09-07 1957-09-05 Bayer Ag Process for the production of neutral thionophosphoric acid triesters
DE1036846B (en) * 1956-12-21 1958-08-21 Bayer Ag Process for the preparation of thiophosphoric acid esters
DE1044503B (en) * 1954-10-27 1958-11-20 Hoechst Ag Pest repellants
DE1047775B (en) * 1957-03-29 1958-12-31 Basf Ag Process for the preparation of O, O-dialkylphosphorus or thiophosphoric acid esters of hydroxyketones
DE1047776B (en) * 1958-03-28 1958-12-31 Bayer Ag Process for the preparation of thionophosphoric acid esters
DE1056121B (en) * 1957-02-27 1959-04-30 Bayer Ag Process for the preparation of thiophosphoric acid esters
DE1062239B (en) * 1956-07-28 1959-07-30 Bayer Ag Process for the preparation of thiophosphoric acid esters
DE1063155B (en) * 1957-10-09 1959-08-13 Bayer Ag Process for the preparation of thiophosphoric acid esters
DE1063153B (en) * 1956-12-10 1959-08-13 Bayer Ag Process for the preparation of esters of thiophosphoric acid containing sulfide, sulfoxide or sulfone groups
DE1063154B (en) * 1950-05-09 1959-08-13 Bayer Ag Process for the preparation of thiophosphoric acid esters
DE1078124B (en) * 1957-06-18 1960-03-24 Bayer Ag Process for the preparation of thionophosphonic acid esters
DE1085887B (en) * 1956-04-27 1960-07-28 Bayer Ag Process for the preparation of new, insecticidally active thionophosphoric acid esters
US2952700A (en) * 1955-11-22 1960-09-13 Bayer Ag Thiophosphoric acid esters and their production
DE1101406B (en) * 1956-03-22 1961-03-09 Bayer Ag Process for the preparation of thionophosphoric acid esters
DE1116656B (en) * 1958-05-28 1961-11-09 Bayer Ag Process for the preparation of thionophosphoric acid esters
DE1117110B (en) * 1957-06-14 1961-11-16 Bayer Ag Process for the preparation of thionophosphoric acid esters
DE1163831B (en) * 1956-06-04 1964-02-27 Bayer Ag Process for the preparation of thionophosphoric acid esters
DE1185858B (en) * 1960-08-18 1965-01-21 Basf Ag Insecticides
DE1187849B (en) * 1955-11-22 1965-02-25 Bayer Ag Insecticides
DE1242602B (en) * 1964-03-31 1967-06-22 Wolfen Filmfab Veb Process for the preparation of beta-alkylmercaptoethyl-dialkyl-thiophosphoric acid triesters

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1063154B (en) * 1950-05-09 1959-08-13 Bayer Ag Process for the preparation of thiophosphoric acid esters
DE931106C (en) * 1953-03-19 1955-08-01 Bayer Ag Process for the preparation of thiophosphoric acid esters of polyhydric aliphatic alcohols
DE936037C (en) * 1953-04-23 1955-12-01 Bayer Ag Process for the production of thiophosphoric acid and phosphoric acid esters
DE956503C (en) * 1953-07-22 1957-01-17 Geigy Ag J R Process for the production of new phosphoric or thiophosphoric acid esters
DE1007770B (en) * 1954-09-01 1957-05-09 Sandoz Ag Process for the production of new thionophosphoric acid esters
DE1044503B (en) * 1954-10-27 1958-11-20 Hoechst Ag Pest repellants
DE1014107B (en) * 1954-12-28 1957-08-22 Wolfen Filmfab Veb Process for the preparation of esters of phosphorus-containing acids
DE1014988B (en) * 1955-09-07 1957-09-05 Bayer Ag Process for the production of neutral thionophosphoric acid triesters
DE1187849B (en) * 1955-11-22 1965-02-25 Bayer Ag Insecticides
US2952700A (en) * 1955-11-22 1960-09-13 Bayer Ag Thiophosphoric acid esters and their production
DE1101406B (en) * 1956-03-22 1961-03-09 Bayer Ag Process for the preparation of thionophosphoric acid esters
DE1085887B (en) * 1956-04-27 1960-07-28 Bayer Ag Process for the preparation of new, insecticidally active thionophosphoric acid esters
DE1163831B (en) * 1956-06-04 1964-02-27 Bayer Ag Process for the preparation of thionophosphoric acid esters
DE1062239B (en) * 1956-07-28 1959-07-30 Bayer Ag Process for the preparation of thiophosphoric acid esters
DE1063153B (en) * 1956-12-10 1959-08-13 Bayer Ag Process for the preparation of esters of thiophosphoric acid containing sulfide, sulfoxide or sulfone groups
DE1036846B (en) * 1956-12-21 1958-08-21 Bayer Ag Process for the preparation of thiophosphoric acid esters
DE1056121B (en) * 1957-02-27 1959-04-30 Bayer Ag Process for the preparation of thiophosphoric acid esters
DE1047775B (en) * 1957-03-29 1958-12-31 Basf Ag Process for the preparation of O, O-dialkylphosphorus or thiophosphoric acid esters of hydroxyketones
DE1117110B (en) * 1957-06-14 1961-11-16 Bayer Ag Process for the preparation of thionophosphoric acid esters
DE1078124B (en) * 1957-06-18 1960-03-24 Bayer Ag Process for the preparation of thionophosphonic acid esters
DE1063155B (en) * 1957-10-09 1959-08-13 Bayer Ag Process for the preparation of thiophosphoric acid esters
DE1047776B (en) * 1958-03-28 1958-12-31 Bayer Ag Process for the preparation of thionophosphoric acid esters
DE1116656B (en) * 1958-05-28 1961-11-09 Bayer Ag Process for the preparation of thionophosphoric acid esters
DE1185858B (en) * 1960-08-18 1965-01-21 Basf Ag Insecticides
DE1242602B (en) * 1964-03-31 1967-06-22 Wolfen Filmfab Veb Process for the preparation of beta-alkylmercaptoethyl-dialkyl-thiophosphoric acid triesters

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