GB703658A - Manufacture of organic phosphorus compounds having insecticidal properties - Google Patents

Manufacture of organic phosphorus compounds having insecticidal properties

Info

Publication number
GB703658A
GB703658A GB1528751A GB1528751A GB703658A GB 703658 A GB703658 A GB 703658A GB 1528751 A GB1528751 A GB 1528751A GB 1528751 A GB1528751 A GB 1528751A GB 703658 A GB703658 A GB 703658A
Authority
GB
United Kingdom
Prior art keywords
bis
oxide
dimethylamino
phosphorus
dialkylamino
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
GB1528751A
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.)
Murphy Chemical Co Ltd
Original Assignee
Murphy Chemical Co Ltd
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 Murphy Chemical Co Ltd filed Critical Murphy Chemical Co Ltd
Priority to GB1528751A priority Critical patent/GB703658A/en
Publication of GB703658A publication Critical patent/GB703658A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic System
    • C07F9/02—Phosphorus compounds
    • C07F9/06—Phosphorus compounds without P—C bonds
    • C07F9/22—Amides of acids of phosphorus
    • C07F9/24—Esteramides
    • C07F9/2404—Esteramides the ester moiety containing a substituent or a structure which is considered as characteristic
    • C07F9/2433—Compounds containing the structure N-P(=X)n-X-acyl, N-P(=X)n-X-heteroatom, N-P(=X)n-X-CN (X = O, S, Se; n = 0, 1)
    • C07F9/245—Compounds containing the structure N-P(=X)n-X-acyl, N-P(=X)n-X-heteroatom, N-P(=X)n-X-CN (X = O, S, Se; n = 0, 1) containing the structure N-P(=X)n-X-P (X = O, S, Se; n = 0, 1)

Abstract

Organic phosphorus compounds are made by reacting a dialkylamino-dihalogen phosphoric oxide and a bis-(dialkylamino) halogen phosphoric oxide at a raised temperature in the presence of an inorganic alkaline condensing agent. Major constituents of the mixture of products obtained are bis (bis dialkylamino) phosphorus anhydrides and triphosphoric pentadialkylamides. Alkali metal hydroxides e.g. those of sodium and potassium, and anhydrous potassium carbonate are mentioned as condensing agents. Advantageously water is removed from the reaction as formed, e.g. by the use of a water-entrainer such as toluene. In Examples dimethylamino dichlorophosphoric oxide and bis (dimethylamino)-chloro-phosphoric oxide are reacted in the presence of (1) sodium hydroxide and toluene, (2) potassium hydroxide and toluene and (3) potassium hydroxide and carbon tetrachloride, water being removed by azeotropic distillation, to yield mixtures of bis (bisdimethylamino) phosphorus anhydride and triphosphoric pentadimethylamide. The products have insecticidal properties. Bis (dimethylamino)-chlorophosphoric oxide may be made by treating anhydrous dimethylamine with phosphorus oxychloride in an organic solvent. Dimethylamino - dichlorophosphoric oxide is made by treating dimethylamine hydrochloride (a by-product in the production of the phosphoric oxide, with phosphorus oxychloride.
GB1528751A 1951-06-27 1951-06-27 Manufacture of organic phosphorus compounds having insecticidal properties Expired GB703658A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1528751A GB703658A (en) 1951-06-27 1951-06-27 Manufacture of organic phosphorus compounds having insecticidal properties

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1528751A GB703658A (en) 1951-06-27 1951-06-27 Manufacture of organic phosphorus compounds having insecticidal properties

Publications (1)

Publication Number Publication Date
GB703658A true GB703658A (en) 1954-02-10

Family

ID=10056397

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1528751A Expired GB703658A (en) 1951-06-27 1951-06-27 Manufacture of organic phosphorus compounds having insecticidal properties

Country Status (1)

Country Link
GB (1) GB703658A (en)

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