Process for the production of dialkyl pyrimidylphosphates

Details Process for the production of dialkyl pyrimidylphosphates Process for the production of dialkyl pyrimidylphosphates

1993-11-12

1996-03-26

Bernhardt, Emily

Organic compounds -- part of the class 532-570 series

Organic compounds

Four or more ring nitrogens in the bicyclo ring system

544298, 5483351, C07F 96512

Patent

active

055021905

ABSTRACT:
O,O-dialkyl pyrimidylphosphates are made by reacting an O,O-dialkyl phosphorohalothioate with a 5-hydroxypyrimidine in the presence of an imidazole phase transfer catalyst, an aromatic solvent and an alkali metal hydroxide at a pH of from about 8 to about 12 and a temperature of up to about 70.degree. C. The products of this process are obtained in high yield. These compounds are useful as pesticides and insecticides.

REFERENCES:
patent: 4094873 (1978-06-01), Kroposki et al.
patent: 4147866 (1979-04-01), Freedman et al.
patent: 4357328 (1982-11-01), Pawloski
patent: 4429125 (1984-01-01), Reifshneider
patent: 4729987 (1988-03-01), Reifschneider

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