Process for the production of dialkyl pyrimidylphosphates

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

C - Chemistry, Metallurgy

07

F

C07F 9/547 (2006.01)

Patent

CA 2118460

A PROCESS FOR THE PRODUCTION OF DIALKYL PYRIMIDYLPHOSPHATES ABSTRACT OF THE DISCLOSURE O,O-dialkyl pyrimidylphosphates are made by reacting an O,O- dialkyl phosphorohalothioate with a 5-hydroxypyrimidine in the presence of a quaternary ammonium phase transfer catalyst, an organic solvent and an alkali metal hydroxide at a pH of from about 8 to about 12 at a temperature of up to about 70°C. The O,O-dialkyl pyrimidylphosphates which are produced in high yield are particularly useful as pesticides and insecticides.

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