PROCESS FOR THE PRODUCTION OF DIALKYL PYRIMIDYLPHOSPHATES

摘要

A PROCESS FOR THE PRODUCTION OF DIALKYL PYRIMIDYLPHOSPHATES O,O-dialkyl pyrimidylphosphates are made by reacting an O,Odialkyl phosphorohalothioate with a 5-hydroxypyrimidine in the presence of a cation coordinating catalyst, an organic 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.