| 摘要 |
<p>New pyridylphosphoric acid derivatives, a process for the manufacture thereof by reaction of pyridinecarboxylic acid esters with salts of phosphoric acid derivatives, and pesticides containing these new pyridylphosphoric acid derivatives as active ingredients. The compounds of the invention have the formula where X denotes hydrogen or halogen, Y denotes oxygen or sulfur, R1 denotes alkyl containing 1 to 6 carbon atoms or benzyl, R2 denotes alkyl containing 1 to 6 carbon atoms, phenyl, alkyloxy or alkylthio containing 1 to 6 carbon atoms, and R3 denotes alkyl containing 1 to 4 carbon atoms.</p> |
