Novel n-phosphoryl- or n-thiophosphoryl-n's-triazinyl-formamidines

摘要

N-phosphoryl- or N-thiophosphoryl-N'-s-triazinylformamidines of the formula <IMAGE> wherein R1 and R2 independently of one another are each C1-C20-alkyl, or phenyl unsubstituted or substituted by halogen atoms, R3 is C1-C6-alkyl or C3-C6-cycloalkyl, R4 is hydrogen, C1-C6-alkyl or C3-C6-cycloalkyl, and X and Y are each oxygen or sulfur. A process for producing these triazines and their use for controlling pests are described.