S-TRIAZOLO-(1,5-A)-PYRIMIDIN-3-Y1-5,7-DIMETHYL- PHOSPHORIC ACID DERIVATIVES

摘要

S-Tsiazolo-(1,5-a)-pyrimidin-2-yl-5,7-dimethyl-phosphoric acid derivatives of the formula wherein X represents oxygen or sulphur, R1 represents C1-C6-alkyl, and R2 represents C1-C6-alkyl, C1-C6-alkoxy, C1-C6-alkylthio, C1-C6-alkylamino or di-C1-C6-alkylamino , processes for producing them, and their use in combating pests.