| abstract |
The compounds are used in agriculture for plant protection. They have the formula wherein r1 and r2 are, independently of one another, hydrogen, halogen, C1-C3-alkyl, C1-C2-haloalkyl, C1-C3-alkoxy or C1-C3-haloalkoxy; r3 represents hydrogen, C1-C4-alkyl or halogen substituted, hydroxy or cyano C1-C4-alkyl, cyclopropyl or triple-substituted with methyl and / or halogen substituted cyclopropyl, the substituents being the same or different; r4 is c3-C6-cycloalkyl or triple-substituted with methyl and / or halogen c3-C6-cycloalkyl, the substituents being the same or different. |