| 摘要 |
The present invention relates to novel trifluorobutenes of the formula (I) wherein R1 represents hydrogen, halogen, or alkyl which may be unsubstituted or substituted with halogen, hydroxy, alkoxy, alkylthio, alkylcarbonyloxy, haloalkylcarbonyloxy or cyano, or represents alkylsulfonyloxy or represents phenyl which may be unsubstituted or substituted with halogen, alkyl, haloalkyl, alkoxy, alkylthio, alkylsulfonyl, haloalkoxy, haloalkylthio, phenyl, phenoxy, cyano or nitro. R2 represents hydrogen, halogen, or alkyl which may be unsubstituted or substituted with alkoxy or halogen, or represents alkoxycarbonyl, and n represents 0, 1 or 2, provided that if R1 represents alkyl, R2 does not represent halogen, processes for their preparation and their use as nematicides. |
