| 摘要 |
There is disclosed an R enantiomer of phenoxypropionic acid compound of the formula <IMAGE> in which X represents hydrogen or halogen, and R represents hydroxyl, alkoxy, halogen or the radical of the formula <IMAGE> wherein R1 and R2 independently of one another represent hydrogen or methyl, n represents 0, 1 or 2 and Y represents trimethylsilyl, or optionally substituted azolyl bonded via nitrogen, or represents alkoxy, alkoxycarbonyl or the radical of the formula <IMAGE> wherein Q represents oxygen, sulphur, SO or SO2 and R3 and R4 independently of one another represent hydrogen, halogen, alkyl having 1 to 4 carbon atoms, alkoxy having 1 to 4 carbon atoms, alkylthio having 1 to 4 carbon atoms, nitro, cyano or alkoxycarbonyl having 1 to 4 carbon atoms in the alkoxy group; compositions containing herbicidally effective amounts of such R enantiomers and the use of such R enantiomers as herbicides.
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