| 摘要 |
The invention relates to compounds of formula (I), where R<1>, R<2>, R<3>, R<4>, R<5>, R<6>, R<7>, n and X have the meanings given in the description, as well as to enol ethers and salts thereof and to their preparation. The compounds possess herbicidal properties and are therefore suitable active ingredients for herbicides. The invention also relates to a herbicide containing one or more of these substances and the use of the substances or herbicides for combating weeds. Certain starting materials which also possess herbicidal properties and their preparation are also described. |
