| 摘要 |
Compounds of Formula (1) and processes for their preparation, their N-oxides and agriculturally suitable salts, are disclosed which are useful for controlling undesired vegetation wherein Q, X<1>, X<2>, X<3>, R<1>, R<2>, R<6 >and R<7 >are as defined in the disclosure. Also disclosed are novel intermediates of Formula (5), Formula (8) and Formula (20) wherein R<27 >is -(CR<6>R<7>)qQ; R<6>, R<7>, q, Q, X<1 >and X<2 >are as defined in the disclosure. Also disclosed are compositions containing the compounds of Formula (1) and a method for controlling undesired vegetation which involves contacting the vegetation or its environment with an effective amount of a compound of Formula (1).
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