| 摘要 |
A method of combating undesired plant growth in wheat, comprising treating said undesired plant growth with an effective amount of a compound of the formula I <IMAGE> I in which n is an integer from 1 to 6; m is an integer from 0 to 2n+2; X represents an oxygen or sulphur atom or a sulphinyl or sulphonyl group; R1, R2 and R3 each independently represents a hydrogen or halogen atom, a formyl, cyano, carboxy or azido group, or an optionally substituted C1-12 alkyl, C2-12 alkenyl, C2-12 alkynyl, C1-12 alkoxy, C2-12 alkenyloxy, C2-12 alkynyloxy, C1-12 alkylthio, C2-12 alkenylthio, C2-12 alkynylthio, C1-12 alkylcarbonyl, C1-12 alkoxycarbonyl, amino, aminoxy or di-C1-12 alkyliminoxy group; Z represents a hydrogen or halogen atom, a hydroxy group, an optionally substituted C1-12 alkoxy, C2-12 alkenyloxy, C2-12 alkynyloxy, (C3-8 cycloalkyl)oxy, phenyloxy, C1-12 alkylthio, C2-12 alkenylthio, C2-12 alkynylthio, phenylthio, sulphonamido, aminoxy or di-C1-12 alkyliminoxy group; and Y represents a halogen atom, a cyano or carboxy group, or an optionally substituted C1-12 alkyl, C2-12 alkenyl, C2-12 alkynyl, C1-12 alkoxy, C2-12 alkenyloxy, C2-12 alkynyloxy, C1-12 alkylthio, C2-12 alkenylthio, C2-12 alkynylthio, phenyloxy, C1-12 alkylcarbonyl or C1-12 alkoxycarbonyl group; or a carboxylic acid salt of a compound of formula I with an equivalent amount of an inorganic or organic cation.
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