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US4838924A Aromatic urea derivatives and their use as herbicide 失效
芳香族脲衍生物及其作为除草剂的用途

Aromatic urea derivatives and their use as herbicide
摘要:
This invention relates to novel compounds of formula [I], a process for their production, and their use as a herbicide. ##STR1## wherein A represents the bond ##STR2## in which X is a hydrogen atom, a chlorine atom, a nitro group or a trifluoromethyl group;B represents a hydrogen atom, a methyl group or a methoxy group; andAr represents one member selected from the group consisting of ##STR3## in which R.sup.1 to R.sup.38, are as defined hereinafter.
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