| 摘要 |
Benzimidazolyl derivatives of formula wherein Y represents:an optionally substituted alkyl, alkenyl or alkynyl group; or an optionally substituted cycloalkyl group; or a group -SR, -OR, halogen, aryl or aralkyl; or 2 groups Y form a fused phenyl ring; R2 represents a group -OH, -NR7R8 or -XM; A represents a group -SO2NR7R8; Y1 represents an optionally substituted alkyl, alkenyl or alkynyl group; or an optionally substituted cycloalkyl group; or a group such as -SR, -OR, halogen, aryl, aralkyl, -O-aryl or -NR7R8; n represents one or two; m represents an integer from 1 to 4; R represents an optionally substituted alkyl group; or an optionally substituted cycloalkyl group; R7 and R8 represent independently a group such as hydrogen, R, aryl or aralkyl; X represents oxygen or sulphur, M represents an optionally substituted alkyl group; or an optionally substituted cycloalkyl group; or an aryl, aralkyl, alkenyl, alkynyl, or an iminegroup; agriculturally acceptable salts thereof; the herbicidal compositions comprising these compounds and their application to crop protection is described.
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