| 摘要 |
Novel cyclohexenonecarboxylic acid derivatives exhibit herbicidal and plant growth regulating activity. The cyclohexanedionecarboxylic derivatives are of the formula I <IMAGE> (I) wherein A is an aliphatic or aromatic alcohol, or is an amino group which may be substituted by halogen, lower alkoxy, lower alkylthio, nitro or cyano, or is a heterocyclic amino group which is unsubstituted or substituted, R is C1-C6alkyl or C3-C6cycloalkyl, each unsubstituted or substituted by halogen, C1-C4alkoxy or C1-C4alkylthio, R1 is C1-C6alkyl, C1-C6haloalkyl, C3-C6alkenyl, C3-C6haloalkenyl or C3-C6alkylnyl, B is an aliphatic or aromatic radical or is an aliphatic or aromatic carbonyl or sulfonyl group which may be substitued by halogen, lower alkoxy, lower alkylthio, nitro or cyano. The compounds are suitable for selectively controlling grasses in crops of useful plants.
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