| 摘要 |
The 6-alkoxycarbonylpyridazin-3-one compounds given in the formula: wherein, X represents a hydrogen and so on, Y represents a halogen atom, R1 represents a C1-C6 alkyl group, R2 represents a hydrogen and other groups as defind, R3 represents a C1-C3 haloalkoxy group and B represents a hydrogen and other groups as defind, are intermediates to produce the pyridazin-3-one compounds given in the formula: wherein X represents a hydrogen atom and other groups as defind, Y represents a halogen atom, R2 represents a hydrogen atom and other groups as defind, R3 represents a C1-C3 haloalkyl group and B represents a hydrogen atom and other groups as defined, which are herbicidal compounds.
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