Cyclohexenone derivative, process for producing the same and herbicides comprising the same as active ingredient.

摘要

A cyclohexenone derivative is represented by the formula, <CHEM> wherein R<1> represents a (C1-C3)alkyl group, R<2> represents a (C1-C3)alkyl, (C3-C4)alkenyl, propargyl or chloroallyl group, and R<3> represents a (C1-C12)alkyl, (C3-C5)alkenyl, propargyl, halo(C2-C3)alkyl, halo(C3-C4)alkenyl, (C3-C6)cycloalkyl, (C5-C7)cycloalkenyl, (C1-C8)alkoxy(C1-C2)alkyl, methylthiomethyl, halo(C2-C4)alkoxymethyl, benzyloxymethyl (which may be substituted with a (C1-C2)alkyl group or halogen atom), carboxy(C1-C4)alkyl, (C1-C5)alkoxycarbonyl(C1-C4)alkyl, di(C1-C3)alkylcarbamoyl, di(C1-C3)alkylthiocarbamoyl, O,O-di(C1-C3)alkoxyphosphinyl, (C1-C11)alkylcarbonyl, (C2-C4)alkenylcarbonyl, (C3-C6)cycloalkylcarbonyl, (C3-C6)cycloalkylacetyl, chrysanthemoyl, benzoyl (which may be substituted with a (C1-C2)alkyl group or halogen atom), naphthalenecarbonyl, pyridinecarbonyl, furoyl or thenoyl (which may be substituted with a (C1-C2)alkyl group or halogen atom). The compounds have a high herbicidal activity against various weeds in soil treatment and foliage treatment in plough fields as well as in treatment under flooded conditions in paddy fields. Furthermore they exhibit a high selectivity to the undesired weeds as compared with the desired crops, so that they can be used in various applications as active ingredients for herbicides.