摘要:
A heterocycle-substituted benzene derivative represented by general formula (I) wherein R represents C₃ to C₈ cycloalkyl, X represents halogen, and Z represents (Ia) or (Ib) provided that the cycloalkyl may be substituted with C₁ to C₆ alkyl. This compound is excellent in that it has a remarkably high herbicidal effect against weeds growing in both upland and lowland fields in a low dose, while it has a remarkably low phytotoxicity against main crops.
摘要:
A 3,4,5,6-tetrahydrophthalamide derivative and a 3,4,5,6-tetrahydroisophthalimide derivative, both having an excellent efficay as the active ingredient of a herbicide, and an industrial process for efficiently producing these higher-performance, herbicidally active compounds. A tetrahydrophthalamide derivative represented by general formula (I) is produced by the reaction of a tetrahydrophthalimide derivative, prepared by the reaction of a halogenated 5-cycloalkyloxyaniline derivative with 3,4,5,6-tetrahydrophthalic anhydride, or of the tetrahydroisophthalimide derivative of the invention with various amines. These tetrahydrophthalamide and tetrahydroisophthalimide derivatives have an excellent herbicidal effect in the treatment of lowland and upland soils and foliage treatment. The tetrahydroisophthalimide derivative is useful also as an intermediate for producing the tetrahydrophthalamide derivative and the like.
摘要:
The invention relates to 4-imino-oxazolidine-2-one derivatives represented by the general formula (1):
and a process for producing said compounds by reacting aryl isocyanates of the general formula (2):
with methacrolein cyanohydrin in the presence of a base, as well as a herbicide containing said compounds as an active ingredient; it also relates to a process for producing oxazolidinedione derivatives useful as herbicides by hydrolyzing said compounds.
摘要:
This invention provides with novel hydantoin derivatives, processes for preparing them, and herbicides containing said derivatives as active ingredient. The hydantoin derivative of this invention represented by the general formula (1): is produced by reacting an arylisocyanate derivative or an arylisothiocyanate derivative represented by the general formula (2): with a dehydropipecolic acid derivative represented by the general formula (3):
摘要:
A 3,4,5,6-tetrahydrophthalamide derivative and a 3,4,5,6-tetrahydroisophthalimide derivative, both having an excellent efficay as the active ingredient of a herbicide, and an industrial process for efficiently producing these higher-performance, herbicidally active compounds. A tetrahydrophthalamide derivative represented by general formula (I) is produced by the reaction of a tetrahydrophthalimide derivative, prepared by the reaction of a halogenated 5-cycloalkyloxyaniline derivative with 3,4,5,6-tetrahydrophthalic anhydride, or of the tetrahydroisophthalimide derivative of the invention with various amines. These tetrahydrophthalamide and tetrahydroisophthalimide derivatives have an excellent herbicidal effect in the treatment of lowland and upland soils and foliage treatment. The tetrahydroisophthalimide derivative is useful also as an intermediate for producing the tetrahydrophthalamide derivative and the like.