摘要:
Provided are a polycyclic pyrazolinone derivative indicated by general formula (1) (in the formula, R 1 , X 1 , X 2 , X 3 , and Y indicate the definitions provided in the Specification) and a herbicide comprising same as effective component thereof.
摘要:
An industrial process for efficiently preparing a 3-(substituted phenyl)-5-isopropylidene-1,3-oxazolidine-2,4-dione derivative having a potent herbicidal activity without using phosgene or the like. More precisely, a process for preparing a 3-(substituted phenyl)-5-alkylidene-1,3-oxazolidine-2,3-dione derivative of general formula (III) by reacting an N-(substituted phenyl)carbamate of general formula (I) with a 2-hydroxy-3-alkenoate of general formula (II) or a 3-alkoxy-2-hydroxyalkanoate of general formula (IV), wherein Ar is substituted phenyl; R1 is C1-C6 alkyl; R?2 and R3¿ are each independently hydrogen or C¿1?-C12 alkyl; and R?4 and R5¿ are each independently C¿1?-C6 alkyl.
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 present invention provides a pyrazole derivative of the general formula (1), which has an excellent efficacy as an active component for a herbicide, an intermediate for the production thereof, processes for the production thereof, and a herbicide containing the derivative as an active ingredient.
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:
A pyrazole derivative represented by the following general formula (1). (1) It is highly effective when used as the active ingredient of a herbicide.
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):