摘要:
Disclosed are fluorobenzene derivatives, which are important intermediates for producing herbicidal oxazolidinedione derivatives, and methods of producing them. The fluorobenzene derivatives include compounds of formula (11):
where X is a halogen atom, R³ is a nitro, amino or isocyanato group or R¹OCONH, and R¹ is an alkyl or phenyl group. Via the intermediates of the invention, oxazolidinedione derivatives can be produced with high yield.
摘要:
An oxazolidinedione compound represented by the formula (I): wherein R 1 represents a hydrogen atom, an alkyl group having 1 to 5 carbon atoms, a cycloalkyl group having 3 to 5 carbon atoms, an alkenyl group having 3 to 5 carbon atoms, an alkynyl group having 3 to 5 carbon atoms or an alkoxycarbonyl group having 1 or 2 carbon atoms in the alkyl moiety thereof, R 2 represents an alkyl group having 3 to 5 carbon atoms or a cycloalkyl group having 3 to 5 carbon atoms, and X represents a chlorine atom or a fluorine atom; a process for preparing the same; and a herbicidal composition comprising the oxazolidinedione compound as an active component are disclosed. The above oxazolidinedione compounds exhibit a high selectivity for useful crop plants and a strong herbicidal activity with respect to various noxious weeds.
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 of the intermediate, and a herbicide containing the derivative as an active ingredient.
摘要:
A benzoxazinone compound represented by the formula (I): wherein R¹ represents a hydrogen atom or an alkyl group, and R² represents a hydrogen atom, an alkyl group, a cyanoalkyl group, an alkenyl group, an alkynyl group or an aralkyl group; a process for preparing the same; and a herbicidal composition comprising the benzoxazinone compound as an active component are disclosed. The above benzoxazinone compounds exhibit a high selectivity for useful crop plants and a strong herbicidal activity with respect to various noxious weeds.
摘要:
Novel hydantoin derivative which is represented by the formula: (wherein X and Y represent a halogen atom, R 1 represents a hydrogen atom, an alkyl group, a cycloalkyl group, an alkenyl group or an alkynyl group, R 2 represents a hydrogen atom, an alkyl group, an alkenyl group or an alkynyl group, and R 3 and R 4 independently represent a hydrogen atom or a lower alkyl group), and a herbicide containing said derivative as effective ingredient. This hydantoin derivative exhibit excellent weed-killing activity for harmful weeds and low phytotoxicity for crop plants.
摘要:
Benzene derivatives useful as intermediates for the production of herbicides based on benzene derivatives substituted with a heterocyclic ring are disclosed.