Pyrazole derivatives and process for the production thereof

Details Pyrazole derivatives and process for the production thereof Pyrazole derivatives and process for the production thereof

2007-08-14

2007-08-14

Saeed, Kamal A. (Department: 1626)

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C548S366400

Reexamination Certificate

active

10521593

ABSTRACT:
The present invention provides pyrazole derivatives useful as production intermediates for isoxazoline derivatives having an excellent herbicidal effect and selectivity between crops and weeds as well as processes for producing the same.The pyrazole derivatives or pharmaceutically acceptable salts thereof which are inventive compounds are represented by the general formula [I] or a salt thereof:wherein R1represents a C1 to C6 alkyl group, R2represents a C1 to C3 haloalkyl group, R3represents a hydrogen atom, a C1 to C3 alkyl group which may be substituted with one or more substituents selected from the following substituent group α, or a formyl group, R4represents a hydrogen atom or a C1 to C3 haloalkyl group, provided that R4represents a C1 to C3 haloalkyl group in the case that R3is a hydrogen or a formyl group, and R4is a hydrogen group or a C1 to C3 haloalkyl group in the case that R3is a C1 to C3 alkyl group which may be substituted with one or more substituents selected from the following substituent group α.

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