Novel substituted pyrazole derivative, process for producing the same, and herbicidal composition containing the same

• US 20050014649A1
• Filed: 12/18/2002
• Published: 01/20/2005
• Est. Priority Date: 12/20/2001
• Status: Active Grant

• Current Assignee: SDS Biotech K. K.
• Original Assignee: SDS Biotech K. K.
• Inventors: Nakashima, Hideki, Osanai, Sayo, Hirohara, Yoji, Ikuta, Eiji, Ishii, Teruhiko
• Granted Patent: US 7,192,906 B2
• Time in Patent Office: Days
• US Class Current: 504/280
• CPC Class Codes: A01N 43/56 1,2-Diazoles; Hydrogenated 1,2-diazoles
• CPC Class Codes: C07D 231/12 with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms

Abstract

Substituted pyrazole compounds of the formula (1). The compounds are synthesized from a pyrazole derivative and a haloalkyleneoxime ester derivative, and have excellent herbicidal effects. Herbicide compositions containing the substituted pyrazole derivatives or hydrazide derivatives thereof as active ingredients possess wide herbicidal spectra, work sufficiently in small dosages, and are sufficiently safe for certain important crops.

Claims

1. A substituted pyrazole derivative represented by the formula (1):

2. A substituted pyrazole derivative according to claim 1 having the formula (1) in which R₄ is a hydrogen atom and R₅ is a substituted amino group —

N(R₁₁,R₁₂) and being represented by the following formula (4);

5. A herbicide composition comprising one or more kinds of the substituted pyrazole derivatives of claim 1 as active ingredients.

6. A herbicide composition comprising one or more kinds of the substituted pyrazole derivatives of claim 2 as active ingredients.

3. A process for preparing substituted pyrazole derivatives of the formula (1), said process comprising reacting a pyrazole derivative of the formula (5) with a haloalkyleneoxime ester derivative of the formula (6) to obtain a pyrazole derivative ester of the formula (7):

4. A process for preparing the haloalkyleneoxime ester derivative of the formula (6) as described in claim 3, said process comprising allowing a hydroxylamine derivative of the formula (19) to act on a halopyruvate derivative of the formula (18) in the presence of a solvent, said hydroxylamine derivative being used in 1 or more equivalents per equivalent of said halopyruvate derivative:

7. A substituted pyrazole derivative represented by the following formula (1):

8. A substituted pyrazole derivative according to claim 7, having the formula (1) in which R₄ is a hydrogen atom and R₅ is a substituted amino group —

N(R₁₁, R₁₂), and being represented by the following formula (4);

9. A herbicide composition comprising one or more kinds of the substituted pyrazole derivatives of claim 7 as active ingredients.

10. A herbicide composition comprising one or more kinds of the substituted pyrazole derivatives of claim 8 as active ingredients.