# US 9,518,061 B2 · Substituted pyrazolylpyrazole derivative and use of same as herbicide

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- Number: US 9,518,061 B2
- Document ID: US9518061B2
- Status: Granted
- Kind: B2
- Application number: 14/905,414
- Filed: 2014-08-11
- Published: 2016-06-09
- Granted: 2016-12-13
- Earliest claimed: 2013-08-13
- Assignees: Kyoyu Agri Co., Ltd.
- Applicants: Kyoyu Agri Co., Ltd.
- Inventors: Ken Matsubara; Makoto Niino
- Web page: https://patentgrep.com/patent/US9518061B2

## CPC

- C07D 487/04: Ortho-condensed systems
- A01N 43/90: having two or more relevant hetero rings, condensed among themselves or with a common carbocyclic ring system
- C07D 471/04: Ortho-condensed systems
- C07D: HETEROCYCLIC COMPOUNDS (macromolecular compounds C08)
- A01N: PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF (preservation of food or foodstuff A23); BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES (preparations for medical, dental or toiletry purposes which kill or prevent the growth or proliferation of unwanted organisms A61K); PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS

## Abstract

Provided is a compound capable of effectively control worst weeds of higher leaf stages that present practical problems. A specific pyrazolylpyrazole derivative of formula (1) is disclosed that is able to solve the above-mentioned problems.

## Claims

### Claim 1

A compound represented by the following formula (I):
wherein,
R1 represents a halogen atom,
R2 represents a cyano group or nitro group,
R3 represents a C2-C4 alkyl group substituted with one or more halogen atoms or a C1-C2 alkoxy-C1-C3-alkyl group,
a represents 3 to 5, and
b represents 1 to 3.

### Claim 2 (depends on 1)

A herbicide composition comprising a herbicidally effective amount of at least one compound according to claim 1.

### Claim 3 (depends on 2)

The herbicide composition according to claim 2, further comprising a formulation assistant.

### Claim 4 (depends on 1)

A method for controlling undesirable plants, comprising a step of applying an effective amount of at least one compound according to claim 1 to an undesirable plant or to a location of an undesirable vegetation.

### Claim 5 (depends on 2)

A method for controlling undesirable plants, comprising a step of applying an effective amount of the herbicide composition according to claim 2 to an undesirable plant or a location of an undesirable vegetation.

### Claim 6 (depends on 3)

A method for controlling undesirable plants, comprising a step of applying an effective amount of the herbicide composition according to claim 3 to an undesirable plant or a location of an undesirable vegetation.