# US 9,872,493 B2 · Method for promoting plant growth

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- Number: US 9,872,493 B2
- Document ID: US9872493B2
- Status: Granted
- Kind: B2
- Application number: 14/441,626
- Filed: 2013-10-31
- Published: 2015-10-29
- Granted: 2018-01-23
- Earliest claimed: 2012-11-09
- Assignees: Sumitomo Chemical Company, Limited
- Applicants: Sumitomo Chemical Company, Limited
- Inventors: Fujio Mukumoto; Hiroaki Tamaki; Shintaro Kusaka; Mitsuhiko Iwakoshi
- Web page: https://patentgrep.com/patent/US9872493B2

## CPC

- A01N 43/12: condensed with a carbocyclic ring
- A01G 7/06: Treatment of growing trees or plants, e.g. for preventing decay of wood, for tingeing flowers or wood, for prolonging the life of plants
- 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
- A01G: HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING (picking of fruits, vegetables, hops or the like A01D46/00; propagating unicellular algae C12N1/12)

## Abstract

The present invention provides a method for promoting plant growth, which comprises treating a plant with a compound represented by the following Formula (1): provided that a method for promoting plant growth which comprises treating plants with a compound corresponding to the following (1) or an agriculturally acceptable salt thereof are excluded, (1) benzo[b]thiophene-3-carboxylic acid. The method set forth in one of the above, the plant being soybeans. The method set forth in one of the above, the plant being cotton. A plant seed resulting from treatment with the compound of claim 1 containing an effective quantity of the compound indicated in formula (1). A composition for promoting plant growth and containing an inert component and the compound indicated in formula (1).

## Claims

### Claim 1

A method for promoting plant growth, wherein the plant is a plant that has been exposed to abiotic stress, which comprises
treating a plant with a compound represented by the following Formula (1):
wherein
R1 represents —C(O)W substituted at one of the positions 3, 4, 5, 6, and 7,
W represents —ON═CR4R5, —OR6, —SR7, or —NR4R8,
R2 represents a cyano group, a halogen atom, a nitro group, a C1-C6 alkyl group optionally having one or more groups selected from a group X, a C2-C6 alkenyl group optionally having one or more groups selected from the group X, a C2-C6 alkynyl group optionally having one or more groups selected from the group X, a phenyl group optionally having one or more groups selected from a group Y, a 6-membered aromatic heterocyclic group optionally having one or more groups selected from the group Y, a 5-membered aromatic heterocyclic group optionally having one or more groups selected from the group Y, a carboxy group, a C2-C6 alkylcarbonyl group optionally having one or more halogen atoms, a benzoyl group optionally having one or more groups selected from the group Y, a C2-C6 alkoxycarbonyl group, an aminocarbonyl group, —NR9R10, —S(O)2NR4R9, —OR9, —S(O)mR9, or —SF5, substituted at one of the positions 3, 4, 5, 6, and 7, provided that R2 is substituted at a position different from that of R1,
R3 represents a hydrogen atom, a halogen atom, a cyano group, a nitro group, a C1-C6 alkyl group optionally having one or more groups selected from the group X, a C2-C6 alkenyl group optionally having one or more groups selected from the group X, a C2-C6 alkynyl group optionally having one or more groups selected from the group X, a C2-C6 alkylcarbonyl group optionally having one or more halogen atoms, a benzoyl group optionally having one or more groups selected from the group Y, —NR9R10, —S(O)2NR4R9, —OR9, or —S(O)mR9,
R4 and R5 are the same or different and each represents a C1-C6 alkyl group optionally having one or more halogen atoms, a phenyl group optionally having one or more groups selected from the group Y, or a hydrogen atom,
R6 represents a hydrogen atom, a C1-C6 alkyl group optionally having one or more groups selected from a group Z, a C3-C6 alkenyl group optionally having one or more groups selected from the group X, a C3-C6 alkynyl group optionally having one or more groups selected from the group X, a C4-C7 cycloalkylalkyl group optionally having one or more halogen atoms, a C3-C6 cycloalkyl group optionally having one or more halogen atoms, a phenyl group optionally having one or more groups selected from the group Y, or a C7-C9 phenylalkyl group in which a benzene ring portion may have optionally one or more groups selected from the group Y,
R7 represents a hydrogen atom, a C1 -C6 alkyl group optionally having one or more groups selected from the group X, a C3-C6 alkenyl group optionally having one or more groups selected from the group X, a C3-C6 alkynyl group optionally having one or more groups selected from the group X, a phenyl group optionally having one or more groups selected from the group Y, or a C7-C9 phenylakyl group in which a benzene ring portion may have optionally one or more groups selected from the group Y,
R8 represents a hydrogen atom, a cyano group, a C1-C6 alkyl group optionally having one or more groups selected from the group Z, a phenyl group optionally having one or more groups selected from the group Y, a benzyl group in which a benzene ring portion may have optionally one or more groups selected from the group Y, —OR4, or —NR4R5,
R9 represents a C1-C6 alkyl group optionally having one or more groups selected from the group X, a C3-C6 alkenyl group optionally having one or more groups selected from the group X, a C3-C6 alkynyl group optionally having one or more groups selected from the group X, a C4-C7 cycloalkylalkyl group optionally having one or more halogen atoms, a C7-C9 phenylalkyl group in which a benzene ring portion may have optionally one or more groups selected from the group Y, a 6-membered aromatic heterocyclyl C1-C3 alkyl group in which a 6-membered aromatic heterocycle portion may have optionally one or more groups selected from the group Y, a phenyl group optionally having one or more groups selected from the group Y, a C3-C6 cycloalkyl group optionally having one or more halogen atoms, or a hydrogen atom, provided that when m in —S(O)mR9 is 1 or 2, R9 is not a hydrogen atom,
R10represents a hydrogen atom, a C1-C4 alkyl group optionally having one or more halogen atoms, a C 1-C4 alkylsulfonyl group optionally having one or more halogen atoms, a phenylsulfonyl group optionally having one or more groups selected from the group Y, a C7-C9 phenylalkylsulfonyl group in which a benzene ring portion may have optionally one or more groups selected from the group Y, a C2-C6 alkoxycarbonyl group, —C(O)R11, or —C(O)NR4R5,
R11 represents a hydrogen atom, a C 1-C6 alkyl group optionally having one or more halogen atoms, a phenyl group optionally having one or more groups selected from the group Y, a 5-membered aromatic heterocyclic group optionally having one or more groups selected from the group Y, or a 6-membered aromatic heterocyclic group optionally having one or more groups selected from the group Y,
m represents 0, 1, or 2, and
n represents an integer of 0 to 4, provided that when n is an integer of 2 or greater, R2s may be the same or different and each is substituted at different positions,
the group X represents a group consisting of a halogen atom, a cyano group, and a C1-C6 alkoxy group optionally having one or more halogen atoms,
the group Y represents a group consisting of a halogen atom, a cyano group, a nitro group, a C1-C6 alkyl group optionally having one or more halogen atoms, and a C1-C6 alkoxy group optionally having one or more halogen atoms, and
the group Z represents a halogen atom, a hydroxyl group, a C1-C6 alkoxy group optionally having one or more halogen atoms, and a C2-C6 alkoxycarbonyl group,
provided that a method for promoting plant growth which comprises treating plants with a compound corresponding to the following (2) or an agriculturally acceptable salt thereof is excluded,
(2) Benzo[b]thiophene-3-carboxylic acid.

### Claim 2 (depends on 1)

The method according to claim 1, wherein the application to the plant includes a spraying treatment, a soil treatment, a seed treatment, or a hydroponic treatment.

### Claim 3 (depends on 1)

The method according to claim 1, wherein the application to the plant is the seed treatment.

### Claim 4 (depends on 1)

The method according to claim 1, wherein the plant is rice, corn, or wheat.

### Claim 5 (depends on 1)

The method according to claim 1, wherein the plant is a transgenic plant.

### Claim 6 (depends on 1)

The method according to claim 1, wherein the abiotic stress is high-temperature stress.

### Claim 7 (depends on 1)

The method according to claim 1, wherein the abiotic stress is low-temperature stress.

### Claim 8 (depends on 1)

The method according to claim 1, wherein the abiotic stress is drought stress.

### Claim 9 (depends on 1)

The method according to claim 1, wherein the plant is soybean.

### Claim 10 (depends on 1)

The method according to claim 1, wherein the plant is cotton.