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Fungicidal compositions for the control of paddy rice diseases

A composition and disease technology, applied in application, biocide, animal repellent, etc., can solve problems such as rice blast outbreaks, achieve the effects of reducing necessary times, excellent control effects, and saving agricultural labor

Inactive Publication Date: 2005-12-14
MEIJI SEIKA KAISHA LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] However, in some cases, even after the application of the control agent, it may fail under certain meteorological conditions (such as abnormally cold summer weather and a long rainy season) and due to unfavorable cultivation conditions (such as poor management of seedlings and fertilization). rice blast

Method used

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  • Fungicidal compositions for the control of paddy rice diseases
  • Fungicidal compositions for the control of paddy rice diseases
  • Fungicidal compositions for the control of paddy rice diseases

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0035] The preparation method of formula (1) compound

[0036] Compounds of formula (1) may be synthesized by any suitable method of forming bonds or introducing substituents.

[0037] For example, the compound of formula (1) can be prepared from 4-tert-butyl-2-fluoroaniline synthesized by a conventional method according to the following scheme.

[0038]

[0039] in

[0040] R represents a hydrogen atom, -COR 1 、-COOR 1 、-COCH 2 OCH 3 or -COCH 2 OCOCH 3 ;

[0041] R 1 represents an alkyl group with 1 to 4 carbon atoms; and

[0042] R 2 Indicates -R 1 , -OR 1 、-CH 2 OCH 3 or -CH2 OCOCH 3 .

[0043] According to this scheme, the compound of formula (2) is first obtained (step (a)), and then, if desired, the compound of formula (2) is reacted with the compound of formula (3) or (4) in the presence or absence of a base ( Step (b)) to obtain the compound of formula (1).

[0044] The above scheme is described in more detail below.

[0045] Step (a):

[004...

Embodiment approach

[0075] In this method, "simultaneous" application includes the following embodiments: the compound of formula (1) or its acid addition salt and at least one compound selected from strobilurin fungicides are mixed together in advance to prepare the mixture, and then Apply this mixture to the target area. "Separate" application includes the following embodiments: that is, it is not necessary to pre-mix the compound of formula (1) or its acid addition salt with at least one compound selected from the group consisting of strobilurin fungicides, the compound of formula (1) or its acid The addition salt is applied before or after the other ingredient.

[0076] In yet another preferred embodiment of the present invention, a method for controlling rice diseases is provided, the method comprising applying to the area to be treated:

[0077] (A) a first composition comprising a compound of formula (1) or an acid addition salt thereof as an active ingredient, and

[0078] (B) A second ...

Embodiment

[0080] The following examples further illustrate the invention, but are not intended to limit it.

[0081] The preparation of formula 1 compound

[0082] Compounds of formula (1) having substituents shown in Table 1 below (compounds 1 to 11) were prepared.

[0083] Table 1

[0084] substituent

R

R 1

Compound 1

-H

-

Compound 2

-COR 1

-CH 3

Compound 3

-COR 1

-C 2 h 5

Compound 4

-COR 1

-C 3 h 7

Compound 5

-COR 1

-C 4 h 9

Compound 6

-COOR 1

-CH 3

Compound 7

-COOR 1

-C 2 h 5

Compound 8

-COOR 1

-C 3 h 7

Compound 9

-COOR 1

-C 4 h 9

Compound 10

-COCH 2 OCH 3

-

Compound 11

-COCH 2 OCOCH 3

-

[0085] Compounds 1-11 were prepared according to the following procedure.

[0086] Preparation of 4-tert-butyl-2-fluoroan...

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Abstract

The invention relates to fungicidal compositions effective in the control of paddy rice diseases, containing as the active ingredients both a compound represented by the general formula (1) or an acid addition salt thereof and at least one member selected from among strobilurin insecticides: (1) wherein R is hydrogen, -COR<1>, -COOR<1> (wherein R<1> is alkyl having 1 to 4 carbon atoms), -COCH2OCH3, or -COCH2OCOCH3.

Description

Background of the invention [0001] field of invention [0002] The present invention relates to a fungicidal composition having an excellent effect of controlling rice diseases, more particularly, to a fungicidal composition having an excellent effect of controlling rice fungal diseases including rice blast. [0003] Related areas [0004] WO 01 / 92231 (International Publication Date: December 6, 2001) submitted by the applicant discloses a compound of formula (1) or an acid addition salt thereof with excellent fungicidal activity: [0005] [0006] in [0007] R represents a hydrogen atom; -COR 1 or-COOR 1 , where R 1 Represents an alkyl group with 1 to 4 carbon atoms; -COCH 2 OCH 3 or -COCH 2 OCOCH 3 . In this publication, the physical and chemical properties of the above-mentioned compounds and the control effect of the above-mentioned compounds on rice blast are also described. In addition, the publication describes that the above compound has excellent the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/42
CPCA01N43/42A01N43/54A01N43/40A01N37/50A01N61/00A01N2300/00
Inventor 寺冈豪松村诚
Owner MEIJI SEIKA KAISHA LTD
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