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Herbicidal pyrimidines

A C1-C4, C2-C4 technology, applied in the field of preventing and controlling unwanted plants, can solve the problems of production reduction and consumer cost increase

Active Publication Date: 2007-01-10
CORTEVA AGRISCIENCE LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Uncontrolled growth of weeds in the above mentioned useful crops can cause severe yield loss leading to increased costs to consumers

Method used

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  • Herbicidal pyrimidines
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0079] The embodiments of the present invention include:

[0080] Embodiment 1. The compound of formula I, wherein j is zero.

[0081] Embodiment 2. The compound of formula I, wherein k is zero.

[0082] Embodiment 3. The compound of formula I, wherein R 15 It's H.

[0083] Embodiment 4. The compound of Embodiment 3, wherein R 16 It's H.

[0084] Embodiment 5. The compound of formula I, wherein

[0085] R is CO 2 R 12 , CH 2 OR 13 , CH(OR 46 )(OR 47 ), CHO, C(=NOR 14 )H, C(=NNR 48 R 49 )H, C(=O)N(R 18 )R 19 , C(=S)OR 50 , C(=O)SR 51 , C(=S)SR 52 Or C(=NR 53 )YR 54 ;

[0086] R 12 Is H, -CH_C(O)O(CH 2 ) m _, -N=C(R 55 )R 56 ; Or selected from C 1 -C 14 Alkyl, C 3 -C 12 Cycloalkyl, C 4 -C 12 Alkylcycloalkyl, C 4 -C 12 Cycloalkylalkyl, C 2 -C 14 Alkenyl, C 2 -C 14 Alkynyl and phenyl groups, each group is optionally substituted by 1-3 R 27 Replaced by; or

[0087] R 12 Is the carboxylate functional group CO that is bonded to each of the two pyrimidine ring systems in formula I 2 R 12 T...

Embodiment approach 1-98

[0210] Illustrate the combination of embodiments 1-98:

Embodiment approach A

[0211] Embodiment A. The compound of Formula I, wherein

[0212] R 2 Is CO 2 R 12 , CH 2 OR 13 , CH(OR 46 )(OR 47 ), CHO, C(=NOR 14 )H, C(=NNR 48 R 49 )H, (O) i C(R 15 )(R 16 )CO 2 R 17 , C(=O)N(R 18 )R 19 , C(=S)OR 50 , C(=O)SR 51 , C(=S)SR 52 Or C(=NR 53 )YR 54 ;

[0213] R 12 Is H, -CH_C(O)O(CH 2 ) m _, -N=C(R 55 )R 56 ; Or selected from C 1 -C 14 Alkyl, C 3 -C 12 Cycloalkyl, C 4 -C 12 Alkylcycloalkyl, C 4 -C 12 Cycloalkylalkyl, C 2 -C 14 Alkenyl, C 2 -C14 Alkynyl and phenyl groups, each group is optionally substituted by 1-3 R 27 Replace; or

[0214] R 12 Is the carboxylate functional group CO which is bonded to each of the two pyrimidine ring systems in formula I 2 R 12 The divalent group is selected from -CH 2 -, -(CH 2 ) 2 -, -(CH 2 ) 3 -And-CH(CH 3 )CH 2 -;

[0215] R 13 Is H, optionally by 1-3 R 28 Replaced C 1 -C 10 Alkyl, or benzyl;

[0216] R 14 Is H, C 1 -C 4 Alkyl, C 1 -C 4 Haloalkyl or benzyl;

[0217] R 17 Is optionally 1-3 R 29 Replaced C 1 -C 10 Alkyl, or benzyl;...

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Abstract

Compounds of Formula I, and their N-oxides and agriculturally suitable salts, are disclosed which are useful for controlling undesired vegetation wherein R<1> is cyclopropyl optionally substituted with 1-5 R<5>, isopropyl optionally substituted with 1-5 R<6>, or phenyl optionally substituted with 1-3 R<7>; R<2> is ((O)jC(R<15>)(R<16>))kR; R is CO2H or a herbicidally effective derivative of CO2H; R<3> is halogen, cyano, nitro, OR<20>, SR<21> or N(R<22>)R<23>; R<4> is -N(R<24>)R<25> or -NO2; j is 0 or 1; and k is 0 or 1; provided that when k is 0, then j is 0; and R<5>, R<6>, R<7>, R<15>, R<16>, R<20>, R<21>, R<22>, R<23>, R<24> and R<25> are as defined in the disclosure. Also disclosed are compositions comprising the compounds of Formula I and a method for controlling undesired vegetation which involves contacting the vegetation or its environment with an effective amount of a compound of Formula I. Also disclosed are compositions comprising a compound of Formula I and at least one additional active ingredient selected from the group consisting of an other herbicide and a herbicide safener.

Description

Field of invention [0001] The present invention relates to certain pyrimidines, their N-oxides, agriculturally suitable salts and compositions and their use for controlling unwanted vegetation. Background of the invention [0002] Control of unwanted plants is extremely important in achieving high crop yields. Among these, it is highly desirable to selectively control the growth of weeds especially in the above-mentioned useful crops such as rice, soybeans, sugar beet, corn, potato, wheat, barley, tomato and plantation crops. Uncontrolled growth of weeds in the above mentioned useful crops can cause severe yield losses, resulting in increased costs to the consumer. It is also important to control unwanted plants in non-crop areas. Many products are commercially available for the above purposes, but there is still a need for new compounds that are more effective, inexpensive, less toxic, environmentally safe, or have different modes of action. [0003] International patent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D239/42A01N43/54
Inventor D·A·克拉克B·L·芬克尔斯坦G·R·阿默尔V·A·威藤巴赫
Owner CORTEVA AGRISCIENCE LLC
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