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US 6,806,229 B1Granted
Herbicidally active pyridine sulfonyl urea derivatives
AssigneeLG Life Sciences Ltd.
InventorsSuk-Jin Koo, Jin-Ho Cho, Jeong-Su Kim, Seung-Hun Kang, Kyung-Goo Kang, Dae-Whang Kim, Hae-Sung Chang, Young-Kwan Ko, Jae-Wook Ryoo
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Abstract
The present invention relates to pyridine sulfonyl urea derivatives, salts or stereochemical isomers thereof showing an effective herbicidal activity in pre- and/or post-emergence treatment in rice farming, or to a method to use thereof, a method for the preparation thereof, an intermediate used for the preparation thereof, and a herbicidal composition comprising same.
Claims10
A pyridine sulfonyl urea compound of the following formula (1):
- in which
- n denotes an integer of from 1 to 3,
- R represents H or C1-C4-alkyl,
- R′ represents H, C1-C4-alkyl, C1-C3-haloalkyl, halogen, or C1-C2-alkoxy, and
- X and Y independently of one another represent C1-C2-alkyl, C1-C2-alkoxy, C1-C2-haloalkoxy, or halogen, salts or stereochemical isomers thereof.
2 more elements
Dependencies are inferred from the claim text.