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.

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 intemediate used for the preparation thereof, and a herbicidal composition comprising same.

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 intemediate used for the preparation thereof, and a herbicidal composition comprising same.

Abstract: The present invention relates to a preparing method of 2-phenylalkanoic acid derivatives and more particluarly, to the preparing method of 2-phenylalkanoic acid derivatives expressed by formula (1) from 5,6-dihydro-2(4H)-benzofuranone as a starting material in the presence of a catalyst, organic acid alkali metal salt, in a mild condition, wherein R1 prepresents benzoyl, naphthoyl, nicotinoyl, furoyl or thenoyl group; and R2 prepresents a hydrogen atom or C1-C6 alkyl group.

Abstract: The present invention relates to novel herbicidal phenoxypropionic acid N-alkyl-N-2-fluorophenyl amide compounds represented in the following formula (1), a method for preparing thereof, their use to control barnyard grass produced from rice and composition as suitable herbicides. wherein, R is methyl or ethyl group; X is hydrogen, halogen, cyano, C1˜C6 alkyl, C1˜C6 alkoxy, C1˜C3 haloalkyl substituted with 1 to 3 of halogen atom(s), C1˜C3 haloalkoxy substituted with 1 to 3 of halogen atom(s), C2˜C4 alkoxyalkoxy, phenox,benzyloxy, C2˜C6 alkenyl, C2˜C6 alkinyl, C2˜C6 alkenyloxy, C2˜C6 alkinyloxy, or phenyl group; Y is hydrogen or fluoro; n is an integer of 1 or 2 and when n is 2, X can be in a combination of other substituents.

Abstract: The present invention relates to novel 1

Abstract: The present invention relates to high selective herbicidal phenoxypropionic acid alkoxycarbonyl anilid compounds represented in formula 1, method of preparing thereof, their use to control barnyard grass produced from rice, and a composition as suitable herbicides, wherein R is a hydrogen atom, methyl or ethyl group; R1 is a hydrogen atom, C1-C6 alkyl, C1-C6 alkyl substituted with 1 to 3 of the group consisting of hydroxy, carboxyl, and a halogen atom, C3-C6 cycloalkyl, C3-C4 alkenyl, C3-C4 alkinyl, or C2-C4 alkoxyalkyl group; n is an integer of 1 or 2 and when n is 2, R1 can be a combination of other substituents.

Abstract: The present invention relates to novel herbicidal phenoxypropionic acid N-alkyl-N-2-fluorophenyl amides represented in formula (1), a method for preparing thereof, their use to control barnyard grass produced from rice and composition as suitable herbicides. In said formula, R is methyl or ethyl group; X is hydrogen, halogen, cyano, C1˜C6 alkyl, C1˜C6 alkoxy, C1˜C3 haloalkyl substituted with 1 to 3 of halogen atom(s), C1˜C3 haloalkoxy substituted with 1 to 3 of halogen atom(s), C2˜C4 alkoxyalkoxy, phenoxy, benzyloxy, C2˜C6 alkenyl, C2˜C6 alkinyl, C2˜C6 alkkenyloxy, C2˜C6 alkinyloxy, or phenyl group; Y is hydrogen or fluoro; n is an integer of 1 or 2 and when n is 2, X can be in a combination of other substituents.

Abstract: A process for preparing an o-(carboalkoxy)phenylmethanesulfonyl chloride derivative of formula (1), wherein: X is chosen from a hydrogen atom, halogen atoms, C1 to C6 alkyl groups, C1 to C6 haloalkyl groups, C1 to C6 alkoxy groups, C1 to C6 alkoxycarbonyl groups, a nitro group, and a phenyl group; R is chosen from C1 to C6 alkyl groups, C1 to C6 haloalkyl groups, and C3 to C6 cycloalkyl groups; and n is chosen from integers ranging from 1 to 4, is discussed.

Abstract: The present invention relates to novel pyridinesulfonylurea derivatives, having a herbicidal activity, which is described in the following structure of general formula (I) ##STR1## wherein, Q is Q-1, Q-2, Q-3 or Q-4 as follows; ##STR2## E is single bond or CH.sub.2 R.sup.2 is C.sub.1 -C.sub.6 alkyl substituted with 1 to 3 halogens;R.sup.1, R.sup.3, W and A are defined in the claims; and these may be an agriculturally suitable salt.