Dongbu Hannong Chemical Co., Ltd.

Korea Research Institute of Chemical Technology

Jin Seog Kim

Jae Wook Ryu

Young Kwan Ko

Jae Chun Woo

Dong Wan Koo

Hae Sung Chang

Dae Whang Kim

Eung K Ryu

Jae N Kim

Kyoung Mahn Kim

Herbicidal phenoxypropionic acid N-alkyl-N-2-fluorophenyl amide compounds

The present invention relates to novel cyclohexane-1-3-dione derivatives of formula (1) useful as herbicides and plant-growth regulants, ##STR1## wherein X is selected from the group consisting of hydrogen, halogen, C.sub.1 -C.sub.6 alkyl, C.sub.2 -C.sub.6 alkoxy, C.sub.1 -C.sub.6 haloalkyl, nitro, C.sub.1 -C.sub.6 alkylthio, C.sub.1 -C.sub.6 alkylsulfinyl, C.sub.1 -C.sub.6 alkylsulfonyl, C.sub.1 -C.sub.6 sulfamoyl, and N, N-di(C.sub.1 -C.sub.6 alkyl)sulfamoyl group; (X)n represents the number of X substituents which may be substituted on benzene ring, wherein n is 1, 2 or 3. Also, cyclohexyl moiety, one of the substituents on benzofuran ring, is substituted at C-4, C-5, C-6 or C-7 position on benzene ring; R.sup.1 is selected from the group consisting of hydrogen and C.sub.1 -C.sub.6 alkyl group; R.sup.2 is selected from the group consisting of C.sub.1 -C.sub.6 alkyl, C.sub.2 -C.sub.6 alkenyl and C.sub.2 -C.sub.6 alkynyl group; R.sup.3 is selected from the group consisting of hydrogen, C.sub.1 -C.sub.6 alkyl, C.sub.1 -C.sub.6 haloalkyl, C.sub.2 -C.sub.6 alkenyl, C.sub.2 -C.sub.6 haloalkenyl, C.sub.2 -C.sub.6 alkoxyalkyl, C.sub.2 -C.sub.6 alkylthioalkyl, benzyl and C.sub.2 -C.sub.6 haloalkanoyl group; R.sup.4 is selected from the group consisting of hydrogen, alkali metal cation, alkaline earth metal cation, C.sub.1 -C.sub.4 alkanoyl, C.sub.1 -C.sub.4 haloalkanoyl and benzoyl group.

Herbicidal cyclohexane-1,3-dione derivatives and their preparation

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Daejeon, South Korea

Jin Seog Kim