Haloalkoxy-substituted benzoylcyclohexanediones as...

Details Haloalkoxy-substituted benzoylcyclohexanediones as... Haloalkoxy-substituted benzoylcyclohexanediones as...

C - Chemistry, Metallurgy

07

C

C07C 49/84 (2006.01) A01N 35/04 (2006.01) A01N 35/06 (2006.01) A01N 37/42 (2006.01) A01N 41/06 (2006.01) C07C 45/54 (2006.01) C07C 45/72 (2006.01) C07C 205/45 (2006.01) C07C 205/59 (2006.01) C07C 255/56 (2006.01) C07C 309/65 (2006.01) C07C 311/02 (2006.01) C07C 317/24 (2006.01) C07C 317/32 (2006.01) C07C 317/46 (2006.01) C07C 323/22 (2006.01) C07C 323/62 (2006.01)

Patent

CA 2062440

- 1 - HOE 91/F 066 Abstract of the disclosure Haloalkoxy-substituted benzoylcyclohexanediones as herbicides and plant growth regulators Compounds of the formula I Image (I) in which n is 0-6, R1 is alkyl, haloalkyl, cycloalkyl, halocyclo- alkyl, phenyl or halogenated phenyl, R2 is Hal, CN, alkyl, haloalkyl, alkoxy, haloalkoxy, thioalkyl, RaSO2-, RaSO2O-, RaSO2NR6, Ra and Rb being alkyl or haloalkyl, and R3 is H) Hal, alkyl, haloalkyl, alkoxy, haloalkoxy or alkylthio, and R4 i haloalkyl, are suitable as selective herbicides and as growth regulators. To prepare them, a cyclohexanedione can be reacted a) with a 4-oxy-substituted benzoyl chloride and the resulting enol ether can be rearranged, or b) with a benzoyl cyanide. The benzoyl chloride or benzoyl cyanide required can be obtained from correspondingly substituted toluenes via the carboxylic acid.

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