2-ARYL-5-HETEROCYCLYL-CYCLOHEXANE-1,3-DIONE COMPOUNDS AND THEIR USE AS HERBICIDES

摘要

Cyclohexanedione compounds of Formula (I) wherein R<SUP>1</SUP> is methyl, ethyl, n-propyl, iso-propyl, cyclopropyl, halomethyl, haloethyl, halogen, vinyl, ethynyl, methoxy, ethoxy, halomethoxy or haloethoxy, R<SUP>2</SUP> and R<SUP>3</SUP> are, independently hydrogen, halogen, C<SUB>1</SUB>-C<SUB>6</SUB>alkyl, C<SUB>1</SUB>-C<SUB>6</SUB>haloalkyl, C<SUB>1</SUB>-C<SUB>6</SUB>alkoxy, C<SUB>1</SUB>-C<SUB>6</SUB>haloalkoxy, C<SUB>2</SUB>-C<SUB>6</SUB>alkenyl, C<SUB>2</SUB>-C<SUB>6</SUB>haloalkenyl, C<SUB>2</SUB>-C<SUB>6</SUB>alkynyl, C<SUB>3</SUB>-C<SUB>6</SUB>alkenyloxy, C<SUB>3</SUB>-C<SUB>6</SUB>haloalkenyloxy, C<SUB>3</SUB>-C<SUB>6</SUB>alkynyloxy, C<SUB>3</SUB>-C<SUB>6</SUB>cycloalkyl, C<SUB>1</SUB>-C<SUB>6</SUB>alkylthio, C<SUB>1</SUB>-C<SUB>6</SUB>alkylsulfinyl, C<SUB>1</SUB>-C<SUB>6</SUB>alkylsulfonyl, C<SUB>1</SUB>-C<SUB>6</SUB>alkylsulfonyloxy, C<SUB>1</SUB>-C<SUB>6</SUB>haloalkylsulfonyloxy, cyano, nitro, phenyl, phenyl substituted by C<SUB>1</SUB>-C<SUB>4</SUB>alkyl, C<SUB>1</SUB>-C<SUB>3</SUB>Cahaloalkyl, C<SUB>1</SUB>-C<SUB>3</SUB>alkoxy, C<SUB>1</SUB>-C<SUB>3</SUB>haloalkoxy, cyano, nitro, halogen, C<SUB>1</SUB>-C<SUB>3</SUB>alkylthio, C<SUB>1</SUB>-C<SUB>3</SUB>alkylsulf?nyl or C<SUB>1</SUB>-C<SUB>3</SUB>alkylsulfonyl, or heteroaryl or heteroaryl substituted by C<SUB>1</SUB>-C<SUB>3</SUB>Calkyl, d.Cahaloalkyl, C<SUB>1</SUB>-C<SUB>3</SUB>aIkoxy, C<SUB>1</SUB>-C<SUB>3</SUB>haloalkoxy, cyano, nitro, halogen, C<SUB>1</SUB>-C<SUB>3</SUB>alkylthio, C<SUB>1</SUB>-C<SUB>3</SUB>alkylsulfinyl or C<SUB>1</SUB>-C<SUB>3</SUB>alkylsulfonyl, R<SUP>4</SUP> is hydrogen, methyl, ethyl, n-propyl, iso-propyl, halomethyl, haloethyl, halogen, vinyl, ethynyl, methoxy, ethoxy, halomethoxy or haloethoxy, X is O, S, S(O) or S(O)<SUB>2</SUB>, R<SUP>5</SUP> is hydrogen or methyl, R<SUP>6</SUP> is hydrogen, methyl or ethyl, or forms a double bond, which links the carbon atom, to which R<SUP>6</SUP>is attached, with the adjacent carbon atom of R<SUP>7</SUP> or R<SUP>8</SUP>, R<SUP>7</SUP> and R<SUP>8</SUP> are independently of each other C<SUB>1</SUB>-C<SUB>5</SUB>alkylene, which is unsubstituted or substituted by methyl or ethyl, or C<SUB>2</SUB>-C<SUB>5</SUB>alkenylene, which is unsubstituted or substituted by methyl or ethyl, and G is hydrogen, an alkali metal, alkaline earth metal, sulfoni?m, ammonium or a latentiating group, are suitable for use as herbicides.