| 摘要 |
A compound of formula (I) or a salt or N-oxide thereof: (I) wherein R1, R2, R5, R6 and R7 are each independently H or a substituent; R4 is a substituent; G is H or a substituent; X is O or S; R8 is optionally substituted mono- or bicyclic aryl or an optionally substituted mono- or bicyclic heteroaryl containing a heteroatom selected from N, O and S. Preferably G is H; X is O; R1 is H; R2 is optionally substituted alkyl; R4 is Me or Et; R5 = R6 = R7 = H; R8 is substituted phenyl; substituted pyridyl; substituted quinoxalinyl or substituted benzoxazolyl; In another aspect, the invention relates to herbicidal compositions comprising such compounds, and to their use in controlling weeds such as grassy monocotyledonous weeds, especially in crops of useful plants, or in inhibiting undesired plant growth. |
