| 摘要 |
The invention concerns novel compounds of the formula I <CHEM> The compounds are herbicides and in further embodiments the invention provides herbicidal compositions containing as active ingredient a compound of formula I, a process for severely damaging or killing unwanted plants by applying to the plants or to the growth medium of the plants an effective amount of a compound of formula I, processes for the preparation of compounds of formula I and intermediates useful in the preparation of compounds of formula I. |
