abstract |
1. Technical Result Increase in herbicidal efficiency. 2. Essence A composition of the formula (1) (values of R1, R2, Q and Z are defined in the description), method for their production, which comprises acylation of hydroxypyrazole of the formula (II) (R15=H) activated by carbon acid IIIa or IIIb (provided in the description) and rearrangement of the acylation product in the presence of catalyst to obtain the final product, a means containing this compound and method for controlling undesirable plants. 3. Field of Application Agriculture. |