| 摘要 |
A compound having the structural formula <CHEM> R is -Cl or -CF3; R1 is C1-C4 alkyl, preferably ethyl and isopropyl and C2-C4 alkenyl, preferably C3-alkenyl; and R2 is selected from the group consisting of C1-C3 alkyl, preferably ethyl and C2- C3 alkoxyalkyl; and its use as a herbicide. |
