Compounds of the Formula:
wherein
R1 is H or C1-C3 alkyl
R2 is C1 -C3 alkyl; and
R3 is H, Cl, F, Br, CH3, CF3 or OCH3.
have utility as intermediates in the preparation of sulfonylurea derivatives which exhibit potent activity as preemergence or postemergence herbicides or as plant growth regulants.
式的化合物:
其中
R1 是 H 或 C1-C3 烷基
R2 是 C1-C3 烷基;以及
R3 是 H、Cl、F、Br、
CH3、
CF3 或 O 。
在制备磺酰
脲类衍
生物的过程中,这些衍
生物作为芽前或芽后
除草剂或
植物生长调节剂,具有很强的活性。