1-Alkyl-4-benzoyl-5-hydroxy-1H-pyrazole compounds in which the benzoyl moiety is substituted in the 2-position with groups such as halo or alkyl, in the 4-position with an alkylsulfonyl group, and in the 3-position with an acyclic or cyclic derivatized amino group, such as 1-ethyl-4-(2-chloro-4-methylsulfonyl-3-(morpholin-4-yl)benzoyl-5-hydroxy-1 H-pyrazole, were prepared and found to be useful for the control of a variety of broadleaf and grassy weeds. The compounds can be applied either preemergently or postemergently and can be used to control undesirable vegetation in corn, rice, and wheat crops.
2-取代苯甲酰基在2-位上带有卤素或烷基,4-位上带有烷基磺酰基,3-位上带有非环或环衍生的
氨基基团的1-烷基-4-(2-
氯-4-甲基磺酰基-3-(
吗啡啶-4-基)苯甲酰基)-5-羟基-1H-
吡唑烷类化合物被制备出来,发现其对于控制多种阔叶和禾本科杂草非常有效。这些化合物可以在作物发芽前或发芽后施用,并可用于控制玉米、稻米和小麦作物中的不良植被。