Specific fluoroethoxy pyrimidines and triazines are useful as general or selective preemergent and postemergent herbicides. Ortho-ethoxy and ortho-propoxy substituted benzenesulfonamides, such as 2-ethoxy-N-[[4-methoxy-6-(2,2,2-trifluoroethyoxy)-1,3,5-triazin-2-yl]amino carboxy]benzenesulfonamide and N-[[4-methoxy-6-(2,2,2-trifluoroethoxy)-1,3,5-triazin-2-yl]aminocarbonyl]- 2-propoxybenzenesulfonamide, and their agriculturally suitable salts show preemergent and postemergent herbicial utility in corn.
特定的
氟乙氧基
嘧啶和三嗪类化合物可作为一般或选择性的前
除草剂和后
除草剂。取代邻位乙氧基和邻位丙氧基的苯磺
酰胺类化合物,如2-乙氧基-N-[[4-甲氧基-6-(2,2,2-三
氟乙氧基)-
1,3,5-三嗪-2-基]
氨基甲酸]苯磺酰胺和N-[[4-甲氧基-6-(2,2,2-三
氟乙氧基)-
1,3,5-三嗪-2-基]
氨基甲酰]-2-
丙氧基苯磺酰胺及其在农业上适用的盐类在玉米上表现出前除草和后除草的效果。