Chloroacetanilides are disclosed having the general formula: ##STR1## wherein R.sup.1 =H, or alkyl with 1-5 carbon atoms, or X; X=alkenyl, and preferably ##STR2## in which the various R.sup.2, which may be equal to or different from each other, are H or an alkyl with 1-3 carbon atoms; A=alkylene, optionally substituted, of the formula: ##STR3## in which the various R.sup.2, which may be equal to or different from each other, have the meanings specified above; and Y=H; alkyl with 1-5 carbon atoms; alkenyl with 2-5 carbon atoms; alkinyl with 2-5 carbon atoms; phenyl; cycloalkyl with 3-8 carbon atoms; halogen; ##STR4## wherein R=H; alkyl with 1-5 carbon atoms; alkenyl or alkinyl with 2-5 carbon atoms; cycloalkyl with 3-8 carbon atoms; phenyl; The chloroacetanilide derivatives are useful in combatting infestations of infesting monocotyledons and dicotyledons during pre-emergence, by spreading the chloroacetanilide derivative on the soil adjacent thereto in quantities ranging from 0.25 kg/ha upwards.
氯苯乙
酰胺类化合物的一般公式为:其中R.sup.1 = H,或者具有1-5个碳原子的烷基,或者X;X=烯基,最好为其中各R.sup.2,可以相等,也可以不同,为H或者具有1-3个碳原子的烷基;A=烷基,可选地取代,具有下列公式:其中各R.sup.2,可以相等,也可以不同,具有上述指定的含义;Y=H;具有1-5个碳原子的烷基;具有2-5个碳原子的烯基;具有2-5个碳原子的炔基;苯基;具有3-8个碳原子的环烷基;卤素;其中R=H;具有1-5个碳原子的烷基;具有2-5个碳原子的烯基或炔基;具有3-8个碳原子的环烷基;苯基;这些
氯苯乙酰胺衍
生物在预发芽期间对抗单子叶植物和双子叶植物的侵袭是有用的,通过将
氯苯乙酰胺衍
生物在相邻土壤上散布,用量从0.25 kg/ha起。