A compound of the formula: ##STR1## wherein Y is alkyl of 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms, alkylthio of 1 to 4 carbon atoms, a halogen atom, nitro or trifluoromethyl; and n is an integer of 1, 2 or 3; and when n is 2, Y.sub.n may be an alkylidenedioxy group; or a salt thereof. These compounds are useful in producing pyrazol-4-yl phosphates which posess insecticidal-acaricidal activity.
一种化合物的
化学式:##STR1##其中Y为1至4个碳原子的烷基,1至4个碳原子的烷氧基,1至4个碳原子的烷
硫基,卤素原子,硝基或三
氟甲基; n是1、2或3的整数; 当n为2时,Y.sub.n可以是烷基二氧基基团; 或其盐。这些化合物可用于生成具有杀虫杀螨活性的
吡唑-4-基
磷酸盐。