Compounds of the formula: ##STR1## wherein X is oxygen or sulfur; R.sup.1 and R.sup.2 are independently lower alkyl having from 1 to 4 carbon atoms; and R.sup.3 is lower alkyl having from 1 to 6 carbon atoms, lower cycloalkyl having from 3 to 6 carbon atoms optionally substituted with methyl or ethyl, lower alkoxyalkyl having up to a total of 8 carbon atoms or lower alkylthioalkyl having up to a total of 8 carbon atoms are insecticidal.
化合物的公式为:##STR1## 其中X为氧或
硫;R.sup.1和R.sup.2独立地为1至4个碳原子的低级烷基;而R.sup.3为1至6个碳原子的低级烷基、3至6个碳原子的低级环烷基,可选择性地用甲基或乙基取代、总碳原子数不超过8的低级烷氧基烷基或总碳原子数不超过8的低级烷
硫基烷基,具有杀虫作用。