Pesticidally active compounds of the formula: ##STR1## wherein X is oxygen or sulphur; Y and Z are alkoxy containing from one to four carbon atoms; R.sup.1 and R.sup.2 are alkyl containing from one to four carbon atoms; and R.sup.3 is hydrogen or halogen.
式子:##STR1## 其中X为氧或
硫;Y和Z为含有1至4个碳原子的烷氧基;R.sup.1和R.sup.2为含有1至4个碳原子的烷基;R.sup.3为氢或卤素。这些化合物具有杀虫活性。