| abstract |
The invention provides insecticidally active compounds of formula I: @ wherein R<1> is selected from alkyl and cycloalkyl and R<2> is selected from hydrogen and alkyl, or R<1> and R<2> form a cycloalkyl group substituted by hydrogen or halogen, and Y represents a substituted aryl group where each substituent is selected from halo, alkyl, aryl, aralkyl, aryloxy and arylamino. The invention also provides a process for the preparation of compounds of formula I and insecticidal compositions comprising them. |