FLUOROBENZYL CYCLOPROPANE CARBOXYLATES, THEIR PREPARATION, COMPOSITIONS COMPRISING THEM AND THEIR USE AS INSECTICIDES

摘要

Compounds of formula I wherein R<1> and R<2> are methyl, halomethyl or halo, X is O, S, S(O), SO2 or NR4 where R4 is H, lower alkyl or lower carboxylic acyl, R<3> is lower alkyl, lower alkenyl, phenyl or benzyl, and additionally R<3> may be H when X is NR4; and n is 1 to 4, and compositions comprising them, useful as insecticides. l