alpha -Isopropyl- and alpha -cyclopropyl- alpha -(4-chlorophenyl)-acetic acid- alpha -haloethynyl- m-phenoxybenzyl esters, processes for producing them, and their use for combating insect pests

摘要

alpha -Isopropyl- and alpha -cyclopropyl- alpha -(4-chlorophenyl)-acetic acid- alpha -haloethynyl- m-phenoxybenzyl esters of the formula wherein R1 is R2 is hydrogen, fluorine, chlorine, bromine, methyl, trifluoromethyl or methoxy, and X1 is halogen, processes for producing them, and their use for combating insect pests.