PROCESS FOR THE PREPARATION OF TRANS-3-(Z-2-CHLORO-2-ARYL-VINYL)-2,2-DIMETHYL-CYCLOPROPANE-1-CARBOXYLIC ACID DERIVATIVES,NEW INTERMEDIATE PRODUCTS FOR THIS PROCESS AND A PROCESS FOR THEIR PREPARATION,AND THE USE OF INTERMEDIATE PRODUCTS IN AGENTS FOR COMBATING PESTS

摘要

The invention relates to a process for preparing trans-3-(Z-2-chloro-2-(4-aryl)-vinyl)-2,2-dimethyl-cyclopropane-1-carb oxylic acid derivatives of Formula (I) from corresponding dehalogenated compounds of Formula (II) by dehalogenation. The invention also includes to the novel compounds of Formula (III) and a halogenation process for their production. The compounds of the invention are useful as intermediates and/or insecticides or acaricides.