( )-TRANS-3-(E/Z-2-CHLORO-2-(4-CHLORO-PHENYL)-VINYL) -2,2-DIMETHYL-CYCLOPROPANECARBOXYLIC ACID ( )-(.alpha.- CYANO-3-PHENOXY-4-FLUORO-BENZYL) ESTER, THE UNDIVIDUAL E- AND Z-ISOMERS, PROCESSES FOR THE PREPARATION OF THESE COMPOUNDS AND THEIR USE AS ECTOPARASITICIDES

摘要

Combating ectoparasites with the substantially pure isomer mixture (?)-trans-3-(E/Z-2-Chloro-2-(4-chloro-phenyl)-vinyl)-2,2-dimethyl-cyclopropanecarboxylic acid (?)-(.alpha.-cyano-3-phenoxy-4-fluoro-benzyl) ester or the individual E- and Z-isomers of the formula The intermediate free acids, acid chlorides and esters thereof are also shown.