| abstract |
ABSTRACT An arthropodicidally active substantially pure stereo-isomer of 2,2-dimethyl-3-(2,2-dichlorovinyl)-cyclopropane-1-carboxylic acid ? -cyano-3-phenoxy-4-fluorobenzyl ester of the formula selected from the group consisting of esters in which the asymmetric C atoms ? , ? , and ? have the following configuration: and diastereomeric mixtures of (1R)-cis- and (1R)-trans-2,2-dimethyl-3-(2,2-dichlorovinyl)-cyclopropane-1-carboxylic acid (R,S)-?-cyano-3-phenoxy-4-fluoro-benzyl esters of the formula and |