MELANGES A EFFET SYNERGETIQUE D'ENANTIOMERES D'ALCOOL AMINE ALPHA- OMEGA, LEUR PREPARATION ET LEUR UTILISATION DANS LES FORMULES DE REPULSIFS DESTINES AUX INSECTES ET AUX ACARIENS
What are described are insect- and mite-repellent compositions comprising at least 2 enantiomers selected from the group of 1-[(S)-sec-butyloxycarbonyl]-2-(S)-(2- hydroxyethyl)piperidine (referred to hereinafter as S,S), 1-[(R)-sec-butyloxycarbonyl]-2-(R)-(+)-(2- hydroxyethyl)piperidine (referred to hereinafter as R,R), 1-[(S)-sec-butoxycarbonyl]-2-(R)-(+)-(2- hydroxyethyl)piperidine (referred to hereinafter as S,R), 1-[(R)-sec-butyloxycarbonyl]-2-(S)-(+)-(2- hydroxyethyl)piperidine (referred to hereinafter as R,S), excluding the racemate mixture thereof, a process for preparation thereof and the use thereof in insect- and mite-repellent formulations.