Abstract

As shown by synthesis and enantioselective gas chromatography, males and females of the caddisfly species Potamophylax latipennis and Potamophylax cingulatus produce (1 R,3 S,5 S,7 S)-1-ethyl-3,5,7-trimethyl-2,8-dioxabicyclo[3.2.1]octane, while Glyphotaelius pellucidus produces 1,3-diethyl-4,6-dimethyl-2,7-dioxabicyclo[2.2.1]heptane, having either the (1 S,3 S,4 R,6 S) or (1 R,3 R,4 S,6 S)-configuration. As shown by electrophysiological investigations, the compounds are perceived by the antennae of both sexes.

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