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. 1986 Feb;12(2):385-409.
doi: 10.1007/BF01020563.

Pheromones of two arctiid moths (Creatonotos transiens andC. gangis) : Chiral components from both sexes and achiral female components

T W Bell  1 , J Meinwald
Affiliations

Pheromones of two arctiid moths (Creatonotos transiens andC. gangis) : Chiral components from both sexes and achiral female components

T W Bell et al. J Chem Ecol. 1986 Feb.

Abstract

The two major components of the female sex pheromones of twoCreatonotos species have been identified as an achiral C21 triene, (Z,Z,Z)-3,6,9-heneicosatriene, and a chiral epoxide, (Z,Z)-2(2,5-octadienyl)-3-undecyloxirane. The ratios of these components in the two species fall into nonoverlapping ranges. Two additional achiral minor components, (Z,Z)-6,9-heneicosadiene and (Z,Z,Z)-3,6,9-tricosatriene, were also identified in the female sex gland extracts. The male pheromone of both species consists of hydroxydanaidal, a chiral dihydropyrrolizine derived from pyrrolizidine alkaloids in the larval diet.Creatonotos transiens was found to convert dietary heliotrine into (R)-(-)-hydroxydanaidal, with inversion at the single asymmetric carbon atom. The possible biological and biosynthetic significance of the chiral pheromone components are discussed, and they are compared with known examples of chiral lepidopteran pheromones.

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