Identification and synthesis of some fatty acid derivatives from larvae of Chilecomadia valdiviana (Lepidoptera: Cossidae)

Abstract

Larvae of Chilecomadia valdiviana (Lepidoptera: Cossidae) were extracted and the extract was fractionated by chromatography on silica. As shown by gas chromatography–mass spectrometry, the major fraction contained saturated and unsaturated straight-chain acetates, with (Z )-5,13-tetradecadienyl acetate and dodecyl acetate as the main components, while in a minor fraction the corresponding alcohols were detected. The identification of the compounds and the synthesis of some reference material are presented.

Keywords:

• Chilecomadia
• Cossidae
• Larvae
• Acetates
• DMDS
• GC/MS

Acknowledgements

Jan Bergmann would like to thank the “Dirección de Investigación” of PUCV for a research grant (DI 125.789). Katya Lopez thanks MECESUP (Chile) for a doctoral fellowship. The support of Corporación Nacional Forestal (Viña del Mar, Chile) is acknowledged.