| Title: | "Identification, synthesis, and field evaluation of the sex pheromone of the citrus fruit borer Ecdytolopha aurantiana" |
| Author(s): | Leal WS; Bento JM; Murata Y; Ono M; Parra JR; Vilela EF; |
| Address: | "Department of Entomology, University of California, Davis 95616, USA. wsleal@ucdavis.edu" |
| ISSN/ISBN: | 0098-0331 (Print) 0098-0331 (Linking) |
| Abstract: | "The sex pheromone of the citrus fruit borer Ecdytolopha aurantiana has been identified by gas chromatography coupled to an electroantennographic detector (GC-EAD). The electron impact mass spectral (EI-MS) fragmentation of the major EAD-active peak gave identifying features for a monounsaturated acetate. Further analyses by chemical ionization mass spectrometry (CI-MS), vapor-phase infrared spectroscopy (GC-IR), along with chemical derivatization (DMDS reaction), led to full characterization of the major component as (E)-8-dodecenyl acetate (E8-12 : Ac). The second constituent was identified as the related alcohol, (E)-8-dodecenol (E8-12 : OH). The two compounds were indistinguishable from the authentic synthetic standards in chemical and EAD analyses. Samples of the two compounds were obtained by a facile synthesis utilizing lithium chemistry. Field tests showed that captures in traps baited with a mixture of E8-12 : Ac and E8-12 : OH at 100 : 1 and 10 : 1 ratios were not significantly different from the catches in traps having two virgin females. Dosage tests showed better performance of traps baited with 1 mg than those with 0.1 mg of the pheromone blend, either in 100 : 1 or 10 : 1 ratio" |
| Keywords: | "Acetates/isolation & purification/*pharmacology Alcohols/chemistry/isolation & purification/pharmacology Animals Chromatography, Gas Fatty Acids, Monounsaturated/*chemistry/isolation & purification/*pharmacology Gas Chromatography-Mass Spectrometry Larva;" |
| Notes: | "MedlineLeal, W S Bento, J M Murata, Y Ono, M Parra, J R Vilela, E F eng 2001/11/17 J Chem Ecol. 2001 Oct; 27(10):2041-51. doi: 10.1023/a:1012242904220" |
