Naturwissenschaften 84, 122–125 (1997) © Springer-Verlag 1997 mass spectra were obtained by GC- MS (Varian 3400 GC and Finnigan MAT 90 mass spectrometer) for all Trail Pheromone of the Ponerine Ant components. Based on mass spectral Leptogenys peuqueti (Hymenoptera: Formicidae): and retention time data we propose chemical structures for each com- A Multicomponent Mixture of Related Compounds pound (Table 1). To confirm the pro- Pheromones 104  posed structures of these methyl- branched secondary alcohols and acet- E. Janssen, E. Übler, L. Bauriegel, F. Kern, H. J. Bestmann * ates we synthesized all the com- Institut fu ¨ r Organische Chemie der Universita ¨t Erlangen-Nu ¨ rnberg, pounds (Table 1) using synthetic path- Henkestr. 42, D-91054 Erlangen, Germany ways shown in Fig. 2. The starting material, 2-methylpentanol A. B. Attygalle 1, was treated with triphenyl phosphite Department of Chemistry, Baker Laboratory, Cornell University, Ithaca, and iodine to form the corresponding NY 14853-1301, USA alkyl iodide 2 . Reaction of 2 with the lithio salt of 2,4,4-trimethyl-2-oxa- S. Steghaus-Kovac ˇ, U. Maschwitz zoline afforded a 2-alkyloxazoline Zoologisches Institut der Johann Wolfgang Goethe-Universita ¨t, which was hydrolyzed to the homolo- Siesmayerstrasse 70, D-60054 Frankfurt, Germany gated acetic acid 3 . Treatment
Naturwissenschaften – Springer Journals
Published: Mar 21, 1997
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