Abstract
Simple preparations of cis-3,6-dimethyltetrahydro-2-pyrone, VII,6-n-undecyltetrahydro-2-pyrone, XVIIb, and 6-n-pentyl-5,6-dihydro-2-pyrone, XVIa, have been achieved. Products VII and XVIIb, respectively, are the major constituent of the pheromonal blend of a carpenter bee (Xylocopa hirsutissima) and the pheromone of the queens of the Oriental hornet (Vespa orientalis). The lactone XVIa is a suspected defensive allomone in two species of formicine ants of the genus Camponotus. All three compounds have been prepared from dehydroacetic acid, I, a cheap and industrially available starting material. © 1983 Plenum Publishing Corporation.
Original language | English |
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Pages (from-to) | 703-714 |
Journal | Journal of Chemical Ecology |
Volume | 9 |
Issue number | 6 |
DOIs | |
Publication status | Published - 1 Jun 1983 |
Keywords
- 6-n-pentyl-5,6-dihydro-2-pyrone
- 6-n-undecyltetrahydro-2-pyrone
- allomone
- Camponotus
- chemical preparation
- cis-3,6-dimethyltetrahydro-2-pyrone
- Formicidae
- Hymenoptera
- lactones
- pheromone
- Vespa orientalis
- Vespidae
- Xylocopa hirsutissima
- Xylocopidae