Eucalyptol aus EukalyptusölILMA NEUMANN | HANS-ULLRICH SIEHL |

Summary Eucalyptol (1,8-cineol), a cyclic monoterpenoid ether, is the dominant portion of eucalyptus oil, an essential oil of Eucalyptus globulus, accessible by steam distilla-tion of its leaves. Some herbs and spices such as basil and cardamom also containit as characterising flavour compound. Eucalyptus is a very diverse genus of Myr-taceae naturally occurring in Australia to whom the species have adapted in evo-lution. Planting Eucalyptus trees outside Australia has both benefits for poor pop-ulations and drawbacks. Especially, the enormous water consumption has beencriticized. The total impact is doubtful. Eucalyptol is used in flavorings, fragrances,confectionery, cosmetics, cough suppressants, and insect repellents. Higher thannormal doses are a hazard. A convenient isolation of eucalyptol from eucalyptus isreported. All analytical spectra were recorded and are reproduced and interpretedeither in the main part or in the supporting information. The project is a follow upof the recent book “Classics in Spectroscopy” by S. Berger und D. Sicker (Wiley-VCH2009).