M. Decouzon, S. Géribaldi, M. Rouillard
Sep 1, 1990
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0
Influential Citations
13
Citations
Journal
Flavour and Fragrance Journal
Abstract
The principal spectroscopic properties of the four dihydrocarveol diastereoisomers are reinvestigated. The interpretation of their 1H-NMR spectra allows unambiguous differentiation of the diastereoisomers and the determination of their conformations. ‘Negative ion chemical ionization-Collision-induced dissociation’ experiments have been performed on the quasimolecular ions [M - H]− using a FT-ICR spectrometer. The daughter ion spectra of the alkoxide negative ions [M - H]− of the four isomers show substantial differences which can be used for a diastereoisomeric differentiation and the confirmation of the conformations. The gas phase FT-IR spectra are recorded. The MS and IR results can be used for essential oil analysis using GC–MS and/or GC-FTIR techniques.