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Eur. J. Mass Spectrom. 7, 503 - 508 (2001)

Electron impact-induced fragmentation of the sesquiterpene germacrene D

Panagiotis Steliopoulos and Armin Mosandl*
Institut für Lebensmittelchemie, Johann Wolfgang Goethe-Universität Frankfurt (Main), Marie-Curie-Str. 9, 60439 Frankfurt (Main), . E-mail:

ABSTRACT:
The sesquiterpene germacrene D and two deuterium-labeled isotopomers were analyzed by enantio-multidimensional gas chromatography with tandem mass spectrometry in order to investigate mass spectral fragmentation mechanisms. The deuterated analogues were derived from in vivo feeding experiments with 1-[5,5-D2]deoxy-D-xylulose-5-phosphate using intact plant material of Solidago canadensis and were formed by biosynthesis via the methylerythritol phosphate pathway.

Keywords: germacrene D, deuterium-labeled isotopomeric enantiomers, enantio-multidimensional GC, tandem mass spectrometry, fragmentation mechanisms

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