N. Asfaw et al., Coexistence of chrysanthenone, filifolone and (Z)-isogeranic acid in hydrodistillates. Artefacts!, PHYTOCHEM, 58(3), 2001, pp. 489-492
Hydrodistilled oil from leaves of the Ethiopian plant Laggera tomentosa has
been shown to contain (-)-chrysanthenone (5%), (-)/(+)-filifolone (92:8; 8
%) and (Z)-isogeranic acid (8%)-all likely to be artefacts. The main consti
tuent of the oil, (+)-chrysanthenone (53%), is believed to be the precursor
undergoing thermal and solvolytic reactions during the hydrodistillation p
rocess. (C) 2001 Published by Elsevier Science Ltd.