Volatiles from the Root of Diplotaenia cachrydifolia, the First Natural Source of 6-Camphenone

Comparison of the Leaf, Root and Fruit Oils ofDiplotaenia cachrydifoliafrom Turkey

“…In recent years, several studies have been performed on the antifungal effect and chemical composition of Diplotaenia species oil and extracts of different origins (2)(3)(4)(5)(6). Studies concerning the composition of D. cachrydifolia are very limited (2,6,7).…”

“…Studies concerning the composition of D. cachrydifolia are very limited (2,6,7). Coumarins isolated from D. damavandica were angelicin, libanorin, psoralen, auraptene and xanthotoxin (6,8).…”

Monoterpenoids

“…171 The acetate (145) is also present in the root oil of Cleistopholis patens.172 The main components of the essential oil from Strobilanthes auriculatus are isoborneol (146) together with its isobutyrate (147) and the diester (148).17, The roots of Diplotaenia cachrydifolia contain 6-camphenone (149), which has thus been obtained as a natural product for the first time. 174 The metabolism of (+)-camphor (143) in Salvia oficinalis has been S. oficinalis possesses an electrophoretically distinct dehydrogenase which is specific for the oxidation of (+)-borne01 ( 144) to (+)-camphor (143), while Tanacetum vulgare has a similar enzyme which specifically oxidizes ( -)-borne01 to ( -)-camphor. 176 The oxidation of (+)-borne01 (144) by cultured cells of Nicotiana tabaccum has been further in~estigated.…”

“…a-Pinene epoxide (1 86) is converted into a-campholenic aldehyde (174) when it is treated with a synthetic or with a molecular sieve which has been impregnated with KMn0,.14' P-Pinene epoxide (212) yields the dienol (21 3) under the former condition. 140 The chiral diene (214) has been ~ynthesized.…”