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Constituents of the essential oil of Pulicaria gnaphalodes (Vent.) Boiss. from Iran

✍ Scribed by Peter Weyerstahl; Helga Marschall; Hans-Christian Wahlburg; Christian Christiansen; Abdolhossein Rustaiyan; Fatemeh Mirdjalili

Publisher: John Wiley and Sons
Year: 1999
Tongue: English
Weight: 186 KB
Volume: 14
Category: Article
ISSN: 0882-5734
DOI: 10.1002/(sici)1099-1026(199903/04)14:2<121::aid-ffj790>3.0.co;2-k

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✦ Synopsis

The essential oil of Pulicaria gnaphalodes (Vent.) Boiss. from Iran was investigated by GC, GC±MS and NMR spectroscopy. Typical for this oil are pinane [chrysanthenone (23), cis-chrysanthenol (34)], cadinane [cadina-1(10),4-dien-8a-ol (114)] and bisabolane derivatives [nuciferol (118), g-curcumen-12-ol (119)]. New, naturally occurring compounds are (Z)-3-methylnon-3-en-2-one ( 43), the so-called helifolen-12-als 94, 95, 98, 99, tricyclic sesquiterpene aldehydes with a helifolane (syn. allo-cedrane or khusiane) skeleton, and the italicen-12-ols 108 and 110. These aldehydes and alcohols are presumably formed by [4 2] resp. [2 2] cycloaddition of the corresponding g-curcumene derivatives.

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