Chemical Composition of the Volatile Oil from the Roots of Selinum tenuifolium Wall. |
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| Authors: | Rajendra S Chauhan Mohan C Nautiyal Aldo Tava Mariella Mella |
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| Institution: | 1. High Altitude Plant Physiology Research Center, H.?N. B. Garhwal University, Srinagar, Uttarakhand, India (phone: +91‐9410955374;2. fax: +91‐1346252070);3. CRA‐FLC Centro di Ricerca per le Produzioni Foraggere e Lattiero Casearie, v.le Piacenza 29, I‐26900 Lodi;4. Dipartimento di Chimica Organica Università di Pavia, v.le Taramelli 10, I‐27100 Pavia |
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| Abstract: | The essential oil from the underground parts of Selinum tenuifolium Wall. (Apiaceae) was extracted by hydrodistillation using a Clevenger‐type apparatus, and analyzed by GC/FID and GC/MS. Nine constituents, representing 97.7% of the total oil, were identified, five of which belong to the class of polyacetylenes. The structures of the compounds 1 – 5 were elucidated by using IR, MS, and 1H‐ and 13C‐NMR data after purification by column chromatography. The major constituent detected was nona‐3,5‐diyne ( 1 ; 85.6% of the total volatiles), followed by nona‐3,5‐diyn‐2‐one ( 2 ), nona‐4,6‐diyn‐3‐one ( 3 ), nona‐3,5‐diyn‐2‐ol ( 4 ), and nona‐4,6‐diyn‐3‐ol ( 5 ), accounting for 3.0, 2.5, 2.2, and 3.1% of the total volatiles, respectively. The latter four polyacetylenes, 2 – 5 , were never reported in plants so far, and, therefore should be regarded as novel compounds. |
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| Keywords: | Selinum tenuifolium Essential oils Polyacetylenes Nona‐3 5‐diyne |
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