Volatile Constituents ofNepeta denudataBenth. andN. cephalotesBoiss. from Iran

Abstract

School OJ' I'hurmu cy, Shuheed Uehesht i I /I? iiJetXitY of Medicul Scieiices PO Box 141 55 -67 5.3 Tehran, Iran h a m Monfared Ileparl meiat ($ C'hem ishy, Shaheed Ueheshr i 1 ln ii wsi!y, Lvemi, 7 kh rU 11, Iran Kobra Nadji School of I'hurmacy, Tehran Unii~enity OJ'Medicul Sciences, 7?hran, Iran AbstractThe composition o f the essential oils of Nepta &izuc(cctuBenth. and N. cephalores noiss., which arc endemic t o Iran, was investigated by means o f GC, GC/MS and 'H-NMR spectra of the main compounds, 1,8-cineok (48.(Yfi), myrtenol (5.(P?), P-pinene (4.6%) and traizsr-pinocarveol (4.5%) were the main components among the 21 constituents characterized in the oil of N. dmaudata, representing 85.7% o f the total components detected. Ten compounds were identified in the oil o f N. cel~halotesrepresentinfi 78.5% o f the total oil with 4aa, 7a,7aa-nepetalactone (35.1%), P-pinene (18.2%) and 1,s-cineole (11.4%) as the major constituents. The structure of 1,8-cineole, nepetalactone and P-pinene were confirmed by their 'H-NMR Spectra.

Chemical composition of Nepeta crassifolia Boiss. & Buhse oil from Iran

“…The amount of 4aα,7α,7aα-nepetalactone (92.6%) was almost the same as N. caesarea (91.2%) 12 and N. teydea (89.54%), 11 and was higher than other species of Nepeta, such as N. racemosa (64.9%), 7 N. cadmea (44.5%), 13 and N. cephalotes (35.1%), 9 N. binaludensis (25.2%). 10 A trace of 4aα,7α,7aβ-nepetalactone and 4aβ,7α,7aα-nepetalactone were detected in this plant.…”

An investigation on the volatile composition of some Artemisia species from Iran

“…Notable amounts (1-2 g/100 g) were determined for 1,3,5-trimethylbenzene, p-cymene, camphor, pinocarvone and borneol. Apart from a report in an Iranian journal, [14] there is no evidence of analytical studies on A. oliveriana. This bibliographic reference confirms the presence of eucalyptol and pinocarvone as main constituents but, surprisingly, no α-thujone was detected in the present study, despite of the findings presented in the Iranian report.…”

“…[12] Finally, Ramezani et al investigated the antimicrobial activity of A. diffusa and A. oliveriana. [13] Available data on the volatile composition of the oil of A. oliveriana are very scarce; an article by Rustaiyan et al [14] describes its chemical composition as characterized mainly by α-thujone, while two other studies reported the presence of flavonoids and sesquiterpene lactones, namely melampolides, in the non-volatile fraction. [15,16] The aim of this paper is to bring up to date the information on the chemical composition of these particular species of Artemisia plants coming from Iran, by means of accurate GC-MS and GC-FID analyses.…”

Compositional analysis of the essential oil of Lallemantia royleana (Benth. in Wall.) Benth. from Iran

“…[13][14][15][16][17][18][19] trans-Carveol, which was found as a second major component of the oil, has been reported in the oils of some similar or other Nepeta spp. [14][15][16][17][20][21][22] The third major constituent of the oil, β-cubebene, was previously found in Nepeta spp. as well as in oil from an Iranian Hymenocrater taxon.…”