Identification of (1R)(+)-Verbenone in Essential Oils of Rosmarinus officinalis L.

✍ Scribed by Uzi Ravid; Eli Putievsky; Irena Katzir; Efraim Lewinsohn; Nativ Dudai

• Publisher: John Wiley and Sons
• Year: 1997
• Tongue: English
• Weight: 117 KB
• Volume: 12
• Category: Article
• ISSN: 0882-5734
• DOI: 10.1002/(sici)1099-1026(199703)12:2<109::aid-ffj618>3.0.co;2-a

✦ Synopsis

Large quantities of verbenone were observed in three rosemary oils (27.0±28.9%), while in the other rosemary oils analysed the content was 2.3±21.6%. Neat separation of verbenone enantiomers from rosemary essential oils was achieved on a g-cyclodextrin column. The order of elution of verbenone enantiomers was 1R, 1SÀ on the g-cyclodextrin column and the opposite on the b-cyclodextrin column used. The ()-verbenone in three rosemary oils was 100% enantiomerically pure. In all other rosemary oils the ()-enantiomer was detected in very high enantiomeric purity (95.9±99.9%).