New compounds from the essential oil and absolute of Lavandula luisieri L
2004
Lavoine-Hanneguelle, S. | Casabianca, H.
Some new constituents were discovered in a very unusual spanish lavender: Lavendula luisieri (Rozeira) Riv. Mart. The essential oil of L. luisieri, which is produced on an industrial scale, was analyzed by a combination of GC and GC/MS. Many components identified were irregular monoterpenoids, with a cyclopentanic structures unique in the plant kingdom, like alpha-necrodyl acetate (20-25% of the oil) or alpha-necrodol. The new structures identified were: 3,4,4-trimethyl-2-cyclohexen-1-one,3,4,4-trimethyl-5-hexen-2-one,2,3,4,5-tetramethyl-2-cyclopenten-1-one,2,3,5,5-tetramethyl-4-methylene-2-cyclopenten-1-one, 1,1,2,3-tetramethyl-4-hydroxymethyl-2-cyclopentene, 2,4,5,5-tetramethyl-cyclopentadien-1,3-carboxylic acid and selina-4,7(11)-diene. A monoterpene whose exact structure remains unknown, is present in the oil at a level of (2-4%). Other main compounds were 1,8-cineole and lavandulyl acetate.
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