An acetylated monoterpene and a sesquiterpene alcohol from Psiadia anchusifolia

Two compounds identified as 7,7-dimethyl-2-methylenebicyclo[3.1.1]heptan-6-ol acetate and 6,6,8,9-tetramethyltricyclo[3.3.3.0]undec-7-en-2-ol were isolated from the essential oil of the fresh leaves of Psiadia anchusifolia. Their structures were determined by extensive NMR studies ( 1H NMR, 13C NMR,...

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Bibliographic Details
Published in:Phytochemistry (Oxford) 2004-04, Vol.65 (7), p.897-901
Main Authors: Gauvin, Anne, Susperregui, Jacques, Barth, Patrick, Louis, Rémy, Déléris, Gérard, Smadja, Jacqueline
Format: Article
Language:English
Subjects:
6,6,8,9-Tetramethyltricyclo[3.3.3.0]undec-7-en-2-ol
7,7-Dimethyl-2-methylenebicyclo[3.1.1]heptan-6-ol acetate
Acetylated monoterpene
Acetylation
Alcohols - chemistry
Alcohols - isolation & purification
Asteraceae
Asteraceae - chemistry
Biological and medical sciences
Chemical constitution
Chemical Sciences
Crystallography, X-Ray
Essential oil
Fundamental and applied biological sciences. Psychology
Molecular Structure
Monoterpenes - chemistry
Monoterpenes - isolation & purification
Nuclear Magnetic Resonance, Biomolecular
Oils, Volatile - chemistry
Plant Leaves - chemistry
Plant physiology and development
Psiadia anchusifolia
Sesquiterpene alcohol
Sesquiterpenes - chemistry
Sesquiterpenes - isolation & purification
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Summary:Two compounds identified as 7,7-dimethyl-2-methylenebicyclo[3.1.1]heptan-6-ol acetate and 6,6,8,9-tetramethyltricyclo[3.3.3.0]undec-7-en-2-ol were isolated from the essential oil of the fresh leaves of Psiadia anchusifolia. Their structures were determined by extensive NMR studies ( 1H NMR, 13C NMR, DEPT, 1H- 1H COSY, HSQC, HMBC) as well as by X-ray crystallographic analysis. The acetylated monoterpene ( 1) and the unusual sesquiterpene alcohol ( 3) were detected as the major constituents of the essential oil of Psiadia anchusifolia. Isolation and identification of these two new compounds are reported.
ISSN:0031-9422
1873-3700
DOI:10.1016/j.phytochem.2004.02.008