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Synthesis of Esters Via a Greener Steglich Esterification in Acetonitrile
Published on: October 30, 2018
Bicyclo[4.4.0]decane oxygenated sesquiterpenes from Eryngium maritimum essential oil
Florent Darriet1, Mourad Bendahou, Jean-Marie Desjobert
1Université de Corse, UMR CNRS 6134, Laboratoire Chimie des Produits Naturels, Corti, France.
Abstract:
Investigation of the essential oil of the aerial parts of Eryngium maritimum L. from Corsica led to the isolation of one known sesquiterpene (1) and three new oxygenated sesquiterpenes with a muurolane or cadinane skeleton (2-4). Structure assignments of 4 βH -muurol-9-en-15-al (1), 4 βH -cadin-9-en-15-al (2), 4 βH -muurol-9-en-15-ol (3) and 4 βH -cadin-9-en-15-ol (4) were carried out by GC/MS (EI and CI) and comprehensive 1D and 2D NMR spectroscopy. Antibacterial activity of Eryngium maritimum L. oil and column chromatography fractions have been investigated for the first time. The oxygenated fraction, which contains the four sesquiterpenes, was efficient against Listeria monocytogenes and Echerichia coli.
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