Relative Stereochemistry and Absolute Configuration of Farinosin, a Eudesmanolide From Encelia farinosa

The naturally occurring eudesmanolide farinosin (1) is now fully characterized for the first time despite its original isolation almost half a century ago. The early assumed relative stereochemistry and absolute configuration were confirmed by vibrational circular dichroism together with evaluation...

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Bibliographic Details
Published in:Chirality (New York, N.Y.) N.Y.), 2016-05, Vol.28 (5), p.415-419
Main Authors: Ortega, Alfredo R., Sánchez-Castellanos, Mariano, Pérez-Hernández, Nury, Robles-Zepeda, Ramón E., Joseph-Nathan, Pedro, Quijano, Leovigildo
Format: Article
Language:English
Subjects:
absolute configuration
Asteraceae - chemistry
Chirality
Circular Dichroism
Circularity
Crystallography, X-Ray
Dichroism
Hooft parameter
Molecular conformation
Molecular Structure
relative stereochemistry
Sesquiterpenes - chemistry
single crystal X-ray diffraction
Solid state
Stereochemistry
Stereoisomerism
vibrational circular dichroism
X-rays
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Summary:The naturally occurring eudesmanolide farinosin (1) is now fully characterized for the first time despite its original isolation almost half a century ago. The early assumed relative stereochemistry and absolute configuration were confirmed by vibrational circular dichroism together with evaluation of the Hooft X‐ray parameters. The molecular conformation is very similar in the gas stage and in the solid state. Chirality 28:415–419, 2016. © 2016 Wiley Periodicals, Inc.
ISSN:0899-0042
1520-636X
DOI:10.1002/chir.22595