Complete assignments of 1H and 13C NMR spectral data for benzylidenebenzyl butyrolactone lignans

• Published in: Magnetic resonance in chemistry Vol. 43; no. 11; pp. 966 - 969
• Main Authors: da Silva, Rosangela, Pedersoli, Susimaire, Lacerda Junior, Valdemar, Donate, Paulo Marcos, de Albuquerque, Sérgio, Bastos, Jairo Kenupp, de Matos Araújo, Ana Lúcia Santos, e Silva, Márcio Luis Andrade
• Format: Journal Article
• Language: English
• Published: Chichester, UK John Wiley & Sons, Ltd 01.11.2005
• Subjects: 13C NMR; 1H NMR; 2D NMR; benzylidenebenzyl butyrolactone lignan; Carbon Isotopes; carthamogenin; gossypifan; lignan lactone; Lignans - chemistry; Magnetic Resonance Spectroscopy - methods; Magnetic Resonance Spectroscopy - standards; Molecular Structure; Protons; Reference Standards; savinin
• ISSN: 0749-1581; 1097-458X
• DOI: 10.1002/mrc.1655

The structures of three benzylidenebenzyl butyrolactone lignans (gossypifan, carthamogenin, and savinin) have been established on basis of 1H NMR and 13C NMR spectroscopic data. The 1H NMR and 13C NMR spectra of these lignans have been fully assigned by the use of techniques such as gCOSY, non‐edited gHSQC, and gHMBC. Complete assignment and most homonuclear hydrogen coupling constant measurements were performed, also providing enough data for the determination of the relative stereochemistry. Copyright © 2005 John Wiley & Sons, Ltd.