Natural abundance 17O NMR spectra of coumarins, furocoumarins and related compounds
- 1 June 1987
- journal article
- research article
- Published by Wiley in Magnetic Resonance in Chemistry
- Vol. 25 (6) , 489-491
- https://doi.org/10.1002/mrc.1260250606
Abstract
The 54.2 MHz 17O NMR spectra of a series of naturally occurring coumarins and furocoumarins and those of a number of related model compounds are described. The 17O chemical shifts of the furocoumarins can be predicted by the evaluation of the data of substructures in model compounds. syn‐Periplanar γ‐ and long‐range interaction effects can be interpreted in terms of steric and electronic effects.Keywords
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