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13 C NMR spectra of a series of 2′,3′,4′‐trimethoxyflavones. Reinvestigation of signal assignment in 13 C NMR spectra of flavones
Author(s) -
Wallet J.C.,
Gaydou E. M.
Publication year - 1993
Publication title -
magnetic resonance in chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.483
H-Index - 72
eISSN - 1097-458X
pISSN - 0749-1581
DOI - 10.1002/mrc.1260310520
Subject(s) - chemistry , chemical shift , flavones , nmr spectra database , spectral line , lanthanide , carbon 13 nmr , carbon 13 nmr satellite , nuclear magnetic resonance spectroscopy , reagent , proton nmr , fluorine 19 nmr , stereochemistry , organic chemistry , ion , physics , chromatography , astronomy
13 C NMR chemical shifts of a series of 2′,3′,4′‐trimethoxylated flavones are reported. The 13 C NMR chemical shifts of 2′,3′, 4′‐trimethoxyflavone was reinvestigated by 2D NMR. It is shown that two signals which were assigned by the lanthanide shift reagent method in an earlier study must be reversed.