Chemical and Pharmaceutical Bulletin
Online ISSN : 1347-5223
Print ISSN : 0009-2363
ISSN-L : 0009-2363
AN EASY AND ABSOLUTE DIAGNOSIS FOR THE COUMARIN/CHROMONE DISCRIMINATION BY USING OXYGEN-17 NMR
Kazuo NAGASAWA, Yukako HIGUCHI, Keiichi ITO, Mamoru IMANARI, Naoyuki FUJII
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Keywords: O-NMR, coumarin/chromone discrimination, natural abundance, double-check technique, chemical shift difference
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1993 Volume 41 Issue 1 Pages 211-213

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Abstract
O-NMR at natural abundance was, for the first time, employed so effectively for the characterization between comarins (I) and chromones (2) .
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© The Pharmaceutical Society of Japan
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