Bulletin of the Chemical Society of Japan
Online ISSN : 1348-0634
Print ISSN : 0009-2673
ISSN-L : 0009-2673
13C NMR Signal Assignments of Herqueinone and Its Phenalenone Derivatives
Takayuki SugaTakamitsu YoshiokaToshifumi HirataTadashi Aoki
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1983 Volume 56 Issue 12 Pages 3661-3666

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Abstract

The full assignments of the 13C NMR signals of the herqueinone-type phenalenone, herqueinone, were established by a combination of the single-frequency off-resonance decoupling technique and the 13C-enrichment technique using the 13C-labeled tracer. Furthermore, the full assignments of the 13C NMR signals of deoxyherqueinone-type, dihydroherqueinone-type, and xanthoherqueinone-type phenalenone were completed on the basis of the application of the chemical shift rule and the mutual comparison of their chemical shifts.

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