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Proton magnetic resonance spectrum of 4-pyrone, chromone and xanthone

✍ Scribed by Caroline T. Mathis; J.H. Goldstein


Publisher
Elsevier Science
Year
1966
Weight
38 KB
Volume
22
Category
Article
ISSN
0371-1951

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The proton magnetic resonance spectrum o
✍ Andrew DeBoer πŸ“‚ Article πŸ“… 1973 πŸ› John Wiley and Sons 🌐 English βš– 224 KB

## Abstract The proton magnetic resonance spectrum of 4‐__t__‐butyl‐5,6‐dihydro‐4H‐pyran has been analyzed with the aid of the paramagnetic shift reagent Eu(fod)~3~. All hydrogen‐hydrogen spin‐spin coupling constants are reported and a conformation is suggested which is consistent with these data.

Proton magnetic resonance spectrum of th
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Abstrnct-The PMR spectrum of thiophen dissolved in a nematic phase is reported. This spectrum has been analysed iteratively. The ratios of the various inter-proton distances determined in this study are in good agreement with those previously reported.