The complete assignment of the 1H, 13C and 19F NMR spectra of eight Ñuoro-substituted 3H-naphthopyrans was achieved by the concerted application of homonuclear (1HÈ1H) and heteronuclear (13CÈ1H and 19FÈ1H) correlations.
Complete assignments of the 1H and 13C NMR spectra of some fluoro-substituted chromenes
✍ Scribed by Claude Barberis; Myléne Campredon; Vladimir Lokshin; Gérard Giusti; Robert Faure
- Publisher
- John Wiley and Sons
- Year
- 1995
- Tongue
- English
- Weight
- 159 KB
- Volume
- 33
- Category
- Article
- ISSN
- 0749-1581
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✦ Synopsis
Abstract
The total assignment of the ^1^H and ^13^C NMR spectra of four fluoro‐substituted chromenes was deduced from the concerted application of homonuclear correlation (COSY), ^1^H‐detected one‐bond heteronuclear multiple quantum coherence (HMQC) and long‐range (two and three bonds) heteronuclear multiple bond connectivity (HMBC) experiments.
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