The 'H NMR spectra of variously annulated pyranocoumarins are reported. The complete assignment of chemical shifts was achieved by using coupling constants and the shift effects induced by the introduction of methyl groups at various positions on the pyranocoumarin nucleus, and by comparison with th
1H NMR spectra of variously annulated furocoumarins
β Scribed by Paolo Manzini; Paolo Rodighiero; Adriana Chilin; Adriano Guiotto
- Publisher
- John Wiley and Sons
- Year
- 1985
- Tongue
- English
- Weight
- 142 KB
- Volume
- 23
- Category
- Article
- ISSN
- 0749-1581
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β¦ Synopsis
The 'HNMR spectra of variously annulated methylfurocournarins are reported. The assignment of the chemical shifts for all the protons was achieved by using coupling constants, and shift effects induced by the introduction of methyl groups at various positions on the furocoumarin nucleus.
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