13C??NMR spectra and carbon??proton coupling constants of variously annulated furocoumarins

…, A Chilin, G Pastorini, P Rodighiero

文献索引：Guiotto, A.; Manzini, P.; Chilin, A.; Pastorini, G.; Rodighiero, P. Journal of Heterocyclic Chemistry, 1985 , vol. 22, p. 649 - 656

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被引用次数: 10

摘要

Abstract The 13 C-nmr spectra of variously annulated methylfurocoumarins are reported. The assignments of chemical shifts for all the C resonances has been achieved by using carbon-proton coupling constants, relaxation efficiency considerations and shift effects caused by the introduction of methyl groups at various positions of the furocoumarin nucleus. Substituent effects on 13 C chemical shifts and carbon-proton coupling constants ...